TY - JOUR
T1 - Supercritical fluid chromatography and extraction of fe(III) with hydroxamic acids
AU - McSweeney, C. C.
AU - Hutchinson, S.
AU - Harris, S.
AU - Glennon, J. D.
PY - 1997/6/30
Y1 - 1997/6/30
N2 - Representative aliphatic and aromatic mono-hydroxamic acids are shown to be separable by supercritical fluid chromatography (SFC) using methanol modified CO2 on a diol column. Evidence for ligand contamination by Fe(III) from the SFC system is provided, as the ligands are detected as Fe(III) chelates at 420 nm. The ligands and chelates studied were octanohydroxamic acid (OHA), Fe(OHA)3, benzohydroxamic acid (BHA), Fe(BHA)3, heptanohydroxamic acid (HHA), Fe(HHA)3, and a newly synthesised hydroxamic acid, perfluorooctanohydroxamic acid (PFOHA). When the ligands were examined using unmodified supercritical CO2 (SF-CO2) for their ability to extract Fe(III) from solid supports by supercritical fluid extraction (SFE), the fluorinated hydroxamic acid showed enhanced performance and solubility.
AB - Representative aliphatic and aromatic mono-hydroxamic acids are shown to be separable by supercritical fluid chromatography (SFC) using methanol modified CO2 on a diol column. Evidence for ligand contamination by Fe(III) from the SFC system is provided, as the ligands are detected as Fe(III) chelates at 420 nm. The ligands and chelates studied were octanohydroxamic acid (OHA), Fe(OHA)3, benzohydroxamic acid (BHA), Fe(BHA)3, heptanohydroxamic acid (HHA), Fe(HHA)3, and a newly synthesised hydroxamic acid, perfluorooctanohydroxamic acid (PFOHA). When the ligands were examined using unmodified supercritical CO2 (SF-CO2) for their ability to extract Fe(III) from solid supports by supercritical fluid extraction (SFE), the fluorinated hydroxamic acid showed enhanced performance and solubility.
KW - Hydroxamic acids
KW - Iron
KW - Supercritical fluid chromatography
UR - https://www.scopus.com/pages/publications/0030844627
U2 - 10.1016/S0003-2670(97)00240-7
DO - 10.1016/S0003-2670(97)00240-7
M3 - Article
AN - SCOPUS:0030844627
SN - 0003-2670
VL - 346
SP - 93
EP - 99
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
IS - 1
ER -