气相色谱-质谱法测定纺织品中可萃取铬  

Determination of Extractable Chromium in Textiles by GC-MS

作　　者：陈海相[1] 茅文良[1] 王炳辉[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018

出　　处：《现代纺织技术》2010年第6期44-48,共5页Advanced Textile Technology

摘　　要：采用气相色谱-质谱法测定纺织品中的可萃取铬。纺织品萃取液用亚硫酸钠还原,然后与三氟乙酰丙酮反应生成具有可挥发性和热稳定性的三氟乙酰丙酮铬（Ⅲ）螯合物,以选择离子模式（SIM）进行测定。该方法的选择性好、灵敏度高,相关系数R=0.9950,回收率为92.5%~100.3%,测定低限为0.04mg/kg（织物）。The gas chromatography-mass spectrometry was used for determination of extractable chromium in textiles.Reduced by sodium sulfite,extract solution of textiles was reacted with trifluoroacetylacetone to form a derivative of chromium trifluoro-acetylacetonate with volatility and thermal stability.Extractable chromium in textiles was determined in selective ion mode（SIM）.The method was selective and sensitive.The linear coefficient R was 0.9950,the recycle percentage was in the range of 92.5%~100.3%,and the lower limit of detection was 0.04mg/kg（textiles）.

关 键 词：纺织品 气相色谱-质谱(GC-MS) 可萃取铬 三氟乙酰丙酮 

分 类 号：O657[理学—分析化学] TS101.9[理学—化学]