摘要
利用火焰原子吸收光谱法测定钙镁磷肥中镉的含量,探讨了仪器的工作条件,消化试剂的选择及加标回收率的测定.在最佳的工作条件下,钙镁磷肥中镉含量测定平均值为1.750 9μg/g,相对标准偏差(RSD)为5.6%,回收率为94.50%～103.71%.
Using flame atomic absorption spectrometric method for the determination of calcium magnesium phosphate in the cadmi- um content, the paper discussed the working condition of instrument, digestion reagent selection and the determination of recoveries of standard addition. In the best working condition, calcium magnesium phosphate determination of cadmium content in an average value of 1. 750 9 g / g, the relative standard deviation （ RSD ） was 5.6 %, the recovery rate was 94.50 % - 103.71%.
出处
《赣南师范学院学报》
2012年第3期76-79,共4页
Journal of Gannan Teachers' College(Social Science(2))
关键词
火焰原子吸收光谱法
钙镁磷肥
镉
flame atomic absorption spectrometry
calcium magnesium phosphate
cadmium
