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    Home > News

    Ministry of Environmental Protection issues two water quality monitoring standards

    Source: Author: Time: 2016-08-03 Views: Times

    The Ministry of Environmental Protection recently released the "Purge and Trap / Gas Chromatography Method for the Determination of Acrylonitrile and Acrolein in Water" (HJ 806-2016) and the "Graphite Furnace Atomic Absorption Spectrophotometry for the Determination of Molybdenum and Titanium in Water" (HJ 807- 2016) and other national environmental protection standards. The standard regulates the environmental monitoring work, and it will be implemented from August 1, 2016.

    It is understood that these standards were formulated to implement the "Environmental Protection Law of the People's Republic of China" and "Water Pollution Prevention and Control Law of the People's Republic of China", protect the environment, protect human health, and standardize the methods for measuring acrylonitrile and acrolein, molybdenum, and titanium in water.

    The "Purge and Trap / Gas Chromatography Method for the Determination of Acrylonitrile and Acrolein in Water" specifies the purge and trap / gas chromatography method for the determination of acrylonitrile and acrolein in water. It is applicable to surface water, groundwater, seawater, industrial wastewater and Determination of acrylonitrile and acrolein in domestic sewage. When the sampling volume is 5 ml, the detection limits of acrylonitrile and acrolein are both 0.003 mg / L, and the lower detection limits are 0.012 mg / L.

    Determination of Molybdenum and Titanium in Water by Graphite Furnace Atomic Absorption Spectrophotometry. The standard specifies the graphite furnace atomic absorption spectrophotometry for the determination of molybdenum and titanium in water. . In this method, the detection limit of molybdenum is 0.6 micrograms / liter, and the lower limit of detection is 2.4 micrograms / liter. The detection limit of titanium is 7 micrograms / liter, and the lower limit of detection is 28 micrograms / liter.

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