丁炔二醇中微量甲醛的分光光度测定研究  

Determination of Micro Amount Formaldehyde in Butinedialcohol by Spectrophotometry of MBTH

作　　者：夏钦 张春玲 黄玉才[1,2] 徐大军 文智彬[1,2] 霍晟 

机构地区：[1]东北制药总厂 [2]沈阳化工学院

出　　处：《沈阳化工学院学报》1998年第4期262-266,共5页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：用３甲基２苯并噻唑酮腙（ＭＢＴＨ）作显色剂，用分光光度法测定了丁炔二醇中微量甲醛．表观摩尔吸光系数为５．１７×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，最低检测限为４．８μｇ／Ｌ，加标回收率９９％以上，相对标准偏差小于３％．醛含量在０～１．４ｍｇ／Ｌ范围服从比尔定律．方法重复性好，灵敏度高，操作简便，能满足丁炔二醇质量控制分析要求．Spectrophotometry of 3 methyl 2 benzothiazolinone hydrazone (MBTH) is used for determination micro amount of formaldehyde in butinedialcohol.The molar absorptivity is 5.17×10 4 L·mol -1 ·cm -1 with detection limit of 4.8 μg/L. The recovery is more than 99 % and the relative standard deviation less than 3 %. Beer's law is obeyed in the range of 0～1.4 mg/L. This method is simple and convenient, sensitive and accurate. It is useful for controlling the quality of butinedialcohol products.

关 键 词：丁炔二醇 分光光度法 甲醛 

分 类 号：O657.3[理学—分析化学] TQ223.162[理学—化学]