OSCILLOPOLAROGRAPHIC DETERMINATION OF ARSENIC IN ALLOYS OF NONFERROUS METALS

被引：0
作者：
KOPANSKAYA, LS
SMELOV, VA
机构：
来源：
INDUSTRIAL LABORATORY | 1994年 / 60卷 / 02期
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new method for oscillopolarographic determination of arsenic in alloys of nonferrous metals, characterized by high speed and sensitivity, is based on reduction of As (V) to As (III) at room temperature by means of CuBr in an aqueous solution containing hydrochloric, sulfuric, and hydrobromic acids. At the same time, AsBr3 is extracted with benzene. Oscillopolarograms of the extract are recorded on a background of 0.75 M LiClO4 in acetone containing 0.23 M HCI and 8 vol.% H2O. No other element of the alloy is extracted under these conditions.
引用
收藏
页码：79 / 81
页数：3
相关论文
共 9 条
[1]  
AKBASOVA AD, POLAROGRAPHIC METHOD
[2]   DIFFERENTIAL-PULSE-POLAROGRAPHIC DETERMINATION OF ARSENIC AFTER EXTRACTION OF ARSENIC(III) CHLORIDE [J].
GEMMERCOLOS, V ;
NEEB, R .
FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1987, 326 (08) :766-769
[3]  
KOPANSKAYA LS, 1979, POLAROGRAPHY ENG ANA, P12
[4]  
LAKHANI R, 1985, J INDIAN CHEM SOC, V62, P82
[5]  
MINASYAN KV, 1965, ZAVODSK LAB, V31, P1326
[6]   DIRECT DETERMINATION OF ARSENITE BY DIFFERENTIAL PULSE POLAROGRAPHY IN THE PRESENCE OF LEAD(II) AND THALLIUM(I) [J].
REED, MA ;
STOLZBERG, RJ .
ANALYTICAL CHEMISTRY, 1987, 59 (03) :393-395
[7]  
SASIC MV, 1966, ANALYST, V91, P258
[8]  
ZOLOTOV YA, 1973, EXTRACTION HALIDE CO, P182
[9]  
1984, ANAL METALS, P43
1