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本文采用盐酸-六次甲基四胺溶液(pH5.5~5.6)作底液,铬蓝黑B(下称EBB)示波极谱测定水中的铝含量,在EP=-0.54V(VS·SCE)处产生一个对称的高灵敏的极谱波。线性范围5~100ng/ml.检出限3.0ng/ml。用于水中铝的测定,结果满意。
In this paper, hydrochloric acid - hexamethylenetetramine solution (pH5.5 ~ 5.6) as the bottom liquid, chromium blue black B (hereinafter referred to as EBB) oscillopolarographic determination of aluminum in water, EP = -0.54V (VS · SCE) to produce a symmetrical, highly sensitive polarographic wave. The linear range of 5 ~ 100ng / ml. Detection limit 3.0ng / ml. For the determination of aluminum in water, the results are satisfactory.