论文部分内容阅读
血液中的铅在酸性情况下和碘化钾作用形成铅的碘化物,然后用甲基异丁酮萃取,方法简便、精确度高,而且和阳极溶出极谱法(ASV)比较其结果也非常一致。 实验方法 1.试剂 盐酸(1.5N):特级。 磷酸,碘化钾(饱和水溶液):特级。 甲基异丁酮(MIBK):原子吸收用。 2.仪器:原子吸收分光光度计。 3.操作步骤
Lead in the blood, which forms lead iodide in acid condition with potassium iodide and then extracted with methyl isobutyl ketone, is simple, accurate and very consistent with anodic dissolution (Po) polarography (ASV). Experimental methods 1. Reagents hydrochloric acid (1.5N): special grade. Phosphoric acid, potassium iodide (saturated aqueous solution): Extra grade. Methyl isobutyl ketone (MIBK): for atomic absorption. 2. Instruments: Atomic Absorption Spectrophotometer. 3 steps