Waters Corporation announced that its fully-validated Waters® MassTrak™ Vitamin D Solution is now CE-marked in accordance with IVD Directive 98/79/EC for the quantitative measurement of 25(OH) D2 and D3 (25-OH-VitD) from human plasma and serum. The IVD LC-MS/MS system solution is a complete solution consisting of reagents and consumables, instrumentation, and software and support services for clinical laboratories routinely measuring vitamin D in patient samples. The Vitamin D solution is currently only available for sale in Europe. The MassTrak Vitamin D Solution is configured with the Waters ACQUITY UPLC® I-Class/Xevo® TQD IVD System, the MassTrak Vitamin D Kit and MassLynx® (IVD) Mass Spectrometry Software. The MassTrak Vitamin D Kit provides metrological traceability to the National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) 2972, enabling standardization and lot- to-lot consistency for an easy comparison of results from multiple laboratories. For high-volume vitamin D testing, the system is designed for use with an automated liquid handler and custom pipetting script provided with the kit.