title: Detection of chlordanes by positive ion chemical ionization in an ion trap: a comparative [correction of comparitive] study of the non-conventional reagents acetonitrile, acrylonitrile and dichloromethane.
abstract: 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 reagent gases. These reagent gases initiated specific fragmentation reactions and resulted in different response factors. All reagent gases enabled detection limits in the low-pg range for heptachlor, whereas the detection limits of cis-/trans-chlordane and cis-/trans-nonachlor were in the mid-pg range. Additionally, the acetonitrile and dichloromethane PICI mass spectra of the cis- and trans-stereoisomers of chlordane and nonachlor were different.
authors.affiliation: Organic Analytical Chemistry, University of Basel, Neuhausstrasse 31, CH-4057 Basel, Switzerland.
authors.forename: Z
authors.initials: Z
authors.lastname: Zencak
authors.forename: M
authors.initials: M
authors.lastname: Oehme
authors.forename: S
authors.initials: S
authors.lastname: Skopp
mesh_terms: D000097:Acetonitriles; D000181:Acrylonitrile; D002706:Chlordan / Q000031:analogs & derivatives* / Q000032:analysis*; D007202:Indicators and Reagents; D007306:Insecticides / Q000032:analysis*; D013058:Mass Spectrometry; D008752:Methylene Chloride; D012997:Solvents
chemical_list: D000097:Acetonitriles; D007202:Indicators and Reagents; D007306:Insecticides; D012997:Solvents; D002706:Chlordan; D008752:Methylene Chloride; D000181:Acrylonitrile