Determination of sulfur components in natural gas: a review

A review with 87 refs. of the three steps common for anal. methods for trace anal. in complex matrixes, i.e., pretreatment, chromatog. sepn., and detection, are discussed in detail. Possible methods for calibration of the system are discussed in the final section. Various techniques to det. sulfur in natural gas are described. Depending on the application, the most suitable system has to be selected. For example, for online application in a hazardous area a simple and rugged system is required, i.e. a simple gas chromatograph with a flame photometric detector, while for lab. application a more complex instrument including preconcn., column switching, and more exotic detection systems could be more suitable. Therefore it is crucial to define the requirements of the instrument at an early stage and use the information in this review article to develop/select a dedicated instrument/procedure for the problem at hand