25-OH Vitamin D 3 /D 2 - Orgentec
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25-OH Vitamin D3/D2 is an ELISA-based, automated, in-vitro test system for the quantitative determination of the total concentration of 25-OH vitamin D3 and 25-OH vitamin D2 in human serum or plasma (EDTA plasma, heparin plasma, citrate plasma) for the evaluation of vitamin D levels.
This test uses an antibody that binds both forms of vitamin D equally well and with high affinity. Vitamin D3 (cholecalciferol) is produced in the skin under irradiation with UV-B rays from the sun. It is metabolized to 25-OH vitamin D3 in the liver. Vitamin D2 (ergocalciferol) is mostly produced synthetically and is used as a dietary supplement. It is also converted to its corresponding 25-OH derivative by the liver. For reliable determination of the total vitamin D concentration, a special sample buffer is used to release the 25-OH vitamin D3 and 25-OH vitamin D2 from the vitamin D binding protein complex in the serum. No separate sample preparation steps are required.
Specifications
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| Instruction for Use Revision 7. Earlier versions and additional languages can be found in the document archive. | |||||||||||||||
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Test ID: 25HDN 25-Hydroxyvitamin D2 And D3, Serum