Abstract

The capability of corona-discharge ion mobility spectrometry (CD-IMS) in the quantitative determination of acetone has been evaluated. Generally, in IMS the signal intensity of a product ion is not a linear function of the sample concentration. A linear calibration curve was, however, obtained by plotting ln(R0+/R0+-P+) against acetone concentration, where, R0+ is the original reactant ion density and P+ is the sum of all the product ion densities. The acetone detection limit was 60 ng m(-3) and its dynamic range was three orders of magnitude.

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