To establish an HPLC method for the simultaneous determination of water-soluble and fat-
soluble vitamins. Method: Without triggering the gradientan injection of Vial B fat-soluble …

A new fully automated method for the determination of metabolites of Vitamin D3 and
Vitamins A and E has been developed. A robotic station for liquid–liquid extraction …

Aims: To demonstrate an analysis for vitamin B6 from commercial aqueous nutritional drinks
and solid tablets, utilizing isocratic conditions with high performance liquid chromatography …

A rapid method for the determination of VA, VD (VD2, VD3) and VE (α-, β-, γ-, and δ-vitamin
E) in foods for special medical purposes was established using online solid phase extraction …

The level of vitamin B group in human serum is an important index of human health. Among
B vitamins, cyanocobalamin in serum is unstable and its content is extremely low. Rapid and …

In this study a novel, simple and rapid reversed-phase high performance liquid
chromatography (HPLC) procedure for simultaneous determination of vitamins A and E …

We have applied a quick and convenient method for determining water-soluble vitamins
excreted in human urine. We found that the Sep-Pak C18 cartridge was useful for …

The aim of this study was to develop and validate methods for the determination of vitamins
B2, B9, E and A in serum using liquid chromatography with mass spectrometry (MS) …

In the present study, the RP-HPLC based separation and quantification of four common
vitamins: B1, B2, B6, and folic acid in multivitamin pharmaceutical dosages was performed …

A new labeling reagent for vitamin analysis, 2-amino-10-ethyl acridine ketone (AEAO), has
been synthesized and successfully applied to the analysis of vitamin B3 and vitamin B7 in …