Preparation of Quality Control Sample for Lead Determination in Filter Membrane Material
A method of preparation and determination of lead quality control samples in filter membrane was pro-posed.The mixed cellulose blank filter membrane was prepared by the standard volume addition method,and then the uniformity and stability were evaluated by flame atomic absorption spectrophotometry,and the uncertainty was e-valuated.The results show that the method is feasible,and the sample uniformity and stability are good,the magni-tude and uncertainty meet the requirements of use,and can provide a reference for the evaluation of the detection method and the validity of the data.
leadheavy metalfilter membranequality control sampleuncertainty
万方数据
维普
