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在成份复杂的试样中测定常量钯的化学分析方法,主要有丁二酮肟重量法,间接氧化—还原滴定法和络合滴定法。这些方法的选择性都很差,需要预先将钯以丁二酮肟钯沉淀的形式与干扰元素过滤分离。丁二酮肟钯是疏松的絮状沉淀,体积很大,容易吸附杂质,过滤和洗涤都很困难。Raoot 提出利用 EDTA—Pd 络合物在弱酸性介
Chemical analysis methods for the determination of a constant amount of palladium in complex samples include the dimethylglyoxime gravimetric method, indirect oxidation-reduction titration and complexometric titration. The selectivity of these methods is very poor, you need to pre-palladium as palladium dimethylglyoxal precipitation precipitation and interference element filtration separation. Dimethylglyoxime Palladium is a loose flocculent precipitate, bulky, easy to adsorb impurities, filtration and washing are difficult. Raoot proposed the use of EDTA-Pd complexes in weakly acidic mediators