LIU Fang,GONG Fang,QING Jiang,et al.Determination of 7 Phenolic Environmental Hormones in Citrus by QuEChERS/High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(12):1765-1771.
LIU Fang,GONG Fang,QING Jiang,et al.Determination of 7 Phenolic Environmental Hormones in Citrus by QuEChERS/High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(12):1765-1771. DOI: 10.19969/j.fxcsxb.21031702.
Determination of 7 Phenolic Environmental Hormones in Citrus by QuEChERS/High Performance Liquid Chromatography-Tandem Mass Spectrometry
A QuEChERS/high performance liquid chromatography-tandem mass spectrometry(QuEChERS/HPLC-MS/MS) was established for the simultaneous detection of seven phenolic environmental hormones in citrus.Effects of different extraction solvents,extraction time,extraction solvent volume and adsorbent types on the extraction efficiency for target compounds were compared.The samples were ultrasonically extracted twice with acetonitrile containing 0.1% formic acid after homogenization,and then purified by modified QuEChERS method with 50 mg PSA + 50 mg C,18,.The target compounds were separated on a Waters ACQUITY UPLC BEH C,18, column(50 mm × 2.1 mm,1.7 μm) by gradient elution,with water containing 0.5 mmol/L ammonium acetate and methanol as the mobile phases at a flow rate of 0.2 mL/min and a column temperature of 40 ℃.The mass spectra were recorded by negative electrospray ionization under the multiple reaction monitoring(MRM) mode.External standard method was used for the quantitative analysis.Under the optimized conditions,bisphenol A(BPA),nonylphenol(NP),bisphenol F(BPF) showed good linear relationships within the range of 0.5-100 μg/L,while bisphenol B(BPB),bisphenol S(BPS),,n,-nonylphenol(4-,n,-NP),,n,-octylphenol(4-,n,-OP) exhibited good linear relationships within 0.2-100 μg/L.The correlation coefficients(,r,2,) were not less than 0.994 1. The detection limits(LOD)and the quantitation limits(LOQ)of the method were in the ranges of 0.2-0.5 μg/L and 0.5-1.5 μg/L,respectively.At the three spiked levels of 10,250 and 500 μg/kg,the average recoveries for the target compounds ranged from 88.5% to 109%,with the relative standard deviations(RSD)of 1.2%-9.0%.The method was applied to the detection of 8 commercially available citrus samples.BPA was detected in 7 kinds of citrus,4-,n,-OP was detected in 5 kinds of citrus,NP and 4-,n,-NP were detected in 3 types of citrus,BPB was detected in 1 type of citrus,and BPF and BPS were not detected in all samples.The above results indicate that bisphenol environmental hormones are commonly found in commercially available fruits and need to be paid attention to.This method was simple to operate,rapid,sensitive,accurate and highly precise.It was suitable for the determination of 7 bisphenol environmental hormones in citrus.
关键词
高效液相色谱-串联质谱分散固相萃取环境激素柑橘
Keywords
high performance liquid chromatography-tandem mass spectrometryQuEChERSenvironmental hormonescitrus
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