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ALEXYS Vitamins Analyzer





Vitamins A, D, E and K belong to the fat soluble vitamins. These vitamins are involved in several biochemical processes in the body. Also the water soluble vitamin C is involved in a number of enzymatic and collagen synthesis reactions. The analysis of vitamins is not limited to food and cosmetics but also in bodily fluids to discover diseases in an early stage.

Vitamin C (ascorbic acid, AA) is normally present in human as well as in animal plasma and tissue. The daily need is considered to be at least 70 mg and normal blood levels are between 28 and 85 μM. For example, the analysis of AA in plasma of geriatric patients reflects the quality of feeding status of such patients. The analysis with LCEC is very straightforward and highly reproducible with the use of hydrochinon as internal standard and DTT to stabalize the labile AA.

The ALEXYS Vitamin Analyzers have been optimized to meet the requirements for best sensitivity in HPLC with EC detection. Regardless of the sample matrix the ALEXYS offers a convenient and reliable way for routine analysis. Antec's system solutions include all necessary parts and chemicals to make your analysis work.

Application Notes

System configuration

For the analysis of vitamins we selected the SenCell. This cell has an excellent reproducibility and the best possible detection sensitivity. The ALEXYS system comprises the following parts:

  • AS 110 autosampler, cool
  • P6.1L HPLC pump
  • DECADE Elite electrochemical detector, SCC
  • SenCell with GC WE, HyREF
  • LC connection kit
  • USB connection kit, 3 portALEXYS
  • Clarity data acquisition software

Vitamin K requires an additional Reactor cell with a DECADE DCC for pre-reduction of the quinone.


Part no Description
180.0078W ALEXYS Vitamins Analyzer for vitamin A, C, D, E, and Q10
180.0079W ALEXYS Vitamins Analyzer for vitamin K