苯芴酮-溴代十六烷基三甲胺分光光度法测定热镀锌合金中锑

The Phenylfluorone-cetyltrimethyla-mmonium Spectrophotometric Method for Determination of Sb(Ш) Content of Hotly Zinc-coate Alloy

采用苯芴酮-溴代十六烷基三甲胺分光光度法直接测定热镀锌合金中的锑,此络合物在波长510 nm处有最大吸光度,锑含量0～125μg/50 mL符合比尔定律,摩尔吸光系数∑Sb=1.31×10 4.该法快速,准确,选择性好,适用于热镀锌合金中锑的测定.

Phenylfluorone-cetyhrimethyla-mmonium bromide Spectrophotometry method were adopted to determinate Sb（Ⅲ）of hotly Zinc-coate alloy , the colour three-component chelate compound has biggest absorption wavelength（λmax） for 510 nm,Sb（Ⅲ）0-125μg/50 mL accords with Biller law, The mole absorption cofficient is ∑Sb= 1.31× 10^4. the determination is rapid.accurate and well choice, suitable determination Sb（Ⅲ）of hotly Zinc-coatealloy.