INTERFERENCE-RESISTANT COMPOSITION, DEVICE, METHOD OF PREPARING IT AND METHOD FOR DETERMINING A PEROXIDATIVELY ACTIVE SUBSTANCE IN A TEST SAMPLE

摘要

A composition, test device and method of use in determining the presence of a peroxidatively active component in a test sample are disclosed. The composition comprises an organic peroxide, an indicator capable of providing a detectable response in the presence of the peroxide and a peroxidatively active substance, and a complex of Co(III). Inclusion of the Co(III) complex renders the composition resistant to the adverse effects of ascorbate, which might be present in the test sample. The test device comprises a carrier matrix incorporated with the composition. The method comprises contacting the test sample with the device and observing a detectable response therein.