S. E. Birnie, "Automated continuous monitoring of inorganic and total mercury in wastewater and other waters by flow-injection analysis and cold-vapour atomic absorption spectrometry", Journal of Analytical Methods in Chemistry, vol. 10, Article ID 703954, 4 pages, 1988. https://doi.org/10.1155/S1463924688000264
Automated continuous monitoring of inorganic and total mercury in wastewater and other waters by flow-injection analysis and cold-vapour atomic absorption spectrometry
An automated continuous monitoring system for the determination of inorganic and total mercury by flow-injection analysis followed by cold-vapour atomic absorption spectrometry is described. The method uses a typical flow-injection manifold where digestion and reduction of the injected sample takes place. Mercury is removed by aeration from the flowing stream in a specially designed air-liquid separator and swept into a silica cell for absorption measurement at a wavelength of 253.7 nm. A calibration curve up to 10 µg Hg ml-1 using three different path length cells is obtained with a detection limit of 0.02 µg Hg ml-1. The sampling rate of an injection every 3 min produces 20 results per hour from a flowing stream.
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