Detection of Bisphenols Compounds in Water by High Performance Liquid Chromatography with Dispersive Solid Phase Extraction Based on Ce-Doped DUT-52 Metal Organic Framework
Scientific Papers|更新时间:2023-01-04
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Detection of Bisphenols Compounds in Water by High Performance Liquid Chromatography with Dispersive Solid Phase Extraction Based on Ce-Doped DUT-52 Metal Organic Framework
Journal of Instrumental AnalysisVol. 41, Issue 2, Pages: 164-171(2022)
GUO Li-nan,WANG Ya-hui,YAN Meng,et al.Detection of Bisphenols Compounds in Water by High Performance Liquid Chromatography with Dispersive Solid Phase Extraction Based on Ce-Doped DUT-52 Metal Organic Framework[J].Journal of Instrumental Analysis,2022,41(02):164-171.
GUO Li-nan,WANG Ya-hui,YAN Meng,et al.Detection of Bisphenols Compounds in Water by High Performance Liquid Chromatography with Dispersive Solid Phase Extraction Based on Ce-Doped DUT-52 Metal Organic Framework[J].Journal of Instrumental Analysis,2022,41(02):164-171. DOI: 10.19969/j.fxcsxb.21052102.
Detection of Bisphenols Compounds in Water by High Performance Liquid Chromatography with Dispersive Solid Phase Extraction Based on Ce-Doped DUT-52 Metal Organic Framework
Bisphenols(BPs) may dissolve from pipeline or other plastic products and pollute water.It is very important to analyze the BPs in water rapidly and accurately,though the matrix of the water sample is complex and the target analytes are usually at trace level.Therefore,how to enrich and separate the target objects efficiently is the key point for the determination of BPs.In this paper,a Ce(Ⅲ) doped metal organic framework composite(CeDUT-52) was synthesized via a solvothermal method,and used as an effective adsorbent for dispersive solid phase extraction(DSPE) to enrich three BPs in water,including bisphenol A(BPA),bisphenol F(BPF) and bisphenol AF(BPAF).The structure and morphology of the CeDUT-52 was characterized by X-ray diffractometry(XRD),Fourier-transform infrared spectroscopy(FT-IR),scanning electron microscopy(SEM) and energy dispersive spectrometry(EDS).The XRD,FT-IR and EDS results revealed that Ce was successfully doped into the octahedral DUT-52.Meanwhile,it was found in the SEM that the particle size of the doped adsorbent decreased from 2 μm to 500 nm.To acquire the optimal extraction conditions,effects of the CeDUT-52 usage(10,20,30,40 and 50 mg),adsorption time(5,10,15,20 and 25 min),elution solvent(methanol,acetonitrile,acetone and isopropanol) and elution volume(0.5 mL × 1,0.5 mL × 2,0.5 mL × 3 and 0.5 mL × 4) were investigated for the three BPs in water.Results showed that BPs could be completely adsorbed with 40 mg of adsorbent in 50 mL water within 20 minutes.Elution efficiency could reach 88.9%-101% with 0.5 mL × 3 of methanol.Under the optimal conditions,a simple and sensitive method for the detection of three BPs was established by high performance liquid chromatography-ultraviolet detection(HPLC-UV) with the CeDUT-52 based DSPE.The limits of detection(LOD),limits of quantitation(LOQ),accuracy and precision of the method were evaluated.The developed method showed a good linear relationship in the range of 0.3-300 μg/L for BPA and BPF,0.6-600 μg/L for BPAF with correlation coefficients(,r,),not less than 0.999 8.The LODs and LOQs were in the range of 0.1-0.2 μg/L and 0.3-0.6 μg/L,respectively.The recoveries for BPs in water samples at 3 spiked levels of 1, 5 and 10 μg/L ranged from 82.5% to 101%,with relative standard deviations(RSD) not more than 10%.The enrichment factors of the method were between 92 and 102.The proposed method was suitable for the rapid and sensitive determination of BPs in water samples.
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School of Food & Pharmaceutical Engineering, Zhaoqing University