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A Clean-up Method by Photocatalysis for HPLC Analysis of Iprodione in Dry Basil

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Abstract

Titanium dioxide was used as a photocatalyst to decompose interfering substances for a quantitative analysis of a fungicide (iprodione) in dry basil by HPLC. A quartz vial containing basil extract and titanium dioxide was irradiated with black light. The interfering substances were almost completely decomposed by 180 min of irradiation, whereas 88.3% of iprodione remained. The recovery of iprodione was 102.6% by the proposed method in basil extracts. This may have been due to different decomposition rates of the analyte and interfering substances.

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Authors and Affiliations

  1. House Food Analytical Laboratory Inc., 1-4 Takanodai, 284-0033, Chiba, Yotsukaido, Japan

    Osamu Maeda, Chie Oikawa & Nobuo Shiomi

  2. Graduate School of Natural Science and Technology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Japan

    Akira Toriba & Kazuichi Hayakawa

Authors
  1. Osamu Maeda
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  2. Chie Oikawa
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  3. Nobuo Shiomi
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  4. Akira Toriba
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  5. Kazuichi Hayakawa
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Correspondence to Osamu Maeda.

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Maeda, O., Oikawa, C., Shiomi, N. et al. A Clean-up Method by Photocatalysis for HPLC Analysis of Iprodione in Dry Basil. ANAL. SCI. 24, 1053–1055 (2008). https://doi.org/10.2116/analsci.24.1053

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  • DOI: https://doi.org/10.2116/analsci.24.1053

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