食品与机械
食品與機械
식품여궤계
FOOD AND MACHINERY
2009年
4期
92-94,152
,共4页
陈志锋%程劼%孙利%雍炜
陳誌鋒%程劼%孫利%雍煒
진지봉%정할%손리%옹위
氯乙烯单体%气相色谱%食品包装材料
氯乙烯單體%氣相色譜%食品包裝材料
록을희단체%기상색보%식품포장재료
Vinyl chloride monomers,Gas chromatography%Food packaging materials
研究采用毛细管气相色谱法检测聚氯乙烯薄膜中残留的氯乙烯单体,并用气相色谱质谱法进行确证.样品中的氯乙烯单体采用静态顶空技术提取.利用极性毛细管气相色谱柱进行分离并结合氢火焰离子化检测器进行高灵敏度检测.氟乙烯单体在0.05～0.2 mg/L的浓度范围内有较好的线性关系,相关系数为0.999,相对标准偏差在3.1%以内,检测低限为0.5 mg/kg,该方法具有较好的检测精密度和灵敏度.
研究採用毛細管氣相色譜法檢測聚氯乙烯薄膜中殘留的氯乙烯單體,併用氣相色譜質譜法進行確證.樣品中的氯乙烯單體採用靜態頂空技術提取.利用極性毛細管氣相色譜柱進行分離併結閤氫火燄離子化檢測器進行高靈敏度檢測.氟乙烯單體在0.05～0.2 mg/L的濃度範圍內有較好的線性關繫,相關繫數為0.999,相對標準偏差在3.1%以內,檢測低限為0.5 mg/kg,該方法具有較好的檢測精密度和靈敏度.
연구채용모세관기상색보법검측취록을희박막중잔류적록을희단체,병용기상색보질보법진행학증.양품중적록을희단체채용정태정공기술제취.이용겁성모세관기상색보주진행분리병결합경화염리자화검측기진행고령민도검측.불을희단체재0.05～0.2 mg/L적농도범위내유교호적선성관계,상관계수위0.999,상대표준편차재3.1%이내,검측저한위0.5 mg/kg,해방법구유교호적검측정밀도화령민도.
A GC-based method for the determination of vinyl chloride monomer in poly vinyl chloride is developed. Vinyl chloride monomers is extracted by headspace technology, separated in a polar capillary gas chromatography column, and detected by FID. The developed method is of the good linearity from 0.05 to 0.2 mg/L with the correlation coefficient of 0.999. And the method is of good precision with the RSD of 3.1% and of good sensitivity with the quantitative limit of 0.5 mg/kg.
