Studies on Analysis of Organophosphorus, Carbamate and Pyrethroid Pesticides as well as Determination of Residual Bromine in Raw Coffee Beans

Mikako NARITA; Masahiro MIYATA; Kazumasa KAMAKURA; Yoshichika HIRAHARA; Kouichirou OKAMOTO; Masumi HASEGAWA; Satoshi KOIGUCHI; Tomoko MIYOSHI; Takayoshi YAMANA; Yasuhide TONOGAI; Yoshio ITO

doi:10.3358/shokueishi.35.371

Mikako NARITA, Masahiro MIYATA, Kazumasa KAMAKURA, Yoshichika HIRAHARA, Kouichirou OKAMOTO, Masumi HASEGAWA, Satoshi KOIGUCHI, Tomoko MIYOSHI, Takayoshi YAMANA, Yasuhide TONOGAI, Yoshio ITO

Author information

Mikako NARITA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Masahiro MIYATA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Kazumasa KAMAKURA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Yoshichika HIRAHARA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Kouichirou OKAMOTO
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Masumi HASEGAWA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Satoshi KOIGUCHI
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Tomoko MIYOSHI
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Takayoshi YAMANA
Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
Yasuhide TONOGAI
National Institute of Health Sciences
Yoshio ITO
National Institute of Health Sciences

Keywords: coffee, organophosphorus pesticides, carbamate pesticides, pyrethroid pesticides, pesticide, bromine, gas chromatography (ECD, FDD, NPD), silica gel

JOURNAL FREE ACCESS

1994 Volume 35 Issue 4 Pages 371-379_1

DOI https://doi.org/10.3358/shokueishi.35.371

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Abstract

A procedure for determination of 20 organophosphorus, 19 carbamate and 5 pyrethroid pesticides in raw coffee beans by gas chromatography was developed. Extract of coffee beans was directly analyzed for organophosphorus and pyrethroid pesticides, and purified by silica gel column chromatography before GC analysis for carbamate pesticides. No residual pesticide was detected, but much bromine was detected in 11 samples imported from 10 countries. The detection limit was 0.001ppm for organophosphorus pesticides, 0.01ppm for carbamate and pyrethroid pesticides by the proposed method, and 0.05ppm for bromide.

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