| 1-(2-苯并噻唑)-3-(4-硝基苯)-三氮烯的合成及其与镉(Ⅱ)的显色反应研究 |
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| 引用本文： | 杨明华,龚楚儒,李功虎,金传明.1-(2-苯并噻唑)-3-(4-硝基苯)-三氮烯的合成及其与镉(Ⅱ)的显色反应研究[J].分析试验室,1999,18(3). |
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| 作者姓名： | 杨明华 龚楚儒 李功虎 金传明 |
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| 作者单位： | 1. 湖北师范学院化学系,黄石,435002
2. 中科院成都有机所 |
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| 摘 要： | 报道了１－（２－苯并噻唑）－３－（４－硝基苯）－三氮烯（ＢＴＮＰＴ）的合成及与镉（Ⅱ）的显色反应研究。在ＴｒｉｔｏｎＸ－１００的存在下，ｐＨ１１．６时，镉（Ⅱ）与ＢＴＮＰＴ形成摩尔比＝１∶２型黄色络合物，在４３５ｎｍ处有一最大正吸收，在５３０ｎｍ处有最大负吸收。以４３５ｎｍ为参比波长，５３０ｎｍ为测量波长进行双波长测定，表观摩尔吸光系数为２．５２×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，线性范围为０～１０μｇ／２５ｍＬ。已用于测定地面水和人发中的镉含量。
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| 关 键 词： | 1-(2-苯并噻唑)-3-(4-硝基苯)-三氮烯 显色反应 镉 |
Synthesis of 1-(2-Benzothiazole)-3-(4-Nitrophenyl)- Triazene and Studies on Its Colour Reaction with Cadmium |
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| YANG Ming-hua,GONG Chu-ru,LI Gong-hu,JIN Chuang-ming.Synthesis of 1-(2-Benzothiazole)-3-(4-Nitrophenyl)- Triazene and Studies on Its Colour Reaction with Cadmium[J].Chinese Journal of Analysis Laboratory,1999,18(3). |
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| Authors: | YANG Ming-hua GONG Chu-ru LI Gong-hu JIN Chuang-ming |
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| Abstract: | his paper reports the
synthesis of the new reagent 1(2benzothiazole)3(4nitrophenyl) triazene(BTNPT) and the colour
reaction of BTNPT with cadium .In the presence of Triton X100,the reagent forms a yellow
complex with cadmium in the molar ratio of 1:2 .The molar absorptivity is 2.52105
Lmol-1cm-1by dualwavelength spectrophotometry with reference wavelength of 435nm and
determination wavelength of 530nm .Beers law is obeyed in the range of 010g/25mL.Trace
cadmium in human hair and water has been determined by this method with satifactory
results. |
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| Keywords: | benzothiazole)3(4nitrophenyl) triazene colour reaction cadmium |
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