Open AccessComponent Analysis of the Commercial Metal Extractant, Cyanex 302®, by GC–MS
Author(s) -
B. Menoyo,
M.P. Elizalde
Publication year - 2002
Publication title -
analytical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 73
eISSN - 1348-2246
pISSN - 0910-6340
DOI - 10.2116/analsci.18.141
Subject(s) - chemistry , phosphine oxide , reagent , phosphine , fragmentation (computing) , metal , oxide , tris , mass spectrum , gas chromatography–mass spectrometry , inorganic chemistry , chromatography , mass spectrometry , nuclear chemistry , organic chemistry , biochemistry , computer science , catalysis , operating system
The composition of the commercial reagent Cyanex 302 was investigated by GC-MS. Mass spectrometric studies allowed us to confirm that bis(2,4,4-trimethylpentyl)monothiophosphinic acid is the major compound and that a considerable amount of tris(2,4,4-trimethylpentyl)phosphine oxide is also present. The study also revealed that the extractant has three minor components. These were identified as bis(2,4,4-trimethylpentyl)phosphinic acid, bis(2,4,4-trimethylpentyl)phosphine oxide and bis(2,4,4-trimethylpentyl)dithiophosphinic acid. The mass spectra of these compounds are discussed and some fragmentation processes are postulated.