A Simplified HPLC Procedure for the Determination of Glyphosate in Soybeans Employing Postcolumn Fluorescence Labeling.

Takano, Ichiro; Nagayama, Toshihiro; Kobayashi, Masaru; Ito, Masako; Tamura, Yasuhiro; Takada, Chieko; Kimura, Naoko; Kitayama, Kyoko; Yasuda, Kazuo

doi:10.3358/shokueishi.41.242

J. Food Hyg. Soc. Jpn

2000

DOI: 10.3358/shokueishi.41.242

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A Simplified HPLC Procedure for the Determination of Glyphosate in Soybeans Employing Postcolumn Fluorescence Labeling.

Ichiro Takano¹,

Toshihiro Nagayama²,

Masaru Kobayashi³

et al.

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Analysis of Glyphosate and Its Metabolite, Aminomethylphosphonic Acid, in Agricultural Products by HPLC.

Takahashi¹,

Horie²,

Aoba³

2001

Journal of the Food Hygienics Society of Japan

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An analytical method for residues of the herbicide glyphosate [GLY: N-(phosphonomethyl)-glycine] and its metabolite (AMPA: aminomethylphosphonic acid) in agricultural products is described. GLY and AMPA were extracted with water (soybeans extract was moreover treated with acetone), and purified by application to a dual mini-cartridge column (octadecyl-bonded silica gel and cation-exchange silica gel) system. GLY was derivatized with 9-fluorenylmethylchloroformate, and determined by HPLC with fluorescence detection. AMPA determination was performed by HPLC employing postcolumn fluorogenic labeling with o-phthalaldehyde-mercaptoethanol. The detection limits for GLY and AMPA were 0.04 mg/g (soybean: 0.08 mg/g), and both recoveries from samples to which the compounds were added at the 0.2 mg/g level (soybean: 1.0 mg/g) were more than 65ΐ.

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Analysis of Glyphosate and Its Metabolite, Aminomethylphosphonic Acid, in Agricultural Products by HPLC.

Takahashi¹,

Horie²,

Aoba³

2001

Journal of the Food Hygienics Society of Japan

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show abstract

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A Simplified HPLC Procedure for the Determination of Glyphosate in Soybeans Employing Postcolumn Fluorescence Labeling.

Cited by 1 publication

References 5 publications

Analysis of Glyphosate and Its Metabolite, Aminomethylphosphonic Acid, in Agricultural Products by HPLC.

Analysis of Glyphosate and Its Metabolite, Aminomethylphosphonic Acid, in Agricultural Products by HPLC.

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