×

Ion selective electrodes for direct organic drug analysis in saliva, sweat, and surface wipes

  • US 20030121779A1
  • Filed: 09/09/2002
  • Published: 07/03/2003
  • Est. Priority Date: 10/12/2001
  • Status: Active Grant
First Claim
Patent Images

1. A device to detect an organic drug in saliva or from a surface swab comprising:

  • (a) at least one ion selective electrode to detect an organic drug in saliva or a surface wipe being comprised of (i) a reference electrode; and

    (ii) a sensing electrode with a semi-permeable ion selective membrane comprising a hydrophobic polymer, a plasticizer, and an ionophore selective for the organic drug to be tested; and

    wherein there is electrical contact between the reference electrode and the sensing electrode; and

    (b) a converter connected to the ion selective electrode to convert a voltage reading from the ion selective electrode to a quantitative drug concentration level.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×