应用流动注射导数光度法测定矿石中钒

收稿日期: 2007-11-18

修回日期: 2007-12-28

刊出日期: 2008-10-28

Determination of Vanadium in Ore Samples by Flow Injection-Derivative Spectrophotometry

Received Date: 18 November 2007

Revised Date: 28 December 2007

Publish Date: 28 October 2008

摘要: 在自行研制的一套流动注射分析装置上,实现了导数光度法测定金属矿样中钒含量.利用二安替比林基-(对二甲氨基)苯基甲烷与钒显色的适宜条件(λmax=552 nm),一次注样产生两个拐点导数光度值(△A),进样频率为110次/h,钒含量在0～0.18 μg/mL符合比尔定律.方法操作简单,用于矿石和炉渣样品中痕量钒的测定,结果令人满意.
- 流动注射分析 /
- 二安替比林基-(对二甲氨基)苯基甲烷 /
- 导数光度法 /
- 钒 /
- 矿样
Abstract: The paper presents the determination of trace vanadium in ore samples by derivative spectrophotometry, based on the chromatogenic rection of diantipyryl (p-dimethylamino) phenylmethane (DADM) with vanadium (λmax=552 nm), in a homemade flow injection system. Two inflexion points of the derivative absorbancy (△A) could be obtained in one injection. The method provides linear dynamic range of 0~0.18 μg/mL for vanadium with sampling frequency of 110 injections per hour. The method has been applied to the determination of trace vanadium in ores with satisfactory results.
- flow /
- injection /
- analysis /
- (FIA) /