1999
DOI: 10.1016/s0021-9673(99)00622-6
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Anion-exchange separation and determination of bisphosphonates and related analytes by post-column indirect fluorescence detection

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Cited by 62 publications
(21 citation statements)
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“…The use of chromatographic methods introduced several problems: 1) UV-Vis or fluorescent detection can not be used owing to lack of chromophores in the molecule; 2) conventional reversed-phase liquid chromatography (RP-HPLC) is not a good choice, because aminobisphosphonates are hydrophilic and ionized in the pH range used with reversed-phase silica based columns and strong metal chelating ability causes adsorption problems; 3) gas chromatography can not be used due to insufficient volatility of aminobisphosphonates. Several high-performance liquid chromatographic methods based on post-or precolumn derivatization of bisphosphonates have been developed [3][4][5][6][7][8][9][10][11]. For example, Ion-pair chromatography with massspectrometric [12], refractive index [13] and conductometric [14] detection have been proposed.…”
Section: Introductionmentioning
confidence: 99%
“…The use of chromatographic methods introduced several problems: 1) UV-Vis or fluorescent detection can not be used owing to lack of chromophores in the molecule; 2) conventional reversed-phase liquid chromatography (RP-HPLC) is not a good choice, because aminobisphosphonates are hydrophilic and ionized in the pH range used with reversed-phase silica based columns and strong metal chelating ability causes adsorption problems; 3) gas chromatography can not be used due to insufficient volatility of aminobisphosphonates. Several high-performance liquid chromatographic methods based on post-or precolumn derivatization of bisphosphonates have been developed [3][4][5][6][7][8][9][10][11]. For example, Ion-pair chromatography with massspectrometric [12], refractive index [13] and conductometric [14] detection have been proposed.…”
Section: Introductionmentioning
confidence: 99%
“…Na presença dos BP's o alumínio liga-se a estes compostos formando um complexo mais estável e que não fluoresce. A passagem do complexo alumínio-morin pelo detector de fluorescência gera absorção ao passo que o complexo BP-alumínio, ao passar pelo detector, causa diminuição da absorção, registrando um pico negativo 43,44 . A detecção por fluorescência com derivatização pós-coluna foi descrita por Kwong e colaboradores 45 para a análise de comprimidos de alendronato.…”
Section: Cromatografia Líquida De Alta Eficiência (Hplc)unclassified
“…Mas logo foram observados seus efeitos fisiológicos, como a capacidade de inibir a reabsorção óssea. A partir desta observação, iniciaram-se pesquisas para síntese de diversos outros bisfosfonados e avaliação de seus efeitos fisiológicos 3 . O alendronato de sódio é um potente inibidor específico da reabsorção óssea mediada por osteoclastos.…”
Section: Características Farmacológicasunclassified