Published Online: 1 October 1983
Page Count: 7
Sergeant, Upper Gwynedd Township Police Department, West Point, PA
(Received 13 December 1982; accepted 8 February 1983)
Radio frequency interference (RFI) from available frequencies in the 150 to 170 mHz band has been identified as affecting the analysis of a vapor sample using an Alco-Analyzer® gas chromatograph. Various effects on the recording of the ethyl alcohol concentration curve are discussed and demonstrated for identification of rf-induced changes.
Paper ID: JFS11608J