Water-soluble vitamins chromatography

SONG w o, BEECHER G R and eitenmiller R R (2000), Modern Analytical Methodologies In Fat- and Water-soluble Vitamins. Chichester, Wiley. sprenger c, galensa r and jensen d (1999), Simultaneous determination of cellobiose, maltose and maltotriose in fruit juices by high-performance liquid chromatography with biosensor detection , Dtsch Lebensm Rundsch, 95, 499-504. [Pg.143]

FIGURE 16 HPLC chromatogram of water-soluble vitamins using ion-pair chromatography. LC conditions and peak identification are shown in the inset.The retention times of basic analytes (pyridoxine and thiamine) are strongly dependent of the concentration of ion-pairing reagent (1-hexanesulfonate) in the mobile phase. Reprinted with permission from Reference 17. [Pg.37]

Water-soluble vitamins in formulations have been determined by use of ion-pair chromatography. The vitamins include several B vitamins as well as niacin, folic acid, and ascorbic acid (565). Vitamins D and Da were rapidly separated on reverse phase columns (247) as are vitamins A, D, and E in multivitamin tablets (564). Addition of silver ions to the mobile phase has been shown to increase the flexibility inherent in RPC by complexing with the unsaturated bonds and thereby decreasing the retention factor. This effect is also observed with other unsaturated drug molecules including steroids (247). Vitamin A and related compounds have... [Pg.151]

The water-soluble vitamins niacinamide (a neutral compound), riboflavin (a neutral compound), niacin (an anion), and thiamine (a cation) were separated by micellar electrokinetic chromatography in 15 mM borate buffer (pH 8.0) with 50 mM sodium dodecyl sulfate. The migration times were niacinamide (8.1 min), riboflavin (13.0 min), niacin (14.3 min), and thiamine (21.9 min). What would the order have been in the absence of sodium dodecyl sulfate Which compound is most soluble in the micelles ... [Pg.627]

M Careri, R Cilloni, MT Lugari, P Manini. Analysis of water-soluble vitamins by high-performance liquid chromatography-particle beam-mass spectrometry. Anal Commun 33 159-162, 1996. [Pg.476]

K. Johansen and P. O. Edlund, Determination of water-soluble vitamins in blood and plasma by coupled-column hquid chromatography , /. Chromatogr. 506 471 -479 (1990). [Pg.295]

Application of pyrolysis-gas chromatography for the determination of pyridoxone, HC1 and other water-soluble vitamins, has been reported (103). [Pg.473]

E. Postaire, M. Cisse, M. D. le Hoang, and D. Pradeau, Simultaneous determination of water-soluble vitamins by over-pressure layer chromatography and photodensitometric detection, J. Pharm. Sci., 80 368(1991). [Pg.43]

M. C. Gennaro, Separation of water-soluble vitamins by reversed-phase ion-interaction-reagent high-performance liquid chromatography Application to multivitamin pharmaceuticals, J. Chromatogr. Sci., 29 410(1991). [Pg.245]

A. Amin, High-performance liquid chromatography of water-soluble vitamins. II. Simultaneous determination of vitamins B-l, B-2, B-6, and B-12 in pharmaceutical preparations, J. Chromatogr., 590 448 (1987). [Pg.402]

R. C. Williams, D. R. Baker, and J. A. Schmidt, Analysis of water-soluble vitamins by high-speed ion-exchange chromatography, J. Chromatogr. Sci., 77 618 (1973). [Pg.440]

Hou, W. Wang, E. Determination of water-soluble vitamins by hquid chromatography with a parallel dual-electrode electrochemical detector. Talanta 1990, 37, 841-844. [Pg.1531]

Figure 7.7. HPLC analysis of water-soluble vitamins in a beverage powder sample (Tang ) and a baby formula (Similac ) using ion-pair reversed-phase chromatography and UV detection. Reprinted with permission from reference 17.

At present, much effort is being devoted to simultaneous separation and detection of water-soluble vitamins. Undoubtedly, multiple water-vitamin analysis using LC as a separation method is effective with RP ion pair chromatography with acidified methanol or acetonitrile water as the mobile phase. Detection is performed using combined systems such as UV absorbance and fluorescence systems, depending on the vitamins to be determined. Analysis in real food... [Pg.2714]

Leporati, A., CateUani, D., Suman, M., Andreoli, R., Manini, R, and Niessen, W. M. A. 2005. Application of a liquid chromatography tandem mass spectrometry method to the analysis of water-soluble vitamins in Italian pasta. Anal. Chim. Acta 531 87-95. [Pg.126]

Gentih, A., Caretti, E, D Ascenzo, G., Marchese, S., Perret, D., Corcia, D., and Rocca, L. 2008. Simultaneous determination of water-soluble vitamins in selected food matrices by hqnid chromatography/electrospray ionization tandem mass spectrometry. Rapid Commun. Mass Spectrom. 22 2029-2043. [Pg.274]

Ekinci, R. and Kadakal, C. 2005. Determination of seven water-soluble vitamins in tar-hana, a traditional Turkish cereal food, by high-performance liquid chromatography. Acta Chromatogr. A. 15 289-297. [Pg.274]

Lu, B., Ren, Y, Huang, B., Liao, W., Cai, Z., and Tie, X. 2008. Simultaneous determination of four water-soluble vitamins in fortified infant foods by ultra-performance liquid chromatography coupled with triple quadrupole mass spectrometry. J. Chromatogr. Sci. 46 225-232. [Pg.277]

The solubility of the uncombined vitamins varies considerably. In the sample they may occur also linked as coenzymes, esterified in various ways or as derivatives which develop the same biological activity. Knowledge of this is vital for correct processing, isolation and determination. The water-soluble vitamins are in general more stable than those in the fat-soluble groups this facilitates chromatography. Nevertheless the precautions recommended under I should be observed. [Pg.292]

Heudi, O., Kilinc, T., and Fontannaz, P., 2005. Separation of water-soluble vitamins by reversed-phase high performance Kquid chromatography with ultra-violet detection Application to polivitamined premixes. Journal of Chromatography A. 1070 49 55. [Pg.239]

Vidovic, S., Stojanovic, B., Veljkovic, J., and Prazic-Arsic, L., 2008. Simultaneous determination of some water-soluble vitamins and preservatives in multivitamin syrup by validated stability-indicating high-performance liquid chromatography method. Journal of Chromatography A. 1202 155-162. [Pg.241]

Su, S.C., Chou, S.S., Hwang, D.F., Chang, P.C., and Liu, C.H., 2001. Capillary zone electrophoresis and micellar electrokinetic capillary chromatography for determining water-soluble vitamins in commercial capsules and tablets. Journal of Food Science. 66 10-14. [Pg.257]

Zafra-Gomez, A., Garballo, A., Morales, J.C., and Garcia-Ayuso. F.E., 2006. Simultaneous determination of eight water-soluble vitamins in supplemented foods by liquid chromatography. Journal of Agricultural and Food Chemistry. 54 4531-4536. [Pg.258]

Dinelli, G., and Bonetti, A., 1994. Micellar electrokinetic capillary chromatography analysis of water-soluble vitamins and multi-vitamin integrators. Electrophoresis. 15 1147-1150. [Pg.300]

Fotsing, L., Boulanger, B., Chiap, P., Fillet, M., Hubert, Ph., and Crommen, J., 2000. Multivariate optimization approach for the separation of water-soluble vitamins and related compounds by capillary electrophoresis. Biomedical Chromatography. 14 10-11. [Pg.301]

Fujiwara, S., Iwase, S., and Honda, S., 1988. Analysis of water-soluble vitamins by micellar electrokinetic capillary chromatography. Journal of Chromatography. 447 133-140. [Pg.301]

Goldschmidt, R.J., and Wolf, W.R., 2010. Simultaneous determination of water-soluble vitamins in SRM 1849 Infant/Adult Nutritional Formula powder by liquid chromatography-isotope dilution mass spectrometry. Analytical and Bioanalytical Chemistry. 397 471 81. [Pg.301]

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