1995
DOI: 10.1016/0021-9673(94)00631-i
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High pH mobile phase effects on silica-based reversed-phase high-performance liquid chromatographic columns

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Cited by 156 publications
(109 citation statements)
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“…More precisely, the limited hydrolytic stability of the siloxane bond has encouraged the search for new, more stable silica based stationary phases [3,4].…”
Section: Introductionmentioning
confidence: 99%
“…More precisely, the limited hydrolytic stability of the siloxane bond has encouraged the search for new, more stable silica based stationary phases [3,4].…”
Section: Introductionmentioning
confidence: 99%
“…Silica support packing is the most popular packing material for packing due to its ideal physical properties.This permits the formation of efficient packed beds that are stableunder high pressuresand longer run.Silica based packing provide column with higher efficiency low back pressure and longer lifetime [19] . Loosely packed column, chemical interaction on the support of columnand plugged column due to adsorbed sample components decreases the life of column.Silica based column should not be used at pH above 8 because at such higher pH silica beds gets dissolve due to attack on bond between silane Si-O-Si group.…”
Section: Columnpackingmentioning
confidence: 99%
“…Os grupos silanóis e siloxanos (ºSi-O-Siº) reagem com estas fases móveis, sofrendo dissolução, causando perda da fase estacionária e, eventualmente, colapso da estrutura do leito da coluna 5,6 . Este problema de instabilidade em soluções de pH baixo 7 ou alto [8][9][10] é muito importante em CLAE-FR, sendo que soluções com pH 2,5 ou pH 9,0 são recomendadas 11 para a análise de diversos compostos contendo, em sua estrutura, grupos ácidos como carboxílicos e fenólicos e básicos como aminas e amidas, tais como os encontrados em, por exemplo, fármacos e pesticidas.…”
Section: Suportesunclassified