scholarly journals Application of an Automated Headspace Solid Phase Micro-Extraction for the GC-MS Detection and Quantification of Reductive Sulfur Compounds in Wines

10.5772/33412 ◽  
2012 ◽  
Author(s):  
Dang-Dung Nguyen ◽  
Laura Nicolau ◽  
Paul A.
Keyword(s):  
Solid Phase ◽  
Sulfur Compounds ◽  
Solid Phase Micro Extraction ◽  
Ms Detection ◽  
Detection And Quantification

Analytical Perspectives on Emerging Organic Contaminants in the Aquatic Ecosystem

2020 ◽  
pp. 68-80
Author(s):  
Hossein Miraji ◽  
Othman Chande Othman ◽  
Faustin Ngassapa ◽  
Mureithi Eunice
Keyword(s):  
Organic Contaminants ◽  
Emerging Contaminants ◽  
Solid Phase ◽  
Dynamic Properties ◽  
Phase Extraction ◽  
Solid Phase Micro Extraction ◽  
Future Perspectives ◽  
Emerging Organic Contaminants ◽  
As Solid Phase ◽  
Detection And Quantification

This chapter introduces readers to the background of emerging contaminants by defining emerging contaminants and telling their history and their corresponding effects. It describes the dynamic properties of emerging contaminants such as advection and dispersion, chemistry, and their reactivity behavior. Lastly, it tells the analytical methodologies on sample preparation such as solid phase extraction and solid-phase micro-extraction, detection and quantification of organic ECs, and it proposes future perspectives of emerging contaminants.

Development and comparison of direct immersion solid phase micro extraction Arrow-GC-MS for the determination of selected pesticides in water

2021 ◽  
Vol 164 ◽  
pp. 106006
Author(s):  
Seyed Mohammad Seyed Khademi ◽  
Amir Salemi ◽  
Maik Jochmann ◽  
Sasho Joksimoski ◽  
Ursula Telgheder
Keyword(s):  
Solid Phase ◽  
Solid Phase Micro Extraction ◽  
Pesticides In Water ◽  
Direct Immersion

scholarly journals Development of Solid Phase Micro Extraction Technique for Determination of Triazines in Water Samples Using Experimental Design

2016 ◽  
Vol 28 (3) ◽  
pp. 562-566 ◽  
Author(s):  
Md Pauzi Abdullah ◽  
Kamarruddin Asri ◽  
Mohamad Salleh Ramli ◽  
Maimunah Sulaiman Wahid ◽  
Wan Mohd Afiq Wan Mohd Khalik
Keyword(s):  
Experimental Design ◽  
Water Samples ◽  
Solid Phase ◽  
Extraction Technique ◽  
Solid Phase Micro Extraction

Hydrogen sulphide inhibits PSII of lichen photobionts

2013 ◽  
Vol 45 (1) ◽  
pp. 101-113 ◽  
Author(s):  
Stefano BERTUZZI ◽  
Mauro TRETIACH
Keyword(s):  
Hydrogen Sulphide ◽  
Vascular Plants ◽  
Solid Phase ◽  
Photosynthetic Apparatus ◽  
Sample Surface ◽  
Gas Chromatography Mass Spectrometry ◽  
Solid Phase Micro Extraction ◽  
Action Mechanisms ◽  
Species Specific ◽  
Closed Chambers

AbstractThe effects of hydrogen sulphide (H2S) on five lichens with different photobionts, ecology, and tolerance to the pollutant were studied by means of samples exposed in closed chambers containing two known H2S solutions. The H2S concentration in the void volume at equilibrium with the liquid phase was measured by gas chromatography-mass spectrometry, combined with the use of solid phase micro extraction (GC/MS SPME). It was determined as 8 and 28 ppm H2S in the absence of lichen material, andc. 2 and 10 ppm H2S respectively with living lichen material inserted for 8 hours in the exposure chambers. Significant differences in the species-specific emission of chlorophyllafluorescence (ChlaF) were observed, with a pronounced depression ofFv/Fmalready detectable after 2 h exposure at 28 ppm H2S in all the species. The decreased intensity was positively correlated to sample surface and, to a lesser extent, to the species-specific pre-exposureFv/Fmvalue. Dark-exposed samples were less affected than light-exposed ones. All four chlorolichens could recover the pre-exposure ChlaF emission after two days in the absence of H2S, both in the light and in the dark, whereas the cyanolichen did not recover when kept in the dark. The results are thoroughly discussed on the basis of the known action mechanisms of H2S on the photosynthetic apparatus of vascular plants and cyanobacteria.

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