Evaluation of a kinetic test kit for the determination of magnesium in bovine serum or plasma.

The performance of a new kinetic assay test kit for the determination of magnesium in plasma or serum has been evaluated, using bovine plasma samples. The results obtained were compared with the results from a standard atomic absorption spectrophotometry method and a commercial colorimetric test kit. The kinetic kit compared favourably with the conventional methods and generally gave results with greater precision.