| 一种用于有机溶剂中含水量检测的甲基吡啶盐 |
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| 引用本文： | 张鸣语,庄朱莉,马晓东,蔡鑫佳,乔雨,朱琳甲,裘佳欣,唐智慧,肖海波.一种用于有机溶剂中含水量检测的甲基吡啶盐[J].上海师范大学学报(自然科学版),2014,43(6):635-640. |
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| 作者姓名： | 张鸣语 庄朱莉 马晓东 蔡鑫佳 乔雨 朱琳甲 裘佳欣 唐智慧 肖海波 |
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| 作者单位： | 上海师范大学生命与环境科学学院; |
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| 基金项目： | 上海师范大学重点学科项目(DZL123);上海市教委科研创新项目(13ZZ105);上海师范大学大学生创新创业活动计划项目 |
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| 摘 要： | 以2,6-二甲基吡啶为原料,通过氧化、酯化、羟甲基化、卤代、Wittig反应,最后进行甲基化反应得到甲基吡啶盐.该吡啶盐具有明显的溶致变色现象,可用于普通有机溶剂中含水量的检测,其中在四氢呋喃中水含量的检出极限(DL)为0.0293%,优于目前的文献报道值.通过非线性拟合得出了可见光区域的最大吸收波长变化与含水量的方程式,根据最大吸收波长的数值可以直接算出溶剂中的含水量,具有很好的实用性.此外,还具有水溶性好、灵敏度高、响应迅速等一系列优点,具有很好的应用前景.
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| 关 键 词： | 吡啶盐 有机溶剂 水含量 检测 |
| 收稿时间： | 2014/10/29 0:00:00 |
A novel methyl pyridinium salt for the detection of water content in organic solvents |
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| ZHANG Mingyu,ZHUANG Zhuli,MA Xiaodong,CAI Xinji,QIAO Yu,ZHU Linji,QIU Jiaxin,TANG Zhihui and XIAO Haibo.A novel methyl pyridinium salt for the detection of water content in organic solvents[J].Journal of Shanghai Normal University(Natural Sciences),2014,43(6):635-640. |
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| Authors: | ZHANG Mingyu ZHUANG Zhuli MA Xiaodong CAI Xinji QIAO Yu ZHU Linji QIU Jiaxin TANG Zhihui and XIAO Haibo |
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| Institution: | ZHANG Mingyu;ZHUANG Zhuli;MA Xiaodong;CAI Xinjia;QIAO Yu;ZHU Linjia;QIU Jiaxin;TANG Zhihui;XIAO Haibo;College of Life and Environmental Sciences,Shanghai Normal University; |
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| Abstract: | A novel pyridinium salt, TM was synthesized from 2,6-dimethylpyridin. TM exhibits pronounced negative solvato- chromism and possesses high absorption spectral sensitivities to water content changes. TM could be used to measure the water content in organic solvents such as THF, 1,4-dioxane, acetone, and methanol. The detection limit was 0.04% for THF. The cali- bration curve for the determination of water in THF was obtained. TM exhibited high selectivity and sensitivity in the absorbanee detection of water in organic solvents. |
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| Keywords: | pyridinium salt organic solvent water content detection |
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