The use of nitric acid as extraction agent can effectively shorten the analysis time of available phosphorus in mono-ammonium phosphate,save reagent cost and personnel cost,especially for batch analysis.This method has good accuracy and repeatability,and is suitable for popularization and application.
关键词
磷酸一铵/有效磷/硝酸/恒温水浴
Key words
mono-ammonium phosphate/available phosphorus/nitric acid/thermostatic water bath