电感耦合等离子体原子发射光谱法分析25种元素对磷的光谱干扰及其校正

Analysis and correction of spectral interference of 25 elements to phosphorus by inductively coupled plasma atomic emission spectrometry

利用电感耦合等离子体原子发射光谱法分析了25种元素对磷的光谱干扰及其校正。电感耦合等离子体原子发射光谱法测定样品中磷元素含量时存在光谱干扰,通过干扰系数法,对铍、硼、镁、铝、硅、钙、钪等25种元素对磷元素的光谱干扰情况进行了分析,获得各元素的干扰系数。以国家标准物质GBW 01305为样品,利用该方法对其磷元素含量进行光谱干扰校正分析,测定结果的误差由2.9%降至0.2%。可以该方法为依据对不同材料中磷元素的光谱干扰现象加以校正。

The spectral interferences and their correction of 25 elements to phosphorus were analyzed by inductively coupled plasma atomic emission spectrometry(ICP-OES).Spectral interference exists in the determining of phosphorus in samples by ICP-OES.The interference coefficient method was used to analyze the spectral interference of 25 elements such as strontium,boron,aluminum,silicon,calcium and strontium to phosphorus,and the interference coefficient of each element was obtained.The phosphorus content of GBW 01305 was analyzed by spectral interference correction using this method,the error decreased from 2.9%to 0.2%.This method can be used as a basis for correcting the spectral interference phenomenon of phosphorus in different materials.