影响涂料中的“可溶性”铅含量测定的因素

Factors Affecting Determnation of the Soluble Lead Content in Paints

用火焰原子吸收法测定涂料中“可溶性”铅含量,改变萃取用盐酸的酸度、萃取时间以及所测涂料颗粒的大小,考察影响测试结果的因素。试验表明测试结果受这些因素的影响非常明显。

The ＂soluble＂ lead content in paints is determined by use of flame atomic absorption spectrometric method. The factors that affect the test results, in terms of acidity of chlorhydric acid solution for extraction, the extraction time and particles size of paint are studied. It is found that test results are affected by these factors significantly.