Determination of 12 Persistent Organic Pollutants in Highly Active Dry Yeast Powder by Accelerated Solvent Extraction-QuEChERS

doi:10.3969/j.issn.1673-1689.2018.02.011

Home > Archive>Volume 37, Issue 2, 2018 >185-190. DOI:10.3969/j.issn.1673-1689.2018.02.011

Determination of 12 Persistent Organic Pollutants in Highly Active Dry Yeast Powder by Accelerated Solvent Extraction-QuEChERS
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                        10.3969/j.issn.1673-1689.2018.02.011
                    
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A method for the simultaneous determination of 12 persistent organic pollutants（POPs） for example hexachlorobenzene，α-666，heptachlor，etc in highly active dry yeast powder was developed using accelerated solvent extraction（ASE）-QuEChERS-gas chromatography-mass. The Sample was extracted by acetonitrile with accelerated solvent extraction apparatus，and then cleaned up by PSA. The qualification and quantification of target compound were performed by gas chromatography-mass in selected ion monitoring mode（GC-MS-SIM）.The results show that the 12 POPs were linear in the range of 0.025~2.500 μg/mL with good correlation coefficients（R2≥0.992）. The average recoveries of the 12 POPs in highly active dry yeast powder were 74.5%~ 111.7 % with relative standard deviations（RSDs，n=6） of 3.1%~11.3%，at the spiked level of 0.05，0.25，1.00 mg/kg. The limits of detection of the method（LODs）were 0.002~0.009 mg/kg. The method is convenient operation，rapid，saving on solvent ，could meet determination of 12 POPs residual in highly active dry yeast powder.

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LI Fang, SU Youzhi, LI Yanmei, LEI Hongqin, MENG Ru, CHU Xiaogang. Determination of 12 Persistent Organic Pollutants in Highly Active Dry Yeast Powder by Accelerated Solvent Extraction-QuEChERS[J]. Journal of Food Science and Biotechnology,2018,37(2):185-190.

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Online: April 03,2018
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