摘要
在 pH为 7.5 0的条件下 ,Pd2 +与甲基紫、溴化钾反应形成紫色缔合物 ,吸收峰位于 5 80nm ,Pd2 +浓度在 10 0～ 80 0 μg/L范围内与吸光度成正比 ,表观摩尔吸光系数ε580 =2 .4× 10 5L/ (mol·cm) .方法操作简便 ,灵敏度高 ,用于试样中痕量Pd2 +的测定 ,结果令人满意 .
Palladium(Ⅱ) reacts with methyl violet and potassium bromide in the presence of NH\-3 to form a violet complex. The ion-association complex exhibits maximum absorption at 580 nm with an apparent molar absorptivity of 2.4×10\+5 L/(mol·cm). Beer′s law is obeyed in the range of 100～800 μg/L for Palladium(Ⅱ). The method is easy to operation and highly sensitive. It has been applied for the determination of Palladium(Ⅱ) in samples with satisfactory results.
出处
《分析测试技术与仪器》
CAS
2001年第3期163-165,共3页
Analysis and Testing Technology and Instruments
基金
福建省省科委三项科技费用资助课题
