Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop with High Performance Liquid Chromatography for Determination of Decabrominated Diphenyl Ether in Surficial Sediments
- VernacularTitle:分散液液微萃取-上浮溶剂固化/高效液相色谱法测定沉积物中的十溴联苯醚
- Author:
Yinghong JIAN
;
Yan HU
;
Ting WANG
;
Jianlin LIU
;
Chen ZHANG
;
Yu LI
- Publication Type:Journal Article
- Keywords:
Dispersive liquid-liquid microextraction;
Solidification of floating organic drop;
High performance liquid chromatography-ultraviolet detection;
Sediment;
Decabrominated diphenyl ether;
Back propagation arti ficial neural network.
- From:
Chinese Journal of Analytical Chemistry
2010;38(1):62-66
- CountryChina
- Language:Chinese
-
Abstract:
A method for the determination of decabrominated diphenyl ether(decaBDE) in sediment samples at trace level using dispersive liquid-liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) and high performance liquid chromatography-ultraviolet detector (HPLC-UV) has developed.Based on the data of interactive orthogonal array design, the optimization experimental conditions were obtained with BP artificial neural network model: 1.00 mL methanol as dispersive solvent, 35.0 μL dodecanol as extractive solvent, 10.00% NaCl, pH 5, and extraction in 10 min.The extraction recovery (ER) was 62.22% at the extraction conditions.The proposed method exhibited a wide linear range(3.5-1400 ng/g) with R~2 =0.9921.The limit of detection (LOD) and the limit of quantification (LOQ) of this method were 2.3 pg/g(S/N =2) and 5.6 pg/g(S/N = 5), respectively.The recoveries of real samples at different spiking levels of decaBDE were 104.2%, 98.4% and 97.7%, respectively.Extraction, concentration and separation procedures for decaBDE from the sediment sample were carried out by one step, and hence, the process of DLLME-SFO for decaBDE was shortened.
