38033 HPLC serum calibration standard vitamin D3 vitamin D2

Vitamin D3/D2 Serum Calibration Standard

Order no.: 38033
  • 25-OH-vitamin D2
  • 25-OH-vitamin D3
25-OH-Vitamin D3/D2 in Serum/Plasma - HPLC


25-OH-Vitamin D3/D2 Serum Calibration Standard, lyophilised

This lyophilised calibrator from Chromsystems is based on human serum and should be used according to the instruction manual. It is designed to calibrate the measurement method in clinical diagnostics for the quantitative determination of 25-OH-vitamin D3 and 25-OH-vitamin D2 in serum/plasma. While following the instructions the calibrator should be handled and measured in the same manner as a patient specimen.

Technical Data

Method of Analysis



5 x 2 ml (lyoph.)


25-OH-vitamin D2, 25-OH-vitamin D3


Please note: Concentration values shown here are typical. For lot specific concentration values please refer to the product insert supplied with the materials. The product inserts can also be requested from us directly or downloaded from our website after login.

25-OH-Vitamin D3 µg/l
25-OH-Vitamin D2 µg/l


Carefully remove the metal seal and rubber stopper from the vials. Add exactly 2.0 ml of distilled water into each vial. Return the stopper and incubate for 10 to 15 minutes at room temperature. Swirl the vials to dissolve the contents until homogeneity.

Storage conditions

Stored below –18 °C and unopened, the lyophilised calibrator is stable until the expiry date specified on the vial labels. The reconstituted calibrator can be stored up to 1 week light protected and tightly capped at +2 to +8 C. If the calibrator cannot be used within this period, it should be aliquoted and stored frozen below -18 °C (up to 3 months). For more details about storage conditions please check your instruction manual.