摘要
碱性条件下，锰（Ⅱ）与甲基紫、溴化钾反应形成紫色缔合物，吸收峰位于580nm,表观摩尔吸光系数 穖ol-1穋m-1，锰浓度在20～160靏/L范围内遵守比耳定律。本法操作简便，灵敏度高，用于试样中痕量锰的测定，结果令人满意。
Manganese reacts with methyl violet and potassium brom ide in alkaline medium to form a violet complex. The ion-association complex ex hibits maximum absorption at 580 nm with an apparent molar absorptivity of 1.6× 106 Ｌ·mol-1·cm-1. Beer′s law is obeyed in the range of 20-160 靏/L for Manganese(Ⅱ). The method is highly sensitive and easy to operate. It has been applied for the determination of Mn(Ⅱ) in water and soil samples with satisfactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2001年第9期1021-1023,共3页
Chinese Journal of Analytical Chemistry
基金
福建省科委三项科技费用资助课题
