GB/T 36690-2018 Method of determination for 26 elements(copper,nickel,lead,zinc,cadmium,chrome etc.)content in the sludge from industrial waste liquid treatment
GB/T 36690-2018 Method of determination for 26 elements(copper,nickel,lead,zinc,cadmium,chrome etc.)content in the sludge from industrial waste liquid treatment
Basic Information
Scope
This standard specifies the terms and definitions, general provisions, sample preparation, and two detection methods (inductively coupled plasma atomic emission spectrometry and hydride generation atomic fluorescence spectrometry) for determining the content of 26 elements, including copper, nickel, lead, zinc, cadmium, and chromium, in sludge from industrial wastewater treatment.
This standard applies to the determination of the content of 26 elements, including silver (Ag), aluminum (Al), arsenic (As), gold (Au), barium (Ba), beryllium (Be), bismuth (Bi), calcium (Ca), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), manganese (Mn), molybdenum (Mo), nickel (Ni), palladium (Pd), lead (Pb), antimony (Sb), selenium (Se), tin (Sn), strontium (Sr), titanium (Ti), and vanadium (V), in sludge from industrial wastewater treatment.
[JP2] For inductively coupled plasma atomic emission spectrometry, the suitable determination concentration range for fresh sludge samples is 5 mg/kg to 10,000 mg/kg without sample dilution; for air-dried or oven-dried sludge samples, the suitable determination concentration range is 50 mg/kg to 100,000 mg/kg. The detection limits for each element by inductively coupled plasma atomic emission spectrometry are shown in Appendix A.
For hydride generation atomic fluorescence spectrometry, the detection limit for mercury is 0.004 mg/kg, and the suitable determination concentration range is 0.016 mg/kg to 5 mg/kg; for arsenic, selenium, antimony, and bismuth, the detection limits are 0.020 mg/kg, and the suitable determination concentration range is 0.080 mg/kg to 50 mg/kg.