THE CATALYTIC-THERMOMETRIC DETERMINATION OF MOLYBDENUM IN STEELS BASED ON THE HYDROGEN-PEROXIDE IODIDE INDICATOR REACTION

被引：2
|
作者：
CAMANAS, RMV [1 ]
MORA, IDM [1 ]
RAMOS, GR [1 ]
ALVAREZCOQUE, MCG [1 ]
机构：
[1] UNIV VALENCIA,FAC QUIM,DEPT QUIM ANALIT,E-46100 BURJASSOT,SPAIN
来源：
THERMOCHIMICA ACTA | 1990年 / 158卷 / 02期
关键词：
D O I：
10.1016/0040-6031(90)80069-B
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The MoVI-catalysed hydrogen peroxide-iodide reaction has been optimised for thermometry in an HCl medium using the initial slope method. The substitution of sodium perborate by H2O2 and the conversion of the reaction to a process showing a Landolt effect are considered and discussed. The linear range extended from 0.2 μg MoVI ml-1to 1.2 μg MoVI ml-1 with a detection limit of 0.06 μg MoVI ml-1. Interferences were also studied. The optimised procedure was applied to the evaluation of molybdenum in steels after extraction with α-benzoinoxime in chloroform. © 1990.
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页码：215 / 224
页数：10
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