气相色谱法测定橡胶制品中短链氯化石蜡含量  

GC Determination of Short-Chain Chlorinated Paraffin in Rubber Products

作　　者：袁丽凤[1] 邬蓓蕾[1] 罗川[1] 徐善浩[1] 华正江[1] 王豪[1] 

机构地区：[1]宁波出入境检验检疫局,宁波315012

出　　处：《理化检验（化学分册）》2012年第8期920-922,925,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：提出了气相色谱法测定橡胶制品中短链氯化石蜡(C_(10)～C_(13))含量的方法。样品经正己烷丙酮(1+1)混合溶液超声提取,采用HP-5石英毛细管色谱柱(30 m×0.35 mm,0.25μm)分离,电子捕获检测器检测。短链氯化石蜡的质量浓度在100 mg·L^1以内与其峰面积呈线性关系.测定下限为20 mg·kg^(-1)。方法的回收率在92.4%～100.4%之间,相对标准偏差(n=6)在1.8%～4.5%之间。The contents of short-chain chlorinated paraffin （C10--C13 ） in rubber products were determined by CA2 with electron capture detector. The sample was extracted ultrasonically with a mixture of n-hexane and acetone （lq-1） and separated on HP-5 quartz capillary column （30 m × 0. 35 mm, 0. 25 μm）. Linear relationship between values of peak area and mass concentration of short-chain chlorinated paraffin was obtained in the range within 100 mg· L-1 , with lower limits of determination of 20 mg · kg-1 Values of recovery found were in range of 92.4%-100. 4%, and values of RSD＇s （n=6） found were in range of 1.8%-4. 5%.

关 键 词：气相色谱法 短链氯化石蜡 橡胶制品 

分 类 号：O657.7[理学—分析化学]