Viable and Rapid Determination of Organochlorine Pesticides in Water

2010 ◽  
Vol 38 (5-6) ◽  
pp. 457-465 ◽  
Author(s):  
Senar Ozcan
Keyword(s):  
Organochlorine Pesticides ◽  
Rapid Determination ◽  
Pesticides In Water

Rapid Determination of Organochlorine Pesticides and Poly chlorinated Biphenyls, Using Selected Ion Monitoring Mass Spectrometry

1984 ◽  
Vol 67 (6) ◽  
pp. 1067-1075 ◽  
Author(s):  
Erika E Hargesheimer
Keyword(s):  
Mass Spectrometry ◽  
Organochlorine Pesticides ◽  
Chemical Ionization ◽  
Rapid Determination ◽  
Environmental Water ◽  
Selected Ion Monitoring ◽  
Chlorinated Pesticides ◽  
Minimal Sample ◽  
Methane Chemical Ionization

Abstract Methane chemical ionization (CI)-selected ion monitoring (SIM) mass spectrometry was used to identify and conclusively distinguish 19 organochlorine pesticides from polychlorinated biphenyls (PCBs) at parts-per-trillion to parts-per-billion levels in environmental water sample extracts with minimal sample cleanup. Two CI-SIM screens were developed. One set of ions scanned specifically for the presence of 4 classes of pesticides: diphenylmethane derivatives, bridged polycyclic chlorinated hydrocarbons, chlorinated benzenes, and acetanilide pesticides. The second set of ions responded exclusively to PCBs with biphenyl moieties containing from 1 to 8 chlorine atoms. Eight commercial Aroclor mixtures were analyzed and distinguished from the pesticide groups. The detection limit for pesticides and PCBs by CISIM screening was 0.005 and 0.1 ppb, respectively. CI-SIM can be used as an alternative method for the analysis of biological or environmental samples containing interferences that complicate the detection of PCBs and chlorinated pesticides.

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