顶空-气质联用仪检测再生聚酯纤维醛酮类化合物  

Determination of carbonyl compounds in recycled polyester fibers by HS-GC / MS

作　　者：刘敏华[1] 魏孟媛[1] 刘芳[1] 秦周燕 和杉杉 汪习[1] 

机构地区：[1]上海出入境检验检疫局工业品与原材料检测技术中心,上海200135 [2]东华大学,上海200051

出　　处：《上海纺织科技》2014年第11期15-16,24,共3页Shanghai Textile Science & Technology

摘　　要：建立了顶空气相色谱-质谱法（HS—GC—MS）测定再生聚酯纤维醛酮类化合物的方法。称取0．5g样品，在150℃下平衡30min，顶空进样进行气相色谱-质谱分析。结果显示，仪器在0．4～20mg／kg线性范围内，丁醛、戊醛、正己醛、环己酮和苯甲醛线性方程相关系数均大于0．995；方法检出限为0．4mg／kg；平均回收率为88％～103％；相对标准偏差（n=6）均小于9．5％。该方法简便、快速、准确，可用于测定聚酯类纺织产品中的醛酮类化合物。The method for determination of carbonyl compounds in recycled polyester fibers by headspace-gas chromatography-mass spectrometry is established. The 0.5g sample is injected into the gas chromatography-mass spectrometry （ GC - MS） for analysis after equilibrating at 150℃ for 30 min. The calibration curve of carbonyl compounds is linear in the range of 0.4 - 20mg/kg, and the correlation eoefficicntr is more than 0. 995. The average recovery of carbonyl compounds is in the range of 88% - 103% with relative standard deviations （ n =6） less than 9.5% in three levels respectively. The detection limit of the method is 0.4 mg/kg. The method is simple, convenient and accurate which is suitable for determining the residual carbonyl compounds in recycled polyester fibers.

关 键 词：气相色谱-质谱法 再生纤维 聚酯纤维 醛酮类化合物 

分 类 号：TS107.2[轻工技术与工程—纺织工程] O657.63[轻工技术与工程—纺织科学与工程]