[1]李 萍,赵 文,金珊珊,等.顶空气相色谱法测定水相中环氧氯丙烷[J].常州大学学报(自然科学版),2011,(01):71-73.
　LI Ping,ZHAO Wen,JIN Shan-shan,et al.Determinnation of Epichlorohydrin in Water by Headspace Gas Chromatography[J].Journal of Changzhou University(Natural Science Edition),2011,(01):71-73.
点击复制

顶空气相色谱法测定水相中环氧氯丙烷()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2011年01期
页码:
71-73
栏目:
出版日期:
2011-01-01

文章信息/Info

Title:
Determinnation of Epichlorohydrin in Water by Headspace Gas Chromatography
作者:
李 萍; 赵 文; 金珊珊; 郭登峰
常州大学 石油化工学院,江苏 常州 213164
Author(s):
LI Ping; ZHAO Wen; JIN Shan-shan; GUO Deng-feng
School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China
关键词:
顶空气相色谱;  环氧氯丙烷;  分析
Keywords:
headspace gas chromatography;  epichlorohydrin;  analysis
分类号:
TQ 415
文献标志码:
A
摘要:
采用顶空气相色谱法测定水相中的环氧氯丙烷的含量,对顶空色谱分析条件如平衡时间、平衡温度、盐析剂用量以及气液相比等因素进行了研究。结果表明:在平衡时间为20 min,平衡温度为80 ℃,盐析剂为氯化钠且加入量为7 g,气液相比为1:2的条件下,水相中环氧氯丙烷响应值最高。环氧氯丙烷质量浓度在0.001-100 μg/mL呈良好线性关系,线性方程为y=37.39x+47.79,相关系数为0.999 4,方法的最低检出质量浓度达0.001 μg/mL,加标回收率为92.54%-106.8%。该分析方法简单、快速、准确、灵敏度高,对测定水中的环氧氯丙烷的含量具有重要的意义。
Abstract:
A method for determination of epichlorohydrin in water using headspace gas chromatography have been studied. The optimal condition for headspace equilibrium was as follows: equilibrium time was 20 min, equilibrium temperature was 80 ℃, 7 g sodium chloride was added as salting agent and gas-liquid proportion was 1:2 and epichlorohydrin in sample had the highest response value on gas chromatography. The linearity was good at 0.001-100 μg/mL for epichlorohydrin, the linear equation was y=37.39x+47.79 and the linear correlation coefficient was 0.999 4.The average recovery ranged between 93.1%-102.9% and the detecting limit was 0.001 μg/mL.The method proved sensitive,accurate,reproducible and suitable for determination of epichlorohydrin in water.

参考文献/References:

[1]Hachenbefg H,Scimidt A P.Gas Chromatographic Headspace Analysis[M].London:Galliarol Britain,1977.
[2]Penton Z.Optimization of conditions in static headspace GC chromatograph[J].Water Research,1992,15(2):834-836.
[3]朱铭洪.水中环氧氯丙烷测定条件的探讨[J].江苏预防医学,2008(01):64-65.
[4]聂颖.环氧氯丙烷的生产工艺与改进[J].化工中间体,2004,1(7):33-35.
[5]国家环境局.水和废水监测分析方法[M].北京:中国环境科学出版社,1989:378-329.
[6]王永华.分配常数及气液相比对顶空气相色谱分析灵敏度的影响[J].北京大学学报(自然科学版),2003,39(6):897-900.

备注/Memo

备注/Memo:
作者简介:李萍(1984-),女,江苏泰州人,硕士生; 通讯联系人:郭登峰。
更新日期/Last Update: 2011-01-01