摘要
利用端视等离子体原子发射光谱法测定了无磷洗衣粉的磷标准样品,探讨了基体元素钠对磷的干扰情况,对试验条件进行了优化,检出限为0.007μg·ml-1,RSD为2.9%～3.7%。方法简便快速,结果满意。
The axialview ICPAES method was applied to the certification analysis of standard reference materials (SRM or CRM) of phosphorusfree washing powder. The optimum conditions of instrumental operation, the difference of atomizing efficiency between the sample solution and blank solution and the interference of large amounts of sodium ion in the ICPAES determination of phosphorus were studied. Under the condition specified, the limit of detection of this method was found to be 0.007μg·ml-1. Linearity holds in the range of 0.007～25μg·ml-1 of phosphorus with a correlation coefficient of 0.9999. RSD′s obtained were in the range of 2.9% to 3.7%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2003年第9期525-526,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
