A Fast and Simple Analysis of Glyphosate in Tea Beverages by Capillary Electrophoresis with On-Line Copper(II)-Glyphosate Complex Formation
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概要
- 論文の詳細を見る
Glyphosate is an herbicide used for many plants that can be toxic to humans in high doses. Current methods for measuring glyphosate are slow and expensive. Here we describe a fast and simple method for measuring glyphosate in tea beverages by capillary electrophoresis with on-line formation of copper(II)-glyphosate complex. The optimum running conditions were found to be 40mM acetate buffer (pH 5.0) containing 5mM CuSO_4 with an effective voltage of +15kV using a sulfonated capillary (FunCap-CE Type S) and direct UV detection at 250nm. Linearity (r^2 >0.999) was demonstrated in the range 5-1000mg/l of glyphosate. Good reproducibilities of peak area (relative standard deviation<1.2%) and migration time (relative standard deviation<0.2%) were obtained. Recovery of glyphosate was between 98 and 100%. With this method, a tea beverage that was mixed with a glyphosate formulation was successfully analyzed.
- 公益社団法人日本薬学会の論文
- 2008-10-01
著者
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Hayakawa Kazuichi
Graduate School of Natural Science and Technology, Kanazawa University
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YAMAMOTO Atsushi
Department of Surgery, Hiroshima Prefectural Akitsu Hospital
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Kodama Shuji
Toyama Inst. Of Health
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Suzuki Kentaro
Fukushima Factory Gl Sciences Inc.
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Hayakawa Kazuichi
Institute Of Medical Pharmaceutical And Health Sciences Kanazawa University
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Hayakawa Kazuichi
Graduate School Of Natural Science And Technology Faculty Of Pharmaceutical Sciences Kanazawa Univer
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Yamashita Tomohisa
Toyama Institute Of Health
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Nomura Yoko
Department Of Biological Chemistry College Of Bioscience And Biotechnology Chubu University
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Ito Yuji
Kirin Holdings Co. Ltd.
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KEMMEI Tomoko
Toyama Institute of Health
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Taga Atsushi
School of Pharmacy, Kinki University
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Chinaka Satoshi
Forensic Science Laboratory, Ishikawa Prefectural Police Headquarters
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Taga Atsushi
School Of Pharmacy Kinki University
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YAMAMOTO Atsushi
College of Bioscience and Biotechnology, Chubu University
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Yamamoto Atsushi
College Of Bioscience And Biotechnology Chubu University
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Yamamoto Atsushi
Department Of Biological Chemistry College Of Bioscience And Biotechnology Chubu University
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Chinaka Satoshi
Forensic Science Laboratory Ishikawa Prefectural Police Headquarters
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Yamamoto Atsushi
Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University
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Hayakawa Kazuichi
Graduate School of Medical Sciences, Division of Pharmaceutical Sciences, Kanazawa University
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