Linearity and calibration verification products
VALIDATE VIT D is FDA listed, frozen liquid, ready-to-use and offers 5 or 6 levels of instrument specific, complete reportable range coverage – eliminating the need for manual dilutions.
Independent quality control for specialty IA testingBio-Rad’s Lyphochek Specialty Immunoassay Control is an independent, multi-analyte control that helps support reliable test results in the early detection of chronic diseases. Contains Procalcitonin (PCT), Intact PTH, 25-OH Vitamin D and other complex analytes to monitor precision of specialty lab testing. Connect to over 29,000 labs worldwide with Unity Peer Program to help confidently report patient results and simplify compliance.
Automated assay for vitamin D sufficiency
An automated assay for quantitatively determining the total  25-hydroxyvitamin D [25(OH)D] in human serum and plasma. The results are used  with other clinical and laboratory data to assist the clinician in assessing  vitamin D sufficiency.  The sum of 25(OH)D3 and 25(OH)D2  is considered the best clinical indicator of vitamin D status. 
Equimolar vitamin D detection
ST AIA-PACK 25-OH Vitamin D is designed for the quantitative  measurement of total 25-hydroxyvitamin D on Tosoh AIA Analyzers and has no  Biotin interference. Tosoh’s antibody has equimolar affinity (specificity) for  both 25-OH Vitamin D2 and D3, standardized to the reference method and  accurately measures the total amount Vitamin D.
Specialty testing simplified
DiaSorin’s fully-automated LIAISON 25-OH Vitamin D TOTAL  Assay offers fast, reliable results with excellent specificity providing labs  the opportunity to consolidate a wide range of specialty testing on a dedicated  platform.
Elevate laboratory performance
Abbott's ARCHITECT and Alinity i 25-OH Vitamin D assay is a  CMIA assay used for the quantitative determination of 25-hydroxyvitamin D  (25-OH vitamin D) in human serum and plasma on the ARCHITECT and Alinity i  analyzers.  Abbott Vitamin D assays do not use the free-capture  streptavidin assay format and are not susceptible to biotin interference.
Testing that’s essential for bone health
Vitamin D is involved in the intestinal absorption of  calcium and the regulation of calcium homeostasis. The Atellica IM Vitamin D  Total assay is for in vitro diagnostic use in the quantitative determination of  total 25(OH)vitamin D in human serum/plasma, and aids in the determination of  Vitamin D sufficiency.
Binding assay
The Elecsys  Vitamin D total III binding assay is used for the in vitro quantitative  determination of total 25-hydroxyvitamin D to aid in the assessment of vitamin  D sufficiency in adults. Results can be produced in as little as 18 minutes on  cobas e immunoassay analyzers. 
Testing program
With WSLH Proficiency Testing, your laboratory can enroll in  our Vitamin D proficiency testing program. This program is part of the  Immunoassay Chemistry B panel and includes 3 lyophilized serum samples, shipped  twice per year. For details, please visit our Clinical PT Catalog and price  list.
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