Analysis of 5 Dyes Residues in Navel Orange with Temperature-assisted Ionic Liquid Dispersive Liquid-liquid Microextraction and High Performance Liquid Chromatography Detection
10.11895/j.issn.0253-3820.140200
- VernacularTitle:温控离子液体分散液液微萃取结合高效液相色谱法检测脐橙中染色剂残留
- Author:
Yaohai ZHANG
;
Xuelian ZHANG
;
Qiyang ZHAO
;
Weijun CHEN
;
Chengqiu WANG
;
Aihua CHEN
;
Bining JIAO
- Publication Type:Journal Article
- Keywords:
Quick-easy-cheap-effective-rugged and safe method;
Dispersive liquid-liquid microextraction;
Ionic liquid;
High performance liquid chromatography;
Dyes
- From:
Chinese Journal of Analytical Chemistry
2014;(10):1434-1440
- CountryChina
- Language:Chinese
-
Abstract:
A fast method composed of the quick, easy, cheap, effective, rugged and safe ( QuEChERS) and temperature-assisted ionic liquid dispersive liquid-liquid microextraction ( TA-IL-DLLME) sample preparation coupled with high performance liquid chromatography ( HPLC ) for the analysis of 5 dyes residues in navel orange was developed. The QuEChERS sample preparation involved the quick extraction with acetonitrile in the presence of anhydrous MgSO4 and NaCl and the purification with primary secondary amine ( PSA ) sorbent. The TA-IL-DLLME sample preparation was processed using 1 mL of the extract obtained by QuEChERS as dispersive solvent and 60 μL of 1-octyl-3-methylimidazolium hexafluorophosphate as extractive solvent under 55 ℃ of water-bath temperature and 12 min of water-bath time. The ultimate solution was detected by HPLC-UV and the contaminated sample was further confirmed by UPLC-MS/MS under multiple reactions monitoring (MRM) mode. The recoveries of five dyes were in the range from 70. 3% to 93. 6% at two spike levels of 0. 01 and 0. 05 mg/kg, the relative standard deviations (RSDs) were between 3. 5% and 9. 2% and the limits of quantification (LOQs) were between 1. 1 and 2. 8 μg/kg.
