Determination of 19 Organic Solvent Residues in Dyeing and Finishing Auxiliaries by Gas Chromatography-Mass Spectrometry
  
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KeyWord:dyeing and finishing auxiliaries  organic solvent residues  gas chromatography-mass spectrometry
  
AuthorInstitution
ZHOU Jia,TANG Juan,DING You-chao*,CAO Xi-zhong 1.江苏出入境检验检疫局工业产品检测中心;2.江苏省检验检疫科学技术研究院
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Abstract:
      A method for the determination of nineteen organic solvent residues in dyeing and finishing auxiliaries by gas chromatography-mass spectrometry(GC-MS) was developed.Sample was acidified with formic acid,and then esterified with ethanol.After extraction with hexane,the qualitative and quantitative analyses were performed by the optimized GC-MS.The limits of detection for nineteen organic solvent residues were between 0.03 mg/kg and 0.1 mg/kg.The calibration curves for nineteen organic solvent residues showed good linearity in the concentration range of 0.5-50 mg/L with their correlation coefficients not less than 0.999.The average recoveries of the analytes in different negative samples at different spiked levels ranged from 94.3% to 101.3%,with relative standard deviations(RSDs) less than 8.7%.The established method was reliable,accurate and sensitive,and was suitable for the determination of nineteen organic solvent residues in dyeing and finishing auxiliaries.
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