Determination of Triazole Fungicides Using Hollow Fiber Liquid Phase Microextraction Prior to Gas Chromatography鈥揗ass Spectrometry Analysis

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• 作者：Ali Sarafraz-Yazdi ; Hakimeh Assadi ; Wan Aini Wan Ibrahim
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：February 22, 2012
• 年：2012
• 卷：51
• 期：7
• 页码：3101-3107
• 全文大小：281K
• 年卷期：v.51,no.7(February 22, 2012)
• ISSN：1520-5045

文摘

A two phase hollow fiber liquid phase microextraction (HF-LPME) and gas chromatography mass spectrometry (GC-MS) method for the separation and determination of triazole fungicides, namely, penconazole, hexaconazole, diclobutrazole and diniconazole, is described. The extraction conditions were optimized for the four triazole fungicides as follows: extractant solvent, toluene; extraction time, 20 min; stirring rate, 720 rpm; no salt addition; and no pH adjustment. Under the optimal extraction conditions, the method showed good linearity (r² = 0.997鈥?.999), acceptable reproducibility (RSD% = 6鈥?%), low limit of detection (0.3鈥?.8 渭g路L^鈥?), and satisfactory relative recoveries. The linear range is 1鈥?000 渭g路L^鈥?. The developed HF-LPME method was applied for the determination of triazole fungicides in farm, river, and tap water and also grape juice samples.