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| Determination of 15 Organic Solvents Residues in Food Additives by Headspace-Gas Chromatography |
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| DOI： |
| KeyWord:headspace-gas chromatography food additives organic solvents residues |
| Author | Institution |
| CAO Shu-rui*,ZHU Ming,GAO Xiao-li,WEN Yao,CHENG Ni-li,XI Cun-xian,TANG Bo-bin,ZHENG Xiao-ling |
1.重庆出入境检验检疫局检验检疫技术中心;2.贵州出入境检验检疫局检验检疫技术中心;3.重庆市化工职业技术学院;4.重庆医科大学药学院 |
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| Abstract: |
| An analytical method for the simultaneous determination of 15 kinds of organic solvents residues in food additives based on headspace-gas chromatography was established.The residual organic solvents in different food additives were extracted with N,N-dimethylformamide using centrifuge tubes.To achieve the optimum conditions for the analysis,several parameters including the extraction solvents,extraction method,equilibrium temperature and equilibrium time were optimized.The results showed that there existed good linearities for the solvent residues in the respective concentration ranges with their correlation coefficients no less than 0.999 8.The limits of quantification for the target compounds were 10.0 mg/kg except that those for pyridine and chloroform were 20.0 mg/kg.The recoveries for 15 organic solvents residues were in the range of 90.6%-109.1%with relative standard deviations(RSDs) of 0.1%-7.2%.This method is sensitive and accurate,and is suitable for the determination of organic solvents residues in food additives. |
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