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

Takaya MURAKAMI; Yoshiaki IWAMURO; Satoshi CHINAKA; Nariaki TAKAYAMA; Teruyuki KOMATSU

doi:10.2116/analsci.31.1325

Notes

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

Takaya MURAKAMI, Yoshiaki IWAMURO, Satoshi CHINAKA, Nariaki TAKAYAMA, Teruyuki KOMATSU

著者情報

キーワード: 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin, organophosphorus pesticides, UV-visible absorption spectroscopy, solvent dependence, diprotonation

ジャーナルフリー

2015 年 31 巻 12 号 p. 1325-1328

DOI https://doi.org/10.2116/analsci.31.1325

詳細

抄録

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.

Fullsize Image

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）