This standard specifies a purge-and-trap/gas chromatography-cold atomic fluorescence spectrometry method for the determination of methylmercury and ethylmercury in soils and sediments. This standard applies to the determination of methylmercury and ethylmercury in soil and sediments. When the sampling volume is 0.5 g and the extraction liquid volume is 30 ml, the method detection limits of methylmercury and ethylmercury are both 0.2 μg/kg, and the lower determination limits are both 0.8 μg/kg. See Appendix A for details.
HJ 1269-2022 Referenced Document
GB 17378.3 The specification for marine monitoring.Part3:Sample collection,storage and transportation
GB 17378.5 The specification for marine monitoring.Part 5:Sediment analysis
HJ 25.2 Technical Guidelines for Soil Pollution Risk Control and Restoration Monitoring of Construction Land
HJ 442.4 Inshore Sea Area Environmental Monitoring Technical Specifications Part Four Inshore Sea Area Sediment Monitoring (
HJ 494 Water quality.Guidance on sampling techniques
HJ 613 Soil.Determination of dry matter and water content.Gravimetric method
HJ/T 166 Technical specification for soil environmental monitoring
HJ/T 91 Technical Specifications Requirements for Monitoring of Surface Water and Waste Water
HJ 1269-2022 history
2022HJ 1269-2022 Soil and sediment—Determination of methyl mercury and ethyl mercury—Purge and trap/gas chromatography - cold vapor atomic fluorescencespectrometry