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本工作包括三个内容: 1.海水中锌的测定 用锌的次灵敏线3076A研究了海水中各种盐类的干扰。实验表明,氯化钠、氯化钾、硫酸钠、氯化钙尤其是氯化镁对锌有抑制作用。加入柠檬酸即可消除这些干扰,生成的氯化氢在原子化以前逸出管外,柠檬酸镁加热后分解成氧化镁,不再产生干扰,锌的回收率以10—20％提高到95％以上,所提出的方法适用于海水中含
The work consists of three parts: 1. Determination of zinc in seawater The zinc subsoil sensitive line 3076A studied the interference of various salts in seawater. Experiments show that sodium chloride, potassium chloride, sodium sulfate, calcium chloride, especially magnesium chloride on zinc inhibition. The addition of citric acid eliminates these disturbances and the resulting hydrogen chloride escapes outside the tube prior to atomization. Magnesium citrate decomposes to magnesia upon heating and no longer interferes with the recovery of zinc from 10 to 20% above 95% , The proposed method is suitable for seawater containing