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Sheng Wu, Andrei Deev, Yan Zhuang, Le Lu, Zhengyou Wang, Yongchun Tang and Andrew Sneddon
We report the details of a field deployable mud gas carbon isotope analyzer for mud gas analysis based on coupling a gas chromatograph with a mid-infrared spectrometer using a quantum cascade laser and hollow waveguide. The GC?IR2 (gas chromatograph?infr...
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Chadapust J. Sudsiri, Natawat Jumpa and Raymond J. Ritchie
Chlorpyrifos® (Thaion Agro Chemical CO., Ltd. Yannawa, Bangkok 10120, Thailand) (an almost water insoluble organophosphate insecticide) has been extensively used, resulting in the presence as a surface contaminant in foodstuffs, surface streams and soils...
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Logan Rosenberg, Gerrit Kornelius
Biogas can be generated from biomass in an anaerobic digestion process and used to generate electricity and heat as an alternative energy source to fossil fuel-generated electricity. This study investigated biogas generation from cattle manure dried for ...
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Sergiu Paduret
This study focused on the analysis of bakery margarine samples divided into three groups according to physical-chemical analyses of their fat and water content. A Gas Chromatograph-Mass Spectrometer (GC-MS) was used for the evaluation of fatty acids, and...
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Ha Ram Byun, Seon Young Park, Ee Taek Hwang, Byoung In Sang, Jiho Min, Daekyung Sung, Won Il Choi, Sunghyun Kim and Jin Hyung Lee
Antimicrobial air filters are required to protect humans from the risk of secondary bioaerosol pollution as well as airborne particles. Three plant extracts (tea-tree oil, rosemary, and garlic) were selected to replace antimicrobial chemicals in air filt...
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Tekleweini Gereslassie, Ababo Workineh, Onyango Janet Atieno and Jun Wang
Organochlorine pesticides are groups of chemicals applied to prevent pest and insect infestation. This study was aimed at investigating the concentration, potential sources, cancer risk and ecological toxicity of organochlorine pesticides (OCPs) in Huang...
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Hongxia Liu, Kimitaka Kawamura, Bhagawati Kunwar, Junji Cao, Jiaquan Zhang, Changlin Zhan, Jingru Zheng, Ruizhen Yao, Ting Liu, Xianli Liu and Wensheng Xiao
PM10 samples were collected from Huangshi (HS) city, Central China during April 2012 to March 2013, and were analyzed for short-chain saturated dicarboxylic acids (diacids) using a capillary gas chromatograph (GC). We found that oxalic acid (C2, 318 ± 10...
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JUAN FELIPE FRANCO,JOSÉ PACHECO,LUIS CARLOS BELALCÁZAR,EDUARDO BEHRENTZ
Pág. 1 - 11
In this article, volatile organic compounds (VOC) were characterized in ambient air at three different monitoring sites within the urban perimeter of Bogotá, Colombia. On-line VOC measurements were conducted using a Synstech Spectras portable gas chromat...
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HB Jayasiri,CS Purushothaman,V Vennila
PAHs are a class of ubiquitous pollutants which consist of two or more fused benzene rings in various arrangements. A number of PAH compounds are known carcinogens and bioaccumulate and biomagnify. These compounds originate naturally as well as anthropog...
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