Mass SpectrometryNutritional Testing ItemsVitamins A, D, E & K Assay Kit

Vitamins A, D, E & K Assay Kit

Abbreviation：SERUM VA & VD & VE & VKMethod：LC-MS/MS

Product Overview
  • Analytes
    Vitamin K1、Vitamin A (Retinol) 、Vitamin D (25-Hydroxyvitamin D2 and 25-Hydroxyvitamin D3) 、Vitamin E (α-Tocopherol) 
  • Example Clinical Applications
    Early assessment of the risk of diseases associated with vitamin deficiency, including: 
    Night blindness and xerophthalmia 
    Rickets and osteomalacia 
    Infertility, growth retardation in children, impaired immunity, recurrent respiratory tract infections 
    Age-related disorders, including osteoporosis and cardiovascular and cerebrovascular diseases
  • Sample Type
    0.3 mL serum, stored at −20°C, protected from light. 
  • Background

    Fat-soluble vitamins include vitamins A, D, E, and K. They are insoluble in water but soluble in fats and organic solvents, hence the name "fat-soluble vitamins." In natural foods, these vitamins are usually present together with lipids, and their intestinal absorption is closely associated with lipid absorption. They pass through the lipid phase of cell membranes by passive diffusion and are excreted via the biliary system into the feces.
    When lipid absorption is impaired, the absorption of fat-soluble vitamins is reduced, resulting in corresponding deficiency disorders. Conversely, long-term excessive intake of fat-soluble vitamins may lead to toxic effects on the body.

  • Packing Specification
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