The RA-915 Spectrometer was originally designed as a portable instrument to pin point the sources of Mercury spills and accumulations. A built in multi-pass cell provides for the high sensitivity of the instrument (several ng / m3). The instrument does not require any amalgamation or pre-concentration steps and, therefore, generates real time Mercury values. To address the high level of Mercury contamination the instrument is also equipped with a small single pass cell. The instrument also has a built in calibration cell for instant QC check in the field. It could be operated via its own hand held controller / reader or using a notebook PC. The application of the instrument to the determination of Mercury in natural gas as well as in the products of its combustion will be demonstrated.
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