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Helium microwave induced plasma atomic emission detection for liquid chromatography utilizing a moving band interface

Journal Article · · Analytical Chemistry (Washington); (United States)
DOI:https://doi.org/10.1021/ac00067a009· OSTI ID:5119482
; ;  [1];  [2]
  1. Northern Illinois Univ., DeKalb, IL (United States)
  2. Argonne National Lab., IL (United States)
A moving band interface is used to separate HPLC solvent from analyte before introduction into a microwave-induced plasma atomic emission detector. Spectral scans indicate that all detectable solvent is removed prior to analyte introduction. Analyte memory effects are not detectable. Chlorine element selective detection limits are 140,410, 220, and 770 pg/s for 9-chlorofluorene, p-chlorobiphenyl, 4-chlorobenzophenone, and [alpha],[alpha]'-dichloro-o-xylene, respectively. If the vaporization region is heated significantly, chlorine selective response is dependent upon the boiling point of the compound due to analyte volatilization before it reaches the detector. 18 refs., 8 figs., 2 tabs.
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5119482
Journal Information:
Analytical Chemistry (Washington); (United States), Journal Name: Analytical Chemistry (Washington); (United States) Vol. 65:19; ISSN 0003-2700; ISSN ANCHAM
Country of Publication:
United States
Language:
English