System and method for broad spectrum drug detection

Details System and method for broad spectrum drug detection System and method for broad spectrum drug detection

G - Physics

01

N

73/93

G01N 33/48 (2006.01) G01N 30/02 (2006.01) G01N 30/88 (2006.01) G01N 33/94 (2006.01)

Patent

CA 1317481

SYSTEM AND METHOD FOR BROAD SPECTRUM DRUG DETECTION ABSTRACT OF THE DISCLOSURE Biological fluid test samples are analyzed for a broad spectrum of drugs, including benzodiazepines, amphetamines, tricyclic antidepressants and opiates, in a single isocratic analysis using a chromatographic column system containing three analytical columns -- an anion exchange column, a reversed phase column and a cation exchange column. A pre-column is also included to purge the sample of salts, proteins, peptides and hydrophilic anions. Carrier liquids containing aceto- nitrile at various strengths are used for distribution of the various drugs among the columns, elution of the drugs from the columns, and column purging and condition- ing. The system readily lends itself to automation, automatic periodic sampling, and component identification and quantification. B16/2558B-292F

604487

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