Flame Emission Measurement of Alkali and Alkali Earth Metals Using Atomic Absorption Apparatus (2) Determination of Na in River Water |
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| Authors: | Akio Zama Yukiko Dokiya Motohiro Fukami Shiro Aizawa Miwako Hamachi Shozo Toda |
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| Institution: | Dept. of Agr. Chem., Fac of Agr. , the Univ. of Tokyo , Tokyo, Japan , 113 |
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| Abstract: | Flame Emission measurement of Na using an ordinary atomic absorption apparatus is performed in order to determine the concentration of Na in the surface water of the river Izumi, which is used for the irrigation of rice field in summer time. The effect of acids and K on Na emission are studied and found to be eliminated when the proper conditions and positions of the flame is chosen. The recovery ratio of 8 ppm and 200 ppm Na added to the well water and river water, respectively, are found to be within 92–105%. This method can be applied to the routine analysis of Na in river water samples. |
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| Keywords: | Flame Emission Alkali and Alkali Earth Na River Water |
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