火焰吸收法连续测定降解水中钾、钠、钙、镁等元素

Continuous measurements for kalium,sodium,calcium and magnesium elements contained in degrading water by flame atomic absorption method

采用火焰原子吸收法，将消电离剂硝酸铯与释放剂硝酸镧铵按一定比例先配成混合溶液，然后再在钾、钠、钙、镁等元素的标准混合溶液中，加入一定量的硝酸铯．硝酸镧混合液，即可对钾、钠、钙、镁等元素进行连续测定，其精密与准确度比一般方法高1．8～2．2倍。

The author adopted method of flame atomic absorption, to prepare the mixed liquor with ionization buffer cesium nitrate and releasing agent lanthanum nitrate ammonium according to certain proportion. Added a certain amount of mixed liquor into the standard mixed liquor contaning kalium, sodium, calcium and magnesium elements. Then carried out the continuous measurements for the elements mentioned above and its precision and accuracy high 1.8 ～ 2.2 times than conventional method.