Analysis of Chlorothalonil by Liquid Chromatography/Mass Spectrometry Using Negative-ion Atmospheric Pressure Photoionization | Zendy

Atsushi Yamamoto | Zendy; Iori Miyamoto | Zendy; Mikiya Kitagawa | Zendy; Hiroshi Moriwaki | Zendy; Hidekazu Miyakoda | Zendy; Hideya Kawasaki | Zendy; Ryuichi Arakawa | Zendy

Open Access

Analysis of Chlorothalonil by Liquid Chromatography/Mass Spectrometry Using Negative-ion Atmospheric Pressure Photoionization

Author(s) -

Atsushi Yamamoto,

Iori Miyamoto,

Mikiya Kitagawa,

Hiroshi Moriwaki,

Hidekazu Miyakoda,

Hideya Kawasaki,

Ryuichi Arakawa

Publication year - 2009

Publication title -

analytical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.392

H-Index - 73

eISSN - 1348-2246

pISSN - 0910-6340

DOI - 10.2116/analsci.25.693

Subject(s) - chlorothalonil , chemistry , mass spectrometry , chromatography , detection limit , orbitrap , aqueous solution , photoionization , analytical chemistry (journal) , ion , fungicide , ionization , organic chemistry , botany , biology

A highly sensitive and simple method for the analysis of chlorothalonil was presented using a liquid chromatograph/mass spectrometer equipped with an atmospheric pressure photoionization (APPI) source. Chlorothalonil is one of the most extensively used fungicides. The major degraded product of chlorothalonil, 4-hydroxy-2,5,6-trichloroisonaphthonitrile (4OH-TPN), was also quantified with sensitivity similar to that of chlorothalonil. The method was applied to the determination of chlorothalonil in aqueous environment and food samples. The method detection limits (MDLs) of chlorothalonil for aqueous samples and cucumber were determined to be 0.18 and 3.2 ng g(-1), respectively. At several estuarial locations, chlorothalonil was detected with a maximum of 1.1 ng L(-1). On the other hand, 4OH-TPN was detected not from estuaries but from rivers with a maximum of 14 ng L(-1).

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