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Electrochemical testing system and method

  • US 4,233,031 A
  • Filed: 12/11/1978
  • Issued: 11/11/1980
  • Est. Priority Date: 12/11/1978
  • Status: Expired
First Claim
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1. In serum iron testing, a method of electrochemical testing compatible with micro sized samples of serum comprising:

  • preparing a substantially iron-free matrix including a lower aliphatic alcohol and between about 51/2 Formal and about 81/2 Formal HCl;

    introducing a predetermined quantity of serum into said matrix to provide an electrolytic sample, and adding a measured quantity of said sample containing a measured quantity of serum to an electrolytic cell;

    applying to a first electrode in said cell a potential to measure the quantity of copper and iron in said cell;

    applying to a second electrode in said cell a potential to measure a different quantity selected from copper and iron;

    obtaining signals corresponding to current flow at each of said electrodes; and

    comparing said signals to measure the quantity of iron.

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