ABSTRACT
Pankow et al [1] give details of a sampler developed for collection of rain water. The sampler is controlled electronically, provides in situ filtration of the sample, and carries our preconcentration of non-polar organic compounds by means of cartridges containing the sorbent Tenax GF. It is possible to incorporate cartridges of ion-exchange resin for preliminary concentration of organic acids. Samples of rain water collected by this equipment from several rainfall events at two sites in Oregon were analysed by gas chromatography-mass spectrometry and 27 organic compounds were identified. The results were used in conjunction with available Henry’s law constants to estimate the local atmospheric levels of these compounds.
