The ARK™ Methotrexate Assay is a highly specific homogeneous enzyme immunoassay for the accurate quantitative determination of methotrexate in human serum or plasma. The assay provides reliable results for the monitoring of methotrexate levels even at concentrations as low as 0.05 µmol/L. More importantly, the assay has a very low cross-reactivity to 7-Hydroxymethotrexate, the major metabolite of Methotrexate.
The liquid reagents, calibrators and controls are ready to use directly out of the fridge. Pack sizes have been designed to match the typical workloads in a routine lab. ARK™ Methotrexate reagents, calibrators and controls are CE marked and suitable for all major clinical chemistry analyzers. Applications are available for a number of instruments, including Abbott ARCHITECT®, Beckman Coulter AU Series, Roche Cobas® and Siemens ADVIA®.