文献类型：期刊文献

中文题名：meso-四(3-三氟甲基苯基)卟啉与锌的微波催化显色反应的研究

英文题名：Study on the microwave catalyzed color reaction between meso-tetrakis(3-trifluoromethylphenyl) porphyrin and zinc

作者：俞善辉[1];吴继魁[2];王麟生[3];吴斌才[3]

机构：[1]华东理工大学化学系,上海200237;[2]上海水产大学食品学院,上海200090;[3]华东师范大学化学系,上海200062

年份：2008

卷号：30

期号：12

起止页码：881

中文期刊名：化学试剂

外文期刊名：Chemical Reagents

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：上海水产大学优秀青年教师跟踪项目(A-0212-06-0044)

语种：中文

中文关键词：meso-四(3-三氟甲基苯基)卟啉;锌(Ⅱ);微波;显色反应;分光光度法

外文关键词：meso-tetrakis （3-trifluoromethylphenyl） porphyrin ; zinc （ Ⅱ ） ; microwave ; color reaction ; spectrophotometric method

摘要：研究了用新显色剂meso-四（3-三氟甲基苯基）卟啉（T（3-TFMP）P）光度法测定痕量锌（Ⅱ）时微波对于显色反应的催化作用和微波操作条件。实验表明，在pH10．8的缓冲液、Tween-80及盐酸羟胺介质中，经微波加热50min，显色反应完全，锌（Ⅱ）量在0～4．0μg／25mL范围内具有线性关系，表观摩尔吸光系数ε429为5．13×10^5L·mol^-1·cm^-1。采用加入CyDTA进行退色光度法测定，同时加入混合掩蔽剂，可以消除大多数共存离子的干扰。方法可应用于三甘醇和保健品中痕量锌（Ⅱ）的测定。
Upon spectrophotometric testing of trace zinc （Ⅱ） using a new color reagent meso-tetrakis （3-trifluoromethylphenyl） porphyrin （T（3-TFMP） P） the impact of microwave catalyzed reaction and the microwave operating conditions on the color reaction was studied. Experiments showed that in a mixture containing a buffer solution with a pH value of 10.8, Tween-80, and hydroxylamine hydrochloride, the color reactions were realized when the mixture was heated for 50 minutes via microwave catalysis. The linear range of the amount of zinc （ Ⅱ ） thus determined was 0 - 4.0 /μg/25 mL, while the molar absorptivity ε429 was 5.13 × 10^5 L. mol^-1. cm^-1. When CyDTA was added along with a mixed screening agent during the discoloring spectrophotometric tests, the interference from most coexisting ions could be avoided. This method can be applied to the testing of trace zinc （ Ⅱ ） in triethylene glycol and health products.