GB/T 42487-2023
ActiveSoil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination using automated method with segmented flow analysis
土壤质量 土壤硝态氮、亚硝态氮和铵态氮的测定 氯化钾溶液浸提流动分析法
Application Summary AI generated
This standard specifies a method for extracting nitrate, nitrite, and ammonium from soil samples using potassium chloride solution, followed by automated segmented flow analysis for quantification. It is applied in environmental monitoring, agricultural soil testing, and laboratory analysis to assess soil nitrogen content for fertility management and pollution evaluation. The method ensures consistent, high-throughput measurement of these nitrogen forms in compliance with Chinese environmental quality standards.
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