Abstract − Analytical Sciences, 24(8), 1053 (2008).
A Clean-up Method by Photocatalysis for HPLC Analysis of Iprodione in Dry Basil
Osamu MAEDA,*,** Chie OIKAWA,* Nobuo SHIOMI,* Akira TORIBA,** and Kazuichi HAYAKAWA**
*House Food Analytical Laboratory Inc., 1-4 Takanodai, Yotsukaido, Chiba 284-0033, Japan
**Graduate School of Natural Science and Technology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
**Graduate School of Natural Science and Technology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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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