This standard specifies a liquid chromatography-quadrupole mass spectrometry method for the determination of four nitric acid compounds in surface water, groundwater, domestic sewage and industrial wastewater.
HJ 1049-2019 Referenced Document
HJ/T 164 Technical specifications for environmental monitoring of groundwater
HJ 1049-2019 history
2019HJ 1049-2019 Water Quality Determination of Four Nitrophenol Compounds by Liquid Chromatography-Triple Quadrupole Mass Spectrometry