火焰原子吸收法测定纯钠(钾)水玻璃中微量元素钙和铝

详细信息

Determination of Calcium and Aluminium in Water Glass of Pure Sodium (Potassium) by Atomic-Absorption Spectrometry

摘要: 提出了火焰原子吸收法测定纯钠(钾)水玻璃中微量元素钙和铝的方法。样品以HF-HClO₄消解,采用标准曲线法测定,所建方法校正曲线线性良好,相关系数为0.999,线性范围Ca:0~4μg/mL、Al:0~10μg/mL应用于实际样品分析,方法快速、简便、重现性及准确性较好。回收率分别为100%~105%(Ca)和90%~103%(Al),变异系数分别为1.7%~5.2%(Ca)和6.8%~9.5%(Al)。
- 水玻璃 /
- 钙、铝测定 /
- 原子吸收光谱
Abstract: A rapid and sensitive metnod for the determination of Ca and Al in water glass by AAS has ben develaped. The sample was dissolved in hydrofluoric acid and perchloric acid. Calibration curve of the method was lineal. Related coefficiet was 0.999. Lineal calibration range 0~4μg/mL (Ca) and 0~10μg/mL (Al). The satisfying results were abtained for the water glass determination of different plants. The velative standard deviations were 1.7~5.2% for Ca and 6.8-9.5% for Al and the recoveries were 100-105% for Ca and 90~103% for Al, respectively.
- water glass /
- calcium aluminium determination /
- atomic-absorption spectrometry