第 48 卷第 4 期 |  | Vol. 48 No. 4 | 2018 年 8 月 | Aug 2018 |
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所屬欄目:分析與測試
雙氯甲酸二甘醇酯中光氣的測定 |
周錦萍1,2,李 萍1,2,王 燕1,2,高云英1,2
(1. 湖南化工研究院有限公司,國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410014;2.農用化學(xué)品湖南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014) |
摘 要:基于雙氯甲酸二甘醇酯中光氣與甲醇鈉的甲醇溶液反應生成碳酸二甲酯,以氯苯為內標,采用氣相色譜內標法測定雙氯甲酸二甘醇酯中光氣含量。方法的線(xiàn)性回歸方程為y=6.247 9x + 0.019 7,相關(guān)系數為r2=0.999 8;回收率98.273%~101.53%;標準偏差為0.000 84,變異系數為1.17%。 |
關(guān)鍵詞:光氣;雙氯甲酸二甘醇酯;氣相色譜 |
中圖分類(lèi)號:O657.7+1 文獻標識碼:A 文章編號:1009-9212(2018)04-0067-03 |
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Determination of Phosgene in Diethyleneglycol-bis-chloroformate |
ZHOU Jin-ping1,2, LI Ping1,2, WANG Yan1,2,GAO Yun-ying1,2
(1. National Engineering Research Center for Agrochemicals, Hunan Research Institute of Chemical Industry, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China) |
Abstract:Phosgene reacted with sodium methoxide to form dimethyl carbonate in methanol at low temperature. Chlorobenzene was used as internal standard, the content of phosgene in diethyleneglycol-bis-chloroformate was determined by internal standard method of GC. The experimental date showed that this method had a linear equation of y=6.247 9x+0.019 7, r2=0.999 8, a recovery of 98.27%~101.53%, a RSD of 0.000 84, and the coefficient of variation of 1.17%. |
Key words:phosgene; diethyleneglycol-bis-chloroformate; GC |
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作者簡(jiǎn)介:周錦萍(1978-),男,湖南長(cháng)沙人,碩士,研究方向:農藥及精細化工中間體的分析。
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收稿日期:2018-06-12
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