Essays about: "volatile organic compounds"
Showing result 16 - 20 of 52 essays containing the words volatile organic compounds.
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16. Development of headspace solid phase microextraction gas chromatography mass spectrometry method for analysis of volatile organic compounds in board samples : Correlation study between chromatographic data and flavor properties
University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Abstract : The purpose of this thesis work was to develop a headspace solid phase microextraction gas chromatography mass spectrometry (HS-SPME-GC-MS) method to detect volatile organic compounds (VOCs) in board samples and to statistically investigate potential correlation between chromatographic data and flavor data obtained from a trained panel. The developed method would hopefully serve as a complement to the already established routine analyses at Stora Enso and gain an increased understanding of which VOCs in the board influence its flavor properties. READ MORE
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17. An Investigation of Market Scalability for Volatile Organic Compounds (VOCs') Filtration Systems : A Case Study within Sweden
University essay from Uppsala universitet/Industriell teknikAbstract : With the need for excellent living standards to escalate day by day, the need to breathe good quality air remains of paramount importance for a prosperous, happy life. The indoor air quality picture is improving decade by decade. However, the importance of maintaining good indoor air quality remains unsatisfactory. READ MORE
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18. Development of a GC Method for the Quantification of Short Chain Carboxylic Acids in Aqueous Solution
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : Petroleum powered vehicles emit volatile organic compounds (VOCs) through combustion that contributes to the pollution of the environment. A technique in the 1970s was developed to decrease these emissions, especially for nitrogen oxides (NOx) and sulphuric oxides (SOx) which is called exhaust gas recirculation (EGR). READ MORE
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19. Total oxidizable precursor assay: Applications and limitations. A study on the occurrence of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in Chinese Wastewater Treatment Plants
University essay from Örebro universitet/Institutionen för naturvetenskap och teknikAbstract : Total oxidizable precursor (TOP) assay is an in-lab method which oxidatively converts precursor compounds of poly- and perfluoroalkyl substances (PFASs) into measurable perfluorinated alkyl acids (PFAAs). The method is a very strong tool to semi-quantify PFASs that would otherwise be missed in conventional targeted analysis using liquid chromatography - tandem mass spectrometry (LC-MS/MS). READ MORE
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20. Gas Chromatography-Mass Spectrometry of Volatile Organic Compounds from four Species of Grass Extracts from known Oviposition sites for Malaria Vectors
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Tidigare studier har visat att äggläggande malariavektorer attraheras till vissa flyktiga organiska ämnen (VOC) som finns i olika gräsarter. Syftet med den här studien var att verifiera att flyktiga organiska ämnen finns i fyra olika gräsarter från Kenya; Panicum repens,Cynodon dactylon och Cyperus papyrus med Pennisetum setaceum rubrum som kontroll förde andra gräsarterna. READ MORE