Selective Determination of Tin (II) Ion in Water by Solvent Extraction with Salicylidenamino‐2‐thiophenol Followed by Reversed‐Phase High‐Performance Liquid Chromatography with Photometric Detection

2003 ◽  
Vol 26 (18) ◽  
pp. 3129-3139 ◽  
Author(s):  
Susumu Ichinoki ◽  
Hatsumi Iwase ◽  
Fumio Arakawa ◽  
Kanami Hirano ◽  
Youichi Fujii
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
High Performance ◽  
Reversed Phase ◽  
Selective Determination ◽  
Photometric Detection

Study of an Accelerated Solvent Extraction Procedure for the Determination of Acaricide Residues in Honey by High-Performance Liquid Chromatography–Diode Array Detector

2002 ◽  
Vol 65 (1) ◽  
pp. 161-166 ◽  
Author(s):  
E. KORTA ◽  
A. BAKKALI ◽  
L. A. BERRUETA ◽  
B. GALLO ◽  
F. VICENTE
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solvent Extraction ◽  
High Performance ◽  
Extraction Procedure ◽  
Reversed Phase ◽  
Accelerated Solvent Extraction ◽  
Array Detector ◽  
Static Extraction

An accelerated solvent extraction (ASE) procedure has been optimized for the determination of synthetic acaricides (amitraz, bromopropylate, cymiazole, coumaphos, τ-fluvalinate, and flumethrin) and their residues in honey by reversed-phase high-performance liquid chromatography. The effects of experimental variables such as solvent composition, temperature, static extraction time, and solvent flush volume on the ASE efficiency have been studied. The acaricides were extracted by hexane–propanol (1/3, vol/vol) at 95°C and 2,000 psi for 8 min. Recovery values of between 53 and 108% were achieved with the different substances, with coefficients of variation between 2 and 13% and limits of detection from 0.01 to 0.2 μg/g.

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