最新刊期
卷 38 ， 期 11 ， 2019
- 摘要：A high performance liquid chromatography-tandem mass spectrometric(HPLC-MS/MS) method was developed for the simultaneous determination of 15 prohibited nitroimidazoles(NMZs) in 4 matrixes of cosmetics.Samples were ultrasonically extracted with solvent,and then purified by modified QuEChERS method,filtered through a 0.22 μm microporous membrane.The target compounds were separated on an XSelect CSH C18(2.1 mm×150 mm,3.5 μm) column by gradient elution using acetonitrile solution containing 0.1% formic acid-0.1%formic acid as mobile phase at a flow rate of 0.25 mL/min.The MS/MS analysis was performed with electrospray ion source in positive mode under multiple reaction monitoring(MRM) mode.The matrix matched calibration was used for the quantification.Results showed that there were good linear relationships for 15 nitroimidazoles in the concentration range of 5-500 μg/L with their correlation coefficients(r2) all above 0.99.The limits of detection(LOD) and limits of quantitation(LOQ) were in the ranges of 0.8-200 μg/kg and 4-400 μg/kg,respectively.The recoveries for 15 prohibited drugs at three spiked levels were in the range of 868%-115%with relative standard deviations(RSD) of 0.3%-84%.With simple pretreatment,high separation efficiency and high recovery,the method was suitable for the analysis of nitroimidazoles in cosmetics products.关键词：QuEChERS;nitroimidazoles(NMZs);high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS);cosmetics;prohibited drugs
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发布时间： - 摘要：A method was established for the simultaneous determination of volatile organic compounds(VOCs)in surface water and drinking water by gas chromatography-triple quadrupole tandem mass spectrometry(GC-MS/MS)with head space-solid phase microextraction(HS-SPME).The performance of the five fibers was tested in univariate mode whereas the other variables affecting the efficiency of SPME analysis were optimized by factorial design and central composite design.The optimal SPME extraction conditions were as follows：75 μm of carboxen/polydimethylsiloxane fiber,5 mL of sample volume,40 min of extraction time,40 ℃ of extraction temperature,300 ℃ of desorption temperature,and 15.0% of NaCl.The analytes were determined by GC-MS/MS in selected reaction monitoring(SRM)mode,and the VOCs were quantified by internal standard method.Results showed that there were good linear relationships for 55 VOCs in the ranges of 0.04-0.4 μg/L,0.4-4.0 μg/L and 4.0-100 μg/L,respectively,with correlation coefficients(r2)all larger than 0.99.The limits of detection(LODs) and limits of quantification(LOQs)were in the range of 0.03-80 ng/L and 0.1-300 ng/L,respectively.Recoveries at three spiked levels of 0.2,2.0 and 40 μg/L ranged from 77.3% to 124% with relative standard deviations(RSDs,n=6) renged from 1.3%to 17%.The developed method was applied in the determination of VOCs in surface water and drinking water,in which 37 VOCs and 25 VOCs were detected,respectively.The method is accurate,reliable,simple,rapid and sensitive,and is suitable for the simultaneous detection of VOCs in surface water and drinking water.关键词：factorial design;central composite design;head space-solid phase microextraction(HS-SPME);gas chromatography- triple quadrupole tandem mass spectrometry(GC-MS/MS);volatile organic compounds(VOCs);surface water;drinking water
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发布时间： - 摘要：An analytical method was developed for screening and quantitative detection of 20 phthalates (PAEs) in consumer products by two-dimensional gas chromatography-time of flight mass spectrometry(GC×GC-TOF MS).Samples were shattered,and followed by ultrasonic extraction with hexane.The extract was purified by dispersive solid phase extraction(dSPE) with graphitized carbon black(GCB) and magnesium sulfate anhydrous(MgSO4),analyzed by time-of-flight mass spectrometry and quantified by external standard method.Experimental results demonstrated that there were good linear relationships for 20 PAEs in the range of 0.03-30 mg/L with their correlation coefficients(r2) larger than 099.The limits of detection(LODs) and limits of quantitation(LOQs) were in the ranges of 0.09-2213 mg/kg and 0.25-63.1 mg/kg,respectively.The recoveries at low,medium and high three spiked levels ranged from 63.2% to 120% with relative standard deviations(RSDs,n=6) of 0.30%-10%.This method was practically used in the detection for different samples.Results showed that diisononyl phthalate was found containing 155 mg/kg in a plastic sample,and dibutyl phthalate and di(2-ethylhexyl) phthalate were 1.48 mg/kg and 7.66 mg/kg in a rubber sample,respectively.This method could be applied in the determination of 20 phthalates including 5 phthalate isomers in consumer products with accuracy,efficiency and easy pretreatment.关键词：two dimensional gas chromatography tandem with time of flight mass spectrometry;phthalates;dispersive solid phase extraction;consumer products
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发布时间： - 摘要：An automatic solid sampling system for time of flight mass spectrometer has been developed in this paper.It is based on a conventional AB Sciex Triple TOF 4600 time of flight mass spectrometer(TOF) with configuration of mobile platform，sampling rod,industrial camera,LED light source,industrial display screen and other components.Solid organic samples could be tested and analyzed directly without any complex pre processing.References are provided for upgrading and renovating of relevant laboratories according to this system.Insoluble unknown organic compounds in pharmaceutical,food,environmental and other kinds of samples could be analyzed quickly,and rapid screening for targets could be achieved by this system.The operator may observe the status of the sample at the inlet of mass spectrometry in real time by screen without the help of extra light source.Automatic test for men machine separation has been realized with software to control.关键词：time of flight mass spectrometer(TOF);solid sample;automatic sampling system;device development
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发布时间： - 摘要：A high performance liquid chromatography-tandem mass spectrometric(HPLC-MS/MS) method was developed for the investigation on exposure levels of 16 phthalates(PAEs) in human plasma collected from the Pearl River Delta.Plasma samples were pretreated by protein precipitation with acetonitrile,and followed by liquid-liquid extraction with n hexane.Results demonstrated that 6 PAEs,i.e.dimethyl phthalate(DMP),diisobutyl phthalate(DiBP),di n butyl phthalate(DnBP),butyl benzyl phthalate(BBP),dicyclohexyl phthalate(DCHP) and di (2-ethyl hexyl) phthalate(DEHP) were detected in plasma samples.The detection rates for DEHP,DiBP,DnBP,DMP,DCHP and BBP were 100%,98.0%,62.0%,49.0%,5.00%and 5.00%,respectively.Contents for ∑PAEs were in the range of 12.4-1 399 ng/g,in which median and mean were 39.8 ng/g and 57.7 ng/g,respectively.DEHP occupied the highest ratio among the 6 PAEs,which was in the range of 90.01%-99.96%.By comparing the concentrations of PAEs in different sex and age groups,PAEs in female and less than 40 years old groups were detected with higher concentrations,and significant differences occured only in DMP concentrations of different sex and age groups.关键词：phthalates;Pearl River Delta;plasma;high performance liquid chromatography-tandem mass spectrometry
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发布时间： - 摘要：In this work,Ag nanoparticles/multi walled carbon nanotubes(AgNPs/MWCNTs) composites were synthesized with multi walled carbon nanotubes(MWCNTs) and silver nitrate as raw materials,and sodium borohydride as reduction agent,and the AgNPs/MWCNTs composites were characterized by ultraviolet visible absorption spectroscopy,infrared spectroscopy,Raman spectroscopy and X-ray diffraction.Based on this,an Ag nanoparticles/multi walled carbon nanotubes modified electrode(AgNPs/MWCNTs/GCE) was prepared by immobilizing AgNPs/MWCNTs onto the surface of glassy carbon electrode.Effects of buffer solution,pH value，supporting electrolyte and scanning rate on electrochemical reactivity of the AgNPs/MWCNTs/GCE were investigated.Results showed that the nanocomposite modified electrode had a better electrocatalytic activity for sulfamethoxazole(SMZ),compared with MWCNTs or Ag nanoparticles modified electrode.Under the optimized conditions,there was a linear relationship between SMZ and peak current in the range of 3.0×10-7-5.0×10-5 mol/L,and the limit of detection(S/N=3) was 6.4×10-8 mol/L.The method is simple and rapid,and could be used for the detection of SMZ in river samples.关键词：Ag nanoparticles;multi walled carbon nanotubes(MWCNTs);differential pulse voltammetry(DPV);sulfamethoxazole(SMZ);electrochemical sensor
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发布时间： - 摘要：An ultrahigh performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS) with EtOH/K2HPO4·3H2O aqueous two-phase extraction was developed for the simultaneous determination of eight alkaloids in Cynoglossum amabile Stapf et Drumm.Effects of aqueous two phase extraction conditions on extraction efficiencies of eight alkaloids were optimized by single factor experiment.The optimum conditions were as follows:30%(mass ratio) of ethanol,20%(mass ratio) of K2HPO4·3H2O,6∶1 for an extractant to sample ratio,and 4.0 for pH value.The extract was analyzed by UHPLC-MS/MS with acetonitrile-0.1 mol/L ammonium acetate as mobile phases,and eight alkaloids in the extract were well separated.There were good linear relationships for the analytes in the certain concentration ranges with their correlation coefficients(r2) larger than 0.99.The relative standard deviations(RSDs) for precision,reproducibility and recovery were all less than 3.0%.The method is convenient，sensitive and accurate，and is suitable for the determination and confirmation of eight alkaloids in Cynoglossum amabile Stapf et Drumm.关键词：Cynoglossum amabile Stapf et Drumm;alkaloid;aqueous two phase extraction;ultra high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)
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发布时间： - 摘要：A novel dispersive liquid-liquid microextraction method based on solidification of floating organic droplets(DLLME-SFO) was developed for the determination of six kinds of chlorinated polycyclic aromatic hydrocarbons and fifteen kinds of polycyclic aromatic hydrocarbons in water samples by high performance liquid chromatography with fluorescence detection.The factors relevant to the microextraction efficiency,such as type and volume of disperant and extraction solvents,amount of NaCl and extraction time were investigated and optimized.The optimal liquid liquid microextraction experiment conditions were as follows:10 μL of 1 dodecanol as extractant solvent,500 μL of methanol as dispersive solvent,6%(mass percentage) NaCl,2 min of extraction time for vortex oscillation.The separation of the target compounds was performed on a SUPELCOSILTMLC-PAH column(150 mm×4.6 mm,5 μm) with acetonitrile-water as mobile phase by gradient elution.Quantitative determination was achieved by external standard method.Results showed that there existed good linear relationships for 21 target compounds in certain concentration ranges with their correlation coefficients(r) not less than 0.999.The average recoveries for the target compounds ranged from 70.6%to 98.7%with corresponding relative standard deviations(RSD,n=3) of 20%-10%.The limits of detection(LOD,S/N=3) and limits of quantification(LOQ,S/N=10) were in the ranges of 0.000 7-0.009 μg/L and 0.002 2-0.028 μg/L,respectively.The proposed method is applicable for the rapid determination of chlorinated polycyclic aromatic hydrocarbons and polycyclic aromatic hydrocarbons in surface water samples.关键词：chlorinated polycyclic aromatic hydrocarbons;dispersive liquid-liquid microextraction method based on solidification of floating organic droplets(DLLME-SFO);high performance liquid chromatography;tap water
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发布时间： - 摘要：A gas chromatography with flame ionization detector(GC/FID) was developed for the determination of ten organochlorine and organophosphorus pesticide residues in vegetable samples based on a polydimethylsiloxane(PDMS)/allyl o cucurbit［7］uril(Q7-OCH2CH‖CH2) coated solid phase microextraction(SPME) fiber.The PDMS/Q7-OCH2CH‖CH2 coated SPME fiber was fabricated with Q7-OCH2CH‖CH2 and hydroxyl terminated polydimethylsiloxane(OH-PDMS) as stationary phases and γ-methacryloxypropyltrimethoxylsilane(KH570) as bridge reagent by sol-gel method and cross-linking technique.The limits of detection of the developed method were in the range of 0.01-0.08 mg/kg for the target pesticide residues,and the limits of quantitation ranged from 0.03 mg/kg to 0.26 mg/kg with an enrichment factor of 14-67 fold.The mean recoveries(n=3) at low,medium and high three spiked levels ranged from 61.3%to 120%,with intra percision and inter precision both in the range of 46%-99%(n=5,spiked 50 mg/kg).The proposed method was simple and sensitive,and was suitable for the simultaneous analysis of organochlorine and organophosphorus pesticide residues in vegetables.关键词：allyl-o-cucurbit［7］ uril;solid phase microextraction fiber;gas chromatography;organochlorine pesticide residues;organophosphorus pesticide residues;vegetable samples
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发布时间： - 摘要：Polydopamine fluorescent nanoparticles(F-PDA) were prepared with dopamine hydrochloride by oxidation under alkaline conditions.The F-PDA@MnO2 complex was prepared by combining F-PDA with manganese dioxide(MnO2) nanosheets.Based on this,a fluorescent probe based on F-PDA@MnO2 complex was constructed for the detection of acetylcholinesterase(AChE) as the fluorescence of F-PDA could be quenched by adding MnO2 nanosheets.In the presence of acetylthiocholine iodide(ATCh),the fluorescence of F-PDA was restored after adding AChE.Results showed that there was a good linear relationship for fluorescence recovery of the probe with AChE in the concentration range of 5-100 mU/mL,and the detection limit(S/N=3) was 014 mU/mL.The probe was applied in the detection of AChE in buffer solution with high selectivity.The recoveries were in the range of 89.5%-120%with the relative standard deviations(RSD) of 1.6%-2.5%.The research results provide a new methodological model for the construction of sensing system based on F-PDA.关键词：polydopamine nanoparticles;MnO2 nanosheets;fluorescence;acetylcholinesterase
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发布时间： - 摘要：A high performance liquid chromatography-inductively coupled plasma-tandem mass spectrometry(HPLC-ICP-MS/MS) was developed for the simultaneous determination of six arsenic species,i.ep-arsanilic acid(p-ASA),roxarsone(ROX) and their degradation products arsenite(As(Ⅲ)) and arsenate(As(Ⅴ))(inorganic arsenic),monomethylated arsenic(MMA) and dimethylated arsenic(DMA) in soils.The soil samples were extracted with 0.1 mol/L NaH2PO4-01 mol/L H3PO4(9∶1,by volume) as extraction solvent at a liquid to solid ratio of 50 mL/g,by microwave assisted extraction at 80 ℃ for 30 min.Five arsenic species in the extracts were well separated within 15 min on a Hamilton PRP-X100 anion exchange column(250 mm×4.1 mm，10 μm) using 60 mmol/L(NH4)2HPO4 containing 5% methanol(pH 6.0) and water as mobile phases by gradient elution.Under the optimized conditions,there were good linear relationships for the analytes in the concentration range of 0-500 μg/L with their correlation coefficients(r2) not less than 0.999 1.The limits of detection were 0.043-0080 μg/kg for the analytes，and the relative standard deviations ranged from 1.7% to 3.8%.The method was applied in the analysis of three soil samples,and recoveries for the analytes were in the ranges of 71.6%-106%.The developed method is simple,rapid,accurate and reliable,and is suitable for the determination of arsenic species in soils.关键词：high performance liquid chromatography;inductively coupled plasma-tandem mass spectrometry;microwave assisted extraction;arsenic species analysis;soil
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发布时间： - 摘要：A method of high performance liquid chromatography(HPLC) with deep eutectic solvent extraction was established for the rapid determination of organic synthetic pigments in drinks and compound wines.The deep eutectic solvent was a new hydrophobic eutectic material synthesized with tetrabutyl ammonium chloride and octanoic acid.Samples were dissolved with water,then extracted with 200 μL deep eutectic solvent,finally detected by HPLC-diode array detector(DAD) and quantified by external standard method.Results indicated that there were good linear relationships for 11 kinds of organic synthetic pigments in respective mass concentration ranges with their correlation coefficients(r2) all greater than 0.996.The limits of detection(LOD)and the limits of quantitation(LOQ) were in the ranges of 0.03-0.31 mg/kg and 0.08-1.02 mg/kg,respectively.The recoveries ranged from 92.6% to 103% with relative standard deviations(RSD)of 0.98%-4.3%.The method is rapid,simple and accurate,and is suitable for the determination of organic synthetic pigments in drinks and compound wines.关键词：deep eutectic solvent;organic synthetic pigments;green solvent;high performance liquid chromatography
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发布时间： - 摘要：Magnetic particles with a particle size of 400 nm were synthesized in one step by hydrothermal method for the detection of Pb2+ in human serum.They were characterized by Zeta potentiometry and single particle inductively coupled plasma mass spectrometry(SP-ICP-MS).The serum samples were pretreated by microwave digestion method,then separated and enriched with Fe3O4 magnetic particles,and finally detected by ICP-MS.Experimental conditions for the separation and enrichment of Pb2+ using Fe3O4 magnetic particles were optimized.The quantitative detection of Pb2+ in serum was successfully achieved at pH 50,using a 400 μL of adsorbent adsorbing for 30 min,and the enrichment factor was 10.The limit of detection(LOD) and the limit of quantitation(LOQ) were 7 ng/L and 23.1 ng/L,respectively.关键词：separation and enrichment of magnetic particles;inductively coupled plasma mass spectrometry(ICP-MS);Pb2+;human serum
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发布时间： - 摘要：A method of ultra high performance liquid chromatography(UHPLC) was developed for the simultaneous determination of eight components,ie.chlorogenic acid,cryptochlorogenic acid,rutin,nicotifiorin,hederacoside C,hederacoside D,hederasaponin B and α hederin in Hedera helix L..The dry leaves passed through 40 mesh sieve were put in 80% methanol with solid-liquid ratio of 1∶100.The solution then was refluxed by water bath for 1 h at 85 ℃ to prepare the test solution.The chromatographic separation was performed on an Agilent ZORBAX Eclipse Plus-C18(2.1 mm×100 mm,1.8 μm) column by gradient elution with acetonitrile and 0.05%phosphoric acid as mobile phases.Results indicated that the eight components in Hedera helix L.were well separated,and the relative standard deviations(RSD) of the method for precision and reproducibility were less than 3.0%.The eight components were found to be stable for 24 h in room temperature,and there existed good linear relationships for the analytes in corresponding mass concentration ranges with their correlation coefficients(r) not less than 0.999 5.The limits of detection and the limits of quantitation were in the ranges of 0.40-10.58 μg·mL-1 and 1.31-34.61 μg·mL-1,respectively.Average recoveries for the 8 components were between 97.3%and 108%with RSD(n=6) of 0.51%-3.2%.Therefore,this method could be applied in the quantitative analysis of the 8 components in Hedera helix L..关键词：Hedera helix L.;ultra high performance liquid chromatography(UHPLC);ivy saponins;organic acids;flavonoids
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发布时间： - 摘要：Near infrared(NIR) spectroscopy for measuring blood glucose concentration has great significance in biomedicine.In this paper,Fourier transform infrared(FTIR) spectroscopy was used to study the influence of different magnetic field strengths on the near infrared spectra of different concentrations of glucose solution.The near infrared absorption intensity and partial peak position of glucose under magnetic field were observed to change significantly.The influence mechanism of magnetic field on the absorption of near infrared spectrum of glucose solution was systematically analyzed.A quantitative analysis model for glucose solution under magnetic field was established by partial least squares regression(PLS).The calibration set was used to verify the calibration coefficient of glucose solution.Experimental results showed that the magnetic field induces the dipole moment of the glucose molecular group,leading to the dipole moment of the molecule and its absorption increasing,while the glucose molecules tend to align along the direction parallel to the magnetic field under the action of magnetic field,and the consistency of the linear relationship between absorbance and concentration change of molecular vibration frequency is greatly improved.This study helps to improve the absorption intensity of glucose molecules and its measurement accuracy,and provides a technical support for further improving the accuracy for blood glucose detection.关键词：glucose;hydrogen bond;magnetic field;near infrared spectroscopy;partial least square regression
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发布时间： - 摘要：An ultra high performance liquid chromatography-tandem mass spectrometric(UPLC-MS/MS) method was established for the determination of ochratoxin A(OTA) in wine based on stable isotope direct dilution technique.Samples were diluted with acetonitrile-water-formic acid(298∶70∶0.2,by volume),and the matrix effects were efficiently compensated with the 13C20-labelled internal standard.The analyte was separated on an ACQUITY BEH C18 column(100 mm×2.1 mm,1.7 μm) by gradient elution with 0.1% formic acid solution and 0.1% formic acid acetonitrile as mobile phases,and then analyzed under multiple reaction monitoring(MRM) mode in ESI+ mode.Results showed that there was a good linearity for OTA in the range of 0.05-1 μg/L with a correlation coefficient(r2) of 0.999 6.The limit of detection(LOD,S/N≥3) and the limit of quantitation(LOQ,S/N≥10) of the method were 0.1 μg/L and 0.3 μg/L,respectively.Recoveries at three spiked levels of 1.00,2.00,5.00 μg/L ranged from 102% to 113%,with intra day RSDs and inter day RSDs of 4.1%-9.4% and 4.4%-9.7%,respectively.The method was applied in the analysis of OTA in fifteen red wines and five white wines made in China,and OTA was undetected in all wines.The method was simple,effective and low-consumption,and was suitable for the determination of OTA in wine.关键词：stable isotope;direct dilution;ultra high performance liquid chromatography-tandem mass spectrometry;wine;ochratoxin A
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发布时间： - 摘要：A rapid analytical method was developed for the determination of three isothiazolinone reservatives,i.e2-methyl-4-isothiazoline-3-one(MI),5-chloro-2-methyl-4-isothiazoline-3-one(CMI) and 1,2-benzothiazol-3-one(BIT) in children's color clay modeling toys by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).The sample was ultrasonically extracted with methanol,then filtrated after centrifugation,and finally separated on a Kinetex C18 column(100 mm×3 mm，2.6 μm) by gradient elution with methanol and water as mobile phases at a flow rate of 300 μL/min.The sample was analyzed by HPLC-MS/MS in multiple reaction monitoring(MRM) mode,and quantified by the external standard method.Results showed that there were good linear relationships for three analytes in the concentration range of 1.0-100.0 μg/L with correlation coefficients(r) not less than 0.999 0.Average recoveries for the analytes ranged from 80.2% to 109%,with relative standard deviations(RSD,n=5) of 1.3%-7.0%.The limits of detection(LOD) for MI,CMI and BIT were 10,10 and 20 μg/kg,and the limits of quantitation(LOQ) were 30,30 and 60 μg/kg,respectively.关键词：high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS);isothiazolinone preservatives;childrens color clay modeling toys
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发布时间： - 摘要：A method was established for the separation and determination of different inorganic iodine species(iodide and iodate ions) in soils by high performance liquid chromatography and inductively coupled plasma-mass spectrometry(HPLC-ICP-MS).The sample was ultrasonically extracted with 4 mmol/L tetrabutylammonium hydroxide(TBAH) solution.After centrifugation,the sample was purified with Na column and 022 μm hybrid filter membrane.The determination was performed by HPLC-ICP-MS combined with a Dionex IonPac AS16 anion exchange column using 50 mmol/L ammonium carbonate(pH 9.8) as mobile phase.Results indicated that the linear ranges for two inorganic iodine species(I- and IO-3) ranged from 10 μg/L to 500 μg/L with correlation coefficients(r2) greater than 0.999.The limits of detection for the two iodine species were 0.05 μg/L and 0.1 μg/L,and the limits of quantitation were 2 μg/L and 5 μg/L,respectively.The method was applied in the determination of two inorganic iodine species in soils,with spiked recoveries of 83.8%-108%and relative standard deviations(RSD) of 0.5%-3.0%,which were better than those obtained by the oscillation extraction.With the advantages of rapidness,high efficiency,good reproducibility and high sensitivity,the method is suitable for the determination of different inorganic iodine species in soils.关键词：high performance liquid chromatography-inductively coupled plasma-mass spectrometry(HPLC-ICP-MS);soil;inorganic iodine;species
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发布时间： - 摘要：In recent years,mineral oil hydrocarbons have been widely found in foods and food contact materials.Mineral oil Hydrocarbons are mainly the by product of petroleum refining process,which have received increasing attention globally because of their potential harmfulness to human beings.Determination of mineral oil hydrocarbons has been found to be a big challenge as their compositions are quite complex.The recent advances in analytical techniques have made contribution to facilitate this approach.Various extraction and purification methods have already been established,which are applicable to specific matrix.As for the analysis methods,solid phase extraction/gas chromatography(SPE/GC),gas chromatography-mass spectrometry(GC-MS),liquid chromatography-gas chromatography(LC-GC),two dimensional gas spectrometry(GC×GC) and nuclear magnetic resonance(NMR) have been established to quantify the specific content of mineral oil.The latest research progresses on main aspects of analytical techniques are presented in this paper,particularly the quantification of mineral oil in foods and food contact materials,which could provide references for further application and research.关键词：mineral oil hydrocarbon;food;food contact material;migration;review
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发布时间： - 摘要：Many methods have been used widely in quality detection of vegetable oils,including sensory evaluation,physical and chemical analysis,mass spectrometry,chromatography,chromatography mass spectrometry,etc.However,performing these traditional methods usually requires time consuming sample preparation and other complex processes.To meet the demands for developing industries and growing markets,a detection technique with simpler process and lower cost is needed in food quality detection.With the reduction of manufacturing cost and the improvement of performance,spectroscopy has been developing rapidly in the last decade for its rapidness,accuracy and non destructive application.The spectral detection of vegetable oil quality has become a hot research topic,and a vast application of spectral techniques could be expected in food detection.The recent research progresses of vegetable oil quality detection is updated in this review based on spectral techniques.Indicators for evaluating the quality of vegetable oils are introduced in the beginning.Applications of different spectral techniques in vegetable oil quality detection,such as infrared spectroscopy,Raman spectroscopy,fluorescence spectroscopy,ultraviolet spectroscopy,etc were highlighted afterwards.Furthermore,the current bottlenecks as well as the application prospects of spectral techniques in vegetable oil quality detection are predicted.关键词：spectrum;vegetable oil;quality;detection
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