【摘要】 冰雪样品离子含量低，用原子吸收光谱测定阳离子，有些离子不能得到满意的结果，改用撞击球替代绕流器雾化，各离子吸光度大大提高，通过一系列试验对比，结果Ｃａ２＋吸光度提高１．２倍，Ｍｇ２＋、Ｎａ＋、Ｋ＋吸光度提高了２至３倍，解决了冰雪样品离子含量低，测定难的问题更多还原

【Abstract】 The ion concentrations in snow and ice are sometimes too low to be determined accurately by atomic absorption spectrophotometry. However, the absorbance can be increase rapidly by using the impact bead instead of plastic flow spoiler. The results of a series of control experiments show a 1.2fold improvement has been made in absorbance for Ca\+2+, 23fold improvment for Mg\+2+,Na\++ and K\++, which solves the measuring problems of snow and ice samples with low ion concentrations.更多还原