Patent ID: 11867704
Assignee: UNIVERSITEIT ANTWERPEN
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 3:
4. The method according to claim 1, wherein:
step a comprises a1) determining a first voltage at which, in the absence of the at least one interferent, a voltammetric signal of the narcotic at a first pH can be detected, and a2) determining a second voltage at which, in the absence of the at least one interferent, a voltammetric signal of the narcotic at a second pH can be detected, the second pH differing from the first pH by at least 1;
step d comprises d1) measuring a first voltammetric response of the mixture at the first pH, the first voltammetric response comprising at least the first voltage, and d2) measuring a second voltammetric response of the mixture at the second pH, the second voltammetric response comprising at least the second voltage; and
step e comprises determining whether the narcotic is present in the mixture by analyzing whether the voltammetric signal of the narcotic, resolved from the voltammetric signal of the at least one interferent, can be detected in at least one of the first and second voltammetric responses.