铋盐—钼蓝分光光度法测定铁矿石中的微量磷  

Determination of microamount phosphorus in iron ore samples by Bismuth salts-molybdenum blue spectrophotometry

作　　者：刘金[1] 彭元[1] 程先忠[1] 

机构地区：[1]武汉工业学院化学与环境工程学院,湖北武汉430023

出　　处：《武汉工业学院学报》2012年第4期35-37,共3页Journal of Wuhan Polytechnic University

摘　　要：采用铋盐—钼蓝光度法对铁矿石中微量磷进行测定,确定了最佳测定条件。在HNO3介质中,最大吸收波长为690 nm,磷质量浓度在0—1.2 mg/L范围内符合比耳定律。此方法在室温下,显色速度快,产物稳定性好,线性范围宽。将该方法用于铁矿中微量磷的测定,结果令人满意。Microamount Phosphorus content in ore samples was determined by Bismuth salts-molybdenum blue spectrophotometfic method,and the optimum conditions were finalized.In the medium of HNO3,the maximum adsorption wave length is 690 nm,the mass concentration of phosphorus is 0-1.2 mg/L and conforms to Beer＇s law.Using the method had the advantages of high reactions rate,good stability and wide linearity range.This method could be used to determine microamount phosphorus in iron ore samples with satisfactory results.

关 键 词：磷 分光光度法 钼铋蓝 

分 类 号：O657.32[理学—分析化学]