Inhibition of water adsorption into polar solid-phase microextraction materials with ultrathin polydimethylsiloxane coating for thermal desorption-gas chromatography analysis

2018 ◽  
Vol 1578 ◽  
pp. 1-7 ◽  
Author(s):  
Xiaohui Yan ◽  
Yingying Zhan ◽  
Dongdong Zhong ◽  
Yanshuo Li ◽  
Dapeng Wu
Keyword(s):  
Gas Chromatography ◽  
Thermal Desorption ◽  
Solid Phase Microextraction ◽  
Water Adsorption ◽  
Solid Phase ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis

scholarly journals Headspace solid-phase microextraction procedure for gas-chromatography analysis of toluene in urine

2008 ◽  
Vol 19 (6) ◽  
pp. 1201-1206 ◽  
Author(s):  
Diego C. Netto ◽  
Rafael M. Reis ◽  
Camila B. Mendes ◽  
Paulo C. F. L. Gomes ◽  
Isarita Martins ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Headspace Solid Phase Microextraction ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis

scholarly journals Solid-phase microextraction of benzophenones coupled with gas chromatography analysis

2016 ◽  
Vol 4 (2) ◽  
pp. 55-62
Author(s):  
Valentyna Levchyk ◽  
M. Zui
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Enrichment Factors ◽  
Chromatography Analysis ◽  
Fiber Coating ◽  
Flame Ionization ◽  
Gas Chromatography Analysis ◽  
Relative Standard ◽  
Ph Range

In this study, solid-phase microextraction method combines with gas chromatography-flame ionization detector. The proposed method is used for the preconcentration of some benzophenones. Influence of different factors on the efficiency of extraction is described in detail. The analytical procedure was optimized for fiber coating selection, extraction time, temperature, sample pH, ionic strength. For all benzophenones, the highest enrichment factors were achieved using carboxen/polydimethylsiloxane/divinylbenzene fibre immersed directly into the water samples, containing 100 mg/mL of sodium chloride, at room temperature. The optimum pH range is 5.0 – 7.0. The relative standard deviations (RSDs) were from 1.3 to 10.0 % (n = 3). The method was applied to the determination of benzophenone, benzophenone-3, 2-hydroxybenzophenone in the lake water and urine.

Assessment of the effect of the non-volatile wine matrix on the volatility of typical wine aroma compounds by headspace solid phase microextraction/gas chromatography analysis

2011 ◽  
Vol 91 (13) ◽  
pp. 2484-2494 ◽  
Author(s):  
Juan José Rodríguez-Bencomo ◽  
Carolina Muñoz-González ◽  
Inmaculada Andújar-Ortiz ◽  
Pedro Jose Martín-Álvarez ◽  
Maria Victoria Moreno-Arribas ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Aroma Compounds ◽  
Wine Aroma ◽  
Headspace Solid Phase Microextraction ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis ◽  
Wine Matrix
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