HS-GC法测定八甲基环四硅氧烷、十甲基环五硅氧烷和十二甲基环六硅氧烷  

Determination of octamethylcyclotetrasiloxane,decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane by HS-GC method

作　　者：卢科 许义 黄飞 LU Ke;XU Yi;HUANG Fei(Hangzhou Transfar Fine Chemical Co.Ltd.,Hangzhou 311215,China)

机构地区：[1]杭州传化精细化工有限公司,浙江杭州311215

出　　处：《印染助剂》2022年第11期55-59,共5页Textile Auxiliaries

基　　金：推荐性国家标准制定计划GB/T 40323—2021。

摘　　要：建立了静态顶空-气相色谱法(HS-GC)同时测定纺织染整助剂中八甲基环四硅氧烷(D4)、十甲基环五硅氧烷(D5)和十二甲基环六硅氧烷(D6)含量的方法。优化了样品预处理条件,考察了色谱条件对D4、D5、D6响应情况的影响,采用外标法进行定量。结果表明,D4、D5、D6在10~1000 mg/L均有良好的线性,相关系数R2大于等于0.9993,加标回收率为90.0%~101.1%,相对标准偏差均不大于3.5%。A method was established to determine the octamethylcyclotetrasiloxane(D4),decamethylcyclopentasiloxane(D5)and dodecamethylcyclohexasiloxane(D6)by HS-GC.The sample pretreatment conditions were optimized,and the signals of D4,D5 and D6 were studied with different chromatographic conditions,and quantified by external standard method.The results indicated that the calibration curves of D4,D5,D6 showed good linear relationship between 10~1000 mg/L.The correlation coefficients of R2 value were all greater than 0.9993,the recoveries were between 90.0%~101.1%,the relative standard deviations were lower than 3.5%.

关 键 词：静态顶空-气相色谱 八甲基环四硅氧烷 十甲基环五硅氧烷 十二甲基环六硅氧烷 

分 类 号：O657[理学—分析化学]