电感耦合等离子体质谱法测定桃胶中微量元素

Determination of Trace Elements in Peach Gum by ICP-MS

通过硝酸-过氧化氢体系微波消解,采用电感耦合等离子体质谱法测定桃胶样品中的钛、钒、锰、铁、钴、镍、铜、锌、锗、硒、锶、钼、锡、锑、钡等15种微量元素,以钪、铟为内标物进行校正,消除基体的干扰,通过对2种国家标准物质的测定,结果表明试验测定值与标准值吻合。

The radix notoginseng sample was digested with nitric acid and hydrogen peroxide by microwave,and the trace contents of element in glue of peach trees such as Ti,V,Mn,Fe,Co,Ni,Cu,Zn,Ge,Se,Sr,Mo,Sn,Sb,Ba were determined by ICP-MS.By using Sc,in as internal standards,the interference from matrix can be eliminated.Two kinds of certified reference materials were analyzed,and the results were satisfactory to standard values.