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作者:Zdenek Zencak , Anders Borgen ...
来源:[J].Journal of Chromatography A(IF 4.612), 2004, Vol.1067 (1), pp.295-301
摘要:Abstract(#br)The suitability of four mass spectrometric methods for the gas chromatographic analysis of polychlorinated n -alkanes (PCAs, also called chlorinated paraffins) was evaluated and compared using spiked and fish liver samples. Electron ionization tandem mass spectr...
作者:Zdenek Zencak , Michael Oehme
来源:[J].Trends in Analytical Chemistry(IF 6.351), 2005, Vol.25 (4), pp.310-317
摘要:Abstract(#br)Chlorinated paraffins (CPs), also known as polychlorinated n -alkanes (PCAs), are industrial contaminants, which are persistent, toxic and bioaccumulative. The quantitative analysis of these compounds is very demanding due to the great complexity of their technical m...
作者:Zdenek Zencak , Marie Elmquist , Örjan Gustafsson
来源:[J].Atmospheric Environment(IF 3.11), 2007, Vol.41 (36), pp.7895-7906
摘要:Abstract(#br)To make progress towards linking the atmosphere and biogeosphere parts of the black carbon (BC) cycle, a chemothermal oxidation method (CTO-375), commonly applied for isolating BC from complex geomatrices such as soils, sediments and aquatic particles, was appli...
作者:Zdenek Zencak , Manolis Mandalakis ...
来源:[J].Applied Geochemistry(IF 1.708), 2010, Vol.25 (9), pp.1301-1306
摘要:Abstract(#br)Compound-specific Cl-isotope analysis was performed on the persistent and bioaccumulating compound tris-(4-chlorophenyl)methane (4,4′,4″-TCPMe, referred to as TCPMe in this study) to elucidate whether its main source is natural or anthropogenic. Blubber from the...
作者:Margot Reth , Zdenek Zencak , Michael Oehme
来源:[J].Chemosphere(IF 3.137), 2004, Vol.58 (7), pp.847-854
摘要:Abstract(#br)This study presents the first investigation of concentrations and congener group patterns of short- (SCCPs) and medium-chain chlorinated paraffins (MCCPs) in fish from the North and Baltic Sea. North Sea dab, cod and flounder were studied. High resolution gas ch...
作者:Zdenek Zencak , Örjan Gustafsson
来源:[J].Journal of Chromatography A(IF 4.612), 2005, Vol.1103 (1), pp.133-138
摘要:Abstract(#br)Chlorine isotope fractionation during preparative capillary gas chromatography (pcGC) was investigated using 1,1,1-trichloro-2,2-bis( p -chlorophenyl)ethane (DDT) as a model compound for semi-volatile organochlorine (OCl) molecules. Chlorine isotope analysis by ...
作者:Zdenek Zencak , Per Andersson
来源:[J].Chemosphere(IF 3.137), 2007, Vol.69 (10), pp.1533-1539
摘要:Abstract(#br)Compound-specific chlorine-isotope analysis (CSIA-Cl) of 1,1,1-trichloro-2,2-bis( p -chlorophenyl)ethane ( p , p ′-DDT) and 1,1-dichloro-2,2-bis( p -chlorophenyl)ethene ( p , p ′-DDE) in blubber from Baltic Grey seal ( Halichoerus grypus ) was performed in order...
作者:Margot Reth , Zdenek Zencak , Michael Oehme
来源:[J].Journal of Chromatography A(IF 4.612), 2005, Vol.1081 (2), pp.225-231
摘要:Abstract(#br)An improved quantification procedure for the analysis of chlorinated paraffins (CPs) is presented based on electron capture negative ionization mass spectrometry. It compensates differences in response factors between reference CP mixtures and the CP pattern pre...
作者:Bart E. van Dongen , Zdenek Zencak , Örjan Gustafsson
来源:[J].Marine Chemistry(IF 3), 2008, Vol.112 (3), pp.203-214
摘要:Abstract(#br)Detailed organic geochemical analyses were performed on surface water particulate samples of the lower Kalix River and northern Bothnian Bay collected during the spring flood of 2005. Both bulk geochemical and molecular biomarker analyses indicated a predominanc...
作者:Zdenek Zencak , Michael Oehme , Sonja Skopp
来源:[J].Rapid Communications in Mass Spectrometry(IF 2.509), 2001, Vol.15 (18), pp.1719-1725
摘要:Abstract(#br)The detection of some chlordane compounds (heptachlor, cis‐/trans‐chlordane and cis‐/trans‐nonachlor) by positive ion chemical ionization (PICI) in an ion trap was studied using acetonitrile, acrylonitrile and dichloromethane as non‐conventional reagen...

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