Determination of Mercury in Soil, Bottom Sediments and Geological Materials - Soil and Groundwater
Introduction : Analysis of soils, bottom and overburden sediments, rocks and ores for mercury content is one of the most common measurements in environmental pollution monitoring and geochemical exploration. Lumex Instruments proposes a rapid and precise method for direct mercury determination using RA-915 series analyzers based on atomic absorption spectroscopy with Zeeman correction of the background absorption (ZAAS). The thermoscanning option enables the identification of mercury species with varying binding energies to a sample matrix providing additional information in comparison to the total mercury determination.
This method is based on the atomization of mercury contained in a sample in a PYRO-915+ attachment and subsequent mercury determination by atomic absorption spectrometry employed in a mercury analyzer RA-915M. The mercury AAS analyzer RA-915M with the Zeeman background correction equipped with a PYRO-915+ thermal decomposition attachment provides determination of mercury in soil and other similar samples without sample preparation and mercury accumulation on a sorbent. Mercury content in the sample is determined from the integrated analytical signal with due account of the preset calibration coefficient (from any reference mercury sample).
The mercury content is measured by an RA-915M mercury analyzer within 2 minutes.