云南化工2012，Vol.39Issue(4)：25-28,4.
磷钒钼杂多酸-结晶紫水相分光光度法测定锡铅焊料中的磷
Molybdovanadophosphoric heteropoly acid-Crystal Violet Aqueous Phase Spectrophotometric Determination of Phosphorus in Tin-lead Solder
王燕玲1
作者信息
- 1. 云南锡业股份公司质量监督部,云南个旧661000
- 折叠
摘要
Abstract
Motybdovanadophosphoric heteropoly acid-crystal violet aqueous phase spectrophotometric determination of trace phosphorus in the tin-lead solder was studied. In a medium of 0. 1 mol/L sulfuric acid, under the existence of polyvinyl alcohol, making use of erystal violet molybdovanadophosphoric and heteropoly acid to form a soluble purple ion-association complex, the photometry was carried out. The tests proved that ： the test solution containing 0 - 0.32 μg./mL phosphorus is in line with the Lambert-Beer law, kmax =545nm, the apparent molar absorptivity e545 = 1.78 × 105 , determination range from 0. 000 5% to 0.010 0%. Color conditions, the interference of coexisting ions, the recovery of spiked, the investigation and results of the preeision of control were discussed in more detail.关键词
锡铅焊料/磷钒钼杂多酸/结晶紫/光度法Key words
tin-lead solder/molybdovanadophosphorie heteropoly acid/crystal violet/photometric分类
化学化工引用本文复制引用
王燕玲..磷钒钼杂多酸-结晶紫水相分光光度法测定锡铅焊料中的磷[J].云南化工,2012,39(4):25-28,4.
