中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 6种有机溶剂萃取三氯甲烷效果的比较研究 安徽农业科学 2009,37 (24) 11693-11695+11708
Position: Home > Articles > Comparative Research on the Extraction Effect of 6 Organic Solvents on Trichloromethane Journal of Anhui Agricultural Sciences 2009,37 (24) 11693-11695+11708

6种有机溶剂萃取三氯甲烷效果的比较研究

作  者：
李梦红;诸葛玉平;刘爱菊;刘家弟;尚贞晓
单  位：
山东农业大学资源与环境学院;山东理工大学资源与环境工程学院
关键词：
液液萃取;气相色谱法;三氯甲烷;萃取剂
摘  要：
[目的]为工业废水中三氯甲烷的萃取与测定提供方法支持。[方法]分别用石油醚、四氯化碳、二氯甲烷、二硫化碳、环己烷、苯萃取三氯甲烷,并配制其三氯甲烷标准系列溶液,进而确定三氯甲烷的最佳萃取方法。[结果]6种萃取剂和三氯甲烷之间的分离效果均较好,采样时间8 min左右,三氯甲烷的出峰时间为5～6 min。6种标准溶液的浓度与其三氯甲烷峰面积的相关系数分别为0.999 6、0.999 2、0.987 6、0.977 8、0.999 0和0.995 3。6种萃取液中三氯甲烷的平均含量分别为0.89、0.86、0.75、0.75、0.85和0.82 mg/ml,其变异系数分别为1.29%、2.07%、4.29%、4.67%、2.46%和3.36%。6种萃取液的回收率分别为98.21%、90.26%、78.92%、75.63%、88.45%和83.52%。6种萃取液的最低检出限分别为5.56×10-3、1.84×10-2、9.12×10-2、9.58×10-2、3.14×10-2和4.98×10-2mg/L。[结论]石油醚的萃取效果最好,二硫化碳的萃取效果最差。
译  名：
Comparative Research on the Extraction Effect of 6 Organic Solvents on Trichloromethane
作  者：
LI Meng-hong et al (College of Resources and Environment Engineering,Shandong University of Technology,Zibo,Shandong 255049)
关键词：
Liquid-liquid extraction;Gas chromatography;Trichloromethane;Extractant
摘  要：
[Objective] The aim was to provide methodological support for extracting and determining the trichloromethane in industrial waste water.[Method] The trichloromethane was extracted with petroleum ether,carbon tetrachloride,dichloromethane,carbon disulfide,cyclohexane and benzene resp.and its standard serial solutions were prepared so as to ascertain its optimum extraction method.[Result] The separation effects on trichloromethane from 6 extractants were better,the sampling time was about 8 min and the peak flowing out of trichloromethane was 5-6 min.The correlation coefficients between the concn.of 6 standard solutions and the peak area of trichloromethane were 0.999 6,0.999 2,0.987 6,0.977 8,0.999 0 and 0.995 3 resp.The average contents of trichloromethane in 6 extracts were 0.89,0.86,0.75,0.75,0.85 and 0.82 mg/ ml and their variation coefficients were 1.29%,2.07%,4.29%,4.67%,2.46% and 3.36% resp.The recoveries of 6 extracts were 98.21%,90.26%,78.92%,75.63%,88.45% and 83.52% resp.and their lowest detection limits were 5.56×10-3,1.84×10-2,9.12×10-2,9.58×10-2,3.14×10-2 and 4.98×10-2 mg/L resp.[Conclusion] The extraction effect of petroleum ether was best and that of carbon disulfide was poorest.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46