Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

High-performance liquid chromatography vitamins

K Shibata. Ultramicro-determination of lV -methylnicotinamide in urine by high-performance liquid chromatography. Vitamins (Japan) 61 599-604, 1987. [Pg.372]

Kodaka, K., Inagaki, S., Ujie, T., Ueno, T., and Suda H., Determination of total vitamin C in foods by high-performance liquid chromatography. Vitamin, 59(5), 451-455, 1985. [Pg.431]

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]

Werner ER, Wachter H, Werner Felmayer G (1997) Determination of tetrahydrobiopterin biosynthetic activities by high-performance liquid chromatography with fluorescence detection. In McCormick DB, Suttie JW, Wagner C (eds) Methods in Enzymology Vitamins and Coenzymes. Academic Press, San Diego, pp 53-61... [Pg.702]

Haroon, Y., Shearer, M. J., Rahim, S., Gunn, W. G., Mcenery, G. and Barkhan, P. 1982. The content of phylloquinone (vitamin Kd in human milk, cows milk and infant formula foods determined by high-performance liquid chromatography. J. Nutr. 112, 1105-1117. [Pg.397]

Deficiencies of folic acid and vitamin B1 are relatively common. Whenever macrocytic anemia is present, evaluation of these two vitamins is necessary 10 determine the cause of the condition, The standard method of measuring folic acid has been the microbiological assay (Bailey et al.. 19821. which can be used to measure folic acid in serum, blood, tissues, and foods. Improved high performance liquid chromatography (HPLC) methods have... [Pg.669]

Currently, high-performance liquid chromatography (HPLC) methods have been widely used in the analysis of tocopherols and tocotrienols in food and nutrition areas. Each form of tocopherol and tocotrienol can be separated and quantified individually using HPLC with either a UV or fluorescence detector. The interferences are largely reduced after separation by HPLC. Therefore, the sensitivity and specificity of HPLC methods are much higher than those obtained with the colorimetric, polarimetric, and GC methods. Also, sample preparation in the HPLC methods is simpler and more efficiently duplicated than in the older methods. Many HPLC methods for the quantification of tocopherols and tocotrienols in various foods and biological samples have been reported. Method number 992.03 of the AOAC International Official Methods of Analysis provides an HPLC method to determine vitamin E in milk-based infant formula. It could probably be said that HPLC methods have become dominant in the analysis of tocopherols and tocotrienols. Therefore, the analytical protocols for tocopherols and tocotrienols in this unit are focused on HPLC methods. Normal and reversed-phase HPLC methods are discussed in the separation and quantification of tocopherols and tocotrienols (see Basic Protocol). Sample... [Pg.479]

Gimeno, E., Calero, E Castellote, A.I., Lamuela-Raventos, R.M., Torre, M.C., and Lopez-Sabater, M.C. 2000a. Rapid determination of vitamin E in vegetable oils by reversed-phase high-performance liquid chromatography. J. Chromatogr. A 881 251-254. [Pg.490]

M Zahar, DE Smith. Vitamin A quantification in fluid dairy products rapid method for vitamin A extraction for high performance liquid chromatography. J Dairy Sci 73 3402-3407, 1990. [Pg.394]

H Indyk, DC Woollard. The determination of vitamin D in milk powders by high performance liquid chromatography. NZ J Dairy Sci Technol 19 19-30, 1984. [Pg.394]

B Stancher, F Zonta. High-performance liquid chromatography of the unsaponifiable from samples of marine and freshwater fish fractionation and identification of retinol (vitamin A)) and dehydroretinol (vitamin A2) isomers. J Chromat 287 353-364, 1984. [Pg.396]

JKG Kramer, L Blais, RC Fouchard, RA Melnyk, KMR Kallury. A rapid method for the determination of vitamin E forms in tissues and diet by high-performance liquid chromatography using a normal-phase diol column. Lipids 32 323-330, 1997. [Pg.396]

PV Bhat, PR Sunderesan. High-performance liquid chromatography of vitamin A compounds. CRC Crit Rev Anal Chem 20 197-219, 1988. [Pg.396]

RE Lawn, JR Harris, SF Johnson. Some aspects of the use of high-performance liquid chromatography for the determination of vitamin A in animal feeding stuffs. J Sci Food Agric 34 1039-1046, 1983. [Pg.397]

DC Egberg, JC Heroff, RH Potter. Determination of all-trans and 13-cis vitamin A in food products by high-performance liquid chromatography. J Agric Food Chem 25 1127-1132, 1977. [Pg.397]

AJ Speek, CR Temalilwa, J Schrijver. Determination of /3-carotene content and vitamin A activity of vegetables by high-performance liquid chromatography and spectrophotometry. Food Chem 19 65-74, 1986. [Pg.398]

H Hasegawa. Vitamin D determination using high-performance liquid chromatography with internal standard-redox mode electrochemical detection and its application to medical nutritional products. J Chromat 605 215-220, 1992. [Pg.400]

SL Reynolds, HJ Judd. Rapid procedure for the determination of vitamins A and D in fortified skimmed milk powder using high-performance liquid chromatography. Analyst 109 489-492, 1984. [Pg.400]

T Okano, A Takeuchi, T Kobayashi. Simplified assay of vitamin D2 in fortified dried milk by using two steps of high-performance liquid chromatography. J Nutr Sci Vitaminol 27 539-550,1981. [Pg.400]

AJ Speek, J Schrijver, WHP Schreurs. Vitamin E composition of some seed oils as determined by high-performance liquid chromatography with fluorometric detection. J Food Sci 50 121-124,1985. [Pg.400]

HE Indyk. Simplified saponification procedure for the routine determination of total vitamin E in dairy products, foods and tissues by high-performance liquid chromatography. Analyst 113 1217-1221, 1988. [Pg.400]

DC Woollard, AD Blott. The routine determination of vitamin E acetate in milk powder formulations using high-performance liquid chromatography. J Micronutr Anal 2 97-115, 1986. [Pg.400]

T-S Shin, JS Godber. Improved high-performance liquid chromatography of vitamin E vitamers on normal-phase columns. J Amer Oil Chem Soc 70 1289-1291, 1993. [Pg.401]

F Zonta, B Stancher. Quantitative analysis of phylloquinone (vitamin K,) in soy bean oils by high-performance liquid chromatography. J Chromat 329 257-263, 1985. [Pg.401]

MM Delgado Zamarreno, A Sanchez Perez, MC Gomez Perez, MA Fernandez Moro, J Hernandez Mendez. Determination of vitamins A, E and K, in milk by high-performance liquid chromatography with dual amperometric detection. Analyst 120 2489-2492, 1995. [Pg.401]

ZH Gao, RG Ackman. Determination of vitamin K, in canola oils by high performance liquid chromatography with menaquinone-4 as an internal standard. Food Res Int 28 61-69, 1995. [Pg.401]

M Careri, A Mangia, P Manini, N Taboni. Determination of phylloquinone (vitamin K,) by high performance liquid chromatography with UV detection and with particle beam-mass spectrometry. Fre-senius J Anal Chem 355 48-56, 1996. [Pg.401]

S Albald-Hurtado, S Novella-Rodnguez, MT Veciana-Nogues, A Marine-Font. Determination of vitamins A and E in infant milk formulae by high-performance liquid chromatography. J Chromat A 778 243-246, 1997. [Pg.402]

DA Sampson, LA Eoff, XL Yan, K Lorenz. Analysis of free and glycosylated vitamin B6 in wheat by high-performance liquid chromatography. Cereal Chem 72 217-221, 1995. [Pg.473]

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]

Figure 10.9 Chromatograms of fortified coconut oil obtained by using (a) normal-phase HPLC and (b) GPC/normal-phase HPLC. Peak identification is as follows 1 (a,b), DL-a-toco-pheryl acetate, 2 (b), 2,6-di-terf-butyl-4-methylphenol 2 (a) and 3 (b), retinyl acetate 3 (a) and 4 (b), tocol 4 (a) and 5 (b), ergocalciferol. Reprinted from Analytical Chemistry, 60, J. M. Brown-Thomas et al., Determination of fat-soluble vitamins in oil matrices by multidimensional high-performance liquid chromatography , pp. 1929-1933, copyright 1988, with permission from the American Chemical Society. Figure 10.9 Chromatograms of fortified coconut oil obtained by using (a) normal-phase HPLC and (b) GPC/normal-phase HPLC. Peak identification is as follows 1 (a,b), DL-a-toco-pheryl acetate, 2 (b), 2,6-di-terf-butyl-4-methylphenol 2 (a) and 3 (b), retinyl acetate 3 (a) and 4 (b), tocol 4 (a) and 5 (b), ergocalciferol. Reprinted from Analytical Chemistry, 60, J. M. Brown-Thomas et al., Determination of fat-soluble vitamins in oil matrices by multidimensional high-performance liquid chromatography , pp. 1929-1933, copyright 1988, with permission from the American Chemical Society.
J. M. Brown-Thomas, A. A. Moustafa, S. A. Wise and W. E. May, Determination of fat-soluble vitamins in oil matrices by multidimensional high-performance liquid chromatography , Anal. Chem. 60 1929-1933 (1988). [Pg.247]

See other pages where High-performance liquid chromatography vitamins is mentioned: [Pg.33]    [Pg.384]    [Pg.155]    [Pg.699]    [Pg.700]    [Pg.371]    [Pg.395]    [Pg.397]    [Pg.403]    [Pg.11]    [Pg.5]   
See also in sourсe #XX -- [ Pg.97 ]



SEARCH



Liquid chromatography Vitamin

Water-soluble vitamins high-performance liquid chromatography

© 2024 chempedia.info