Highly Sensitive Detection of Organophosphorus Pesticides Using 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin

被引：5
|
作者：
Murakami, Takaya [1 ]
Iwamuro, Yoshiaki [1 ]
Chinaka, Satoshi [1 ]
Takayama, Nariaki [1 ]
Komatsu, Teruyuki [2 ]
机构：
[1] Ishikawa Prefectural Police HQ, Forens Sci Lab, Kanazawa, Ishikawa 9208553, Japan
[2] Chuo Univ, Fac Sci & Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1128551, Japan
来源：
ANALYTICAL SCIENCES | 2015年 / 31卷 / 12期
关键词：
5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin; organophosphorus pesticides; UV-visible absorption spectroscopy; solvent dependence; diprotonation; VOLATILE ORGANIC-COMPOUNDS; CHEMICAL WARFARE AGENTS; PORPHYRIN DERIVATIVES; MASS-SPECTROMETRY; WATER; IMMUNOASSAY; SIMULANT; FILMS;
D O I：
10.2116/analsci.31.1325
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We describe a unique UV-visible absorption spectral property of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin (THPP) in the presence of organophosphorus (OP) pesticides. Upon titrating each 16 among total 40 different OP pesticides, the Soret band was significantly red-shifted, and a very intense Q band appeared. They were attributed to the diprotonation of THPP. A suitable solvent for this reaction was determined to be methanol. THPP would become a potential sensor molecule used to detect OP pesticides with high sensitivity in the concentration range of 10(-6) - 10(-4) M.
引用
收藏
页码：1325 / 1328
页数：4
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