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1 引言 在磷肥的生产过程中,对其原料、中间产物及产品中的磷、钙、镁、钾、钠、铁和铝等元素的分析是十分重要的。通常需要用重量分析,原子吸收光谱法以及紫外可见分光光度法等分析手段,操作繁琐、费时。我们用电感耦合等离子体发射光谱法(ICP-AES)同时测定磷矿,磷肥样品中的高含量磷和其他六种常量元素,大大缩短了分析时间,方便了工业生产和工艺研究。同时,采用基体匹配和紧密内插的方法,改
1 Introduction Phosphate fertilizer in the production process, its raw materials, intermediates and products in the phosphorus, calcium, magnesium, potassium, sodium, iron and aluminum and other elements of the analysis is very important. Usually need to use gravimetric analysis, atomic absorption spectrometry and UV-visible spectrophotometry and other means of analysis, cumbersome and time-consuming operation. We use inductively coupled plasma-atomic emission spectrometry (ICP-AES) to simultaneously determine high levels of phosphorus and six other macroelements in phosphate rock and phosphate fertilizer samples, greatly reducing analysis time and facilitating industrial production and process studies. At the same time, the use of matrix matching and close interpolation method, change