One-step liquid–liquid extraction of cocaine from urine samples for gas chromatographic analysis

2002 ◽  
Vol 127 (3) ◽  
pp. 204-207 ◽  
Author(s):  
Marcelo Farina ◽  
Maurı́cio Yonamine ◽  
Ovandir A Silva
Keyword(s):  
Chromatographic Analysis ◽  
Liquid Extraction ◽  
Urine Samples ◽  
Gas Chromatographic Analysis ◽  
Liquid Liquid Extraction ◽  
One Step

Extraction behaviour and mechanism of Pt(iv) and Pd(ii) by liquid–liquid extraction with an ionic liquid [HBBIm]Br

2017 ◽  
Vol 46 (22) ◽  
pp. 7210-7218 ◽  
Author(s):  
Wenhui Liu ◽  
Qi Wang ◽  
Yan Zheng ◽  
Shubin Wang ◽  
Yan Yan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Purity ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Extraction Behaviour ◽  
One Step

In this study, a method of one-step separation and recycling of high purity Pd(ii) and Pt(iv) using an ionic liquid, 1-butyl-3-benzimidazolium bromate ([HBBIm]Br), was investigated.

scholarly journals Comprehensive two-dimensional gas chromatographic analysis of volatile organic compounds in distillate of fermented Sorbus domestica fruit

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Olga Vyviurska ◽  
Solomiya Pysarevska ◽  
Nikoleta Jánošková ◽  
Ivan Špánik
Keyword(s):  
Chromatographic Analysis ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Liquid Extraction ◽  
Elution Order ◽  
Polar Medium ◽  
Nonpolar Medium ◽  
Liquid Liquid Extraction ◽  
Volatile Organic ◽  
Benzyl Esters

AbstractThe Slovak-Czech spirit distilled from Sorbus domestica was analyzed by GCxGC with headspace solid phase microextraction and liquid-liquid extraction. Two column combinations, nonpolar × medium-polar and polar × medium-polar were tested. The second column setup provided more exploited 2D separation space with better distribution of peaks in chromatogram. Effects of the first column on the elution order of γ-lactones, benzyl esters, and unsaturated aldehydes in the second separation were observed. More than 500 compounds were detected; nearly 100 were confirmed with standards.

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