摘要
Using Ca-Mg mixed matrix modifier,grahit furnace atomic absorption spectrometry is used to determine the determination of boron.The author systemically study the experiment conditions of boron,discuss the choice of matrixmodifier and acidity of samples and influence of coexistent elements.Characteristic quantity of the method is 0.227ng and detection limit is 0.022ug/mL.The method is simple.Used in the analysis of practical samples,the method can meet the need of water quality analysis.