Patent ID: 7498132

Claim:
A kit for use in determining the concentration of an analyte in a physiological sample, said kit comprising: (a) an electrochemical test strip comprising: (i) a reaction zone defined by opposing working and reference metallic electrodes separated by a spacer layer, wherein at least one of said first and second metallic electrodes has a surface modified with a homogenous surface modification layer made up of identical self assembling molecules having a first sulfhydryl end group and a second sulfonate end group, wherein said sulfhydryl and sulfonate end groups are separated by a lower alkyl linker group and wherein the homogeneous surface modification layer renders the surface of the at least one of said first and second metallic electrodes stably hydrophilic; and (ii) a redox reagent system present in said reaction zone, wherein said redox reagent system comprises at least one enzyme and a mediator; and (b) at least one of: (i) a means for obtaining said physiological sample; and an analyte standard.