A simple and sensitive vortex-assisted ionic liquid-dispersive microextraction and spectrophotometric determination of selenium in food samples

被引：38
作者：
Bagda, Esra [1 ]
Tuezen, Mustafa [2 ]
机构：
[1] Cumhuriyet Univ, Fac Pharm, TR-58140 Sivas, Turkey
[2] Gaziosmanpasa Univ, Fac Sci & Arts, Dept Chem, TR-60250 Tokat, Turkey
来源：
FOOD CHEMISTRY | 2017年 / 232卷
关键词：
Selenium; Vortex assisted; Ionic liquid; Microextraction; Spectrophotometer; Food samples; ATOMIC-ABSORPTION-SPECTROMETRY; SOLID-PHASE MICROEXTRACTION; INORGANIC SELENIUM; HYDRIDE-GENERATION; FLUORESCENCE SPECTROMETRY; WATER SAMPLES; ICP-OES; SPECIATION; EXTRACTION; TRACE;
D O I：
10.1016/j.foodchem.2017.03.104
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In the present study, a novel and eco-friendly vortex-assisted ionic liquid-based microextraction method was developed for the determination of selenium in food. The microextraction method is based on the liberation of iodine in the presence of selenium; the liberated iodine reacts with I to form I-3. Anionic I-3 reacts with cationic crystal violet dye, and the product is extracted into 1-hexyl-3-methylimidazolium hexafluorophosphate phase in the presence of Triton X-114. The proposed method is linear in the range of 2.0-70 mu g L (1) and has a detection limit of 9.8 x 10 (2) mu g L (1). Relative standard deviations were 3.67% and 2.89% for the five replicate measurements of 14 and 35 mu g L (1) Se(IV), respectively. The proposed method was successfully applied to different food samples (NIST SRM 2976 mussel tissue, pepper, ginger, wheat flour, red lentil, traditional soup, cornflour, cornstarch, and garlic) after microwave digestion. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：98 / 104
页数：7
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