1989
DOI: 10.1111/j.1439-0442.1989.tb00728.x
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Evaluation of Elution Parameters in Reversed Phase HPLC for the Determination of Niacin Vitameres and Metabolites

Abstract: Summary A procedure for separation of nicotinic acid (NIA), nicotinamide (NAM), nicotinuric acid (NUR) and N1‐methyl‐nicotinamide (NMN) from biological samples by isocratic HPLC is described. The effects a) of different buffer systems (citrate, acetate, propionate), b) of different pH values (between pH 2.4 and 3.35), c) of different ionic concentrations of the eluents (between 10 and 100 mM) and d) of different methanol concentrations added to the eluent on retention times of the four compounds were tested. R… Show more

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Cited by 4 publications
(2 citation statements)
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“…These methods include spectroscopic technique [2][3][4], titration [5], microbiological methods [6] and HPLC [7][8][9][10][11][12]. For the analysis of complex biological samples, spectrometry and titration are not suitable, while microbiological methods are tedious and time-consuming.…”
Section: Introductionmentioning
confidence: 99%
“…These methods include spectroscopic technique [2][3][4], titration [5], microbiological methods [6] and HPLC [7][8][9][10][11][12]. For the analysis of complex biological samples, spectrometry and titration are not suitable, while microbiological methods are tedious and time-consuming.…”
Section: Introductionmentioning
confidence: 99%
“…1 to 3 or 2 to 4 (according to the different solid phase columns) which contained the vitameres were combined, brought to dryness and redissolved in 500 p1 deionized water. An amount of 50 pl was analyzed by HPLC (10).…”
Section: Cleaning By Solid Phase Extractionmentioning
confidence: 99%