| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 05.00 |
| PATENT ASSIGNEE | Varian |
| PATENT CLAIMS |
- Contacting aq body fluid sample suspected of contg cocai ne or benzoylecgonine with styrene-divinyl benzene resin adsorbent - Washing adsorbent with aq buffer with pH 4.5-6.5 - Applying second solvent system consisting of acetone/ chloroform (1:1) by vol to adsorbent, to elute the cocaine or from adsorbent, thereby producing an eluate contg > 80% of analyte present in sample, said eluate being suitable for gas chromatographic analysis - Detecting or quantitating analyte contained in eluate |
| PATENT PHOTOCOPY | Available on request |
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