On calibration of solid phase microextraction-gas chromatography-mass spectrometry system for analysis of organic air contaminants using gaseous standard mixtures

The paper briefly touches the general problems related to calibration in an alytical measurements. The special requirements with respect to calibration in methods of air organic contaminants determination (those based on solid phase microextraction, SPME) are stressed. A convenient apparatus for gene ration of gaseous mixture with low organic analyte content with facilities for SPME sampling is described. The procedure for temperature and humidity corrected calibration is proposed and studies on effects of these parameter s on calibration curves are presented.