W291747 fluorescence mercury testing of arsenic in trace and ultra-trace arsenic, mercury elements for testing equipment. It is the principle of atomic fluorescence spectrometry technology, which could apply to trace arsenic, mercury, lead, cadmium, selenium, and other elements of the analysis of 11 species. The instrument for arsenic, mercury element of the characteristics of the optimization. It uses plug-reaction bottles, easy to clean, high reliability. It can be more convenient, rapid sample of the liquid in the amount of mercury and arsenic were measured, but also can be processed into solid and gas solution of the sample, such as hair, meat, cereals, crude oil, soil, atmosphere, etc.. The instrument can be widely used in environmental monitoring, hygiene and disease control, food inspection, metallurgy geology, the Import and Export Commodity Inspection and mining enterprises in various sectors of the samples in the trace of arsenic and mercury. As can be tested, Se, Pb, Sn, Bi, Sb and Te, Hg, Cd, and other elements of arsenic and mercury analysis done a particularly high sensitivity can be optimized to meet its environmental monitoring and health and epidemic prevention departments of arsenic and mercury Determination of the need detection limit: Mercury is not more than 0.05 ug / L Arsenic is not more than 0.5 ug / L Linear: Standard curve correlation coefficient of not less than 0.997 Reproducibility (coefficient of variation): <5% Measurement Range: Mercury 0.5 ~ 100ug / L Arsenic 5 ~ 1000ug / L Power: AC 220V .+/- 20V, 50Hz 300W power supply Dimensions: 650 * 350 * 230mm