[Abuse of "pheticol" and its interference to the analysis of methamphetamine]. Academic Article uri icon


  • The study was to eliminate interference from ephedrine in the analysis of methamphetamine. The extraction procedure for methamphetamine was modified to include an oxidation step (2 ml urine specimen was treated with 0.5 ml of 1 mol/L phosphate buffer (pH 6.8) and 0.5 ml 0.3 mol/L sodium periodate). Results showed that ephedrine could be oxidized in the presence of periodate ions into smaller fragments while leaving methamphetamine intact. It is recommended that specimens be treated with sodium periodate prior to extraction in order to eliminate any interference caused by ephedrine.

published proceedings

  • Fa Yi Xue Za Zhi

author list (cited authors)

  • Shen, M., Xiang, P., Huang, Z., Liu, W., Shen, B., & Bu, J.

citation count

  • 0

complete list of authors

  • Shen, M||Xiang, P||Huang, Z||Liu, W||Shen, B||Bu, J

publication date

  • January 1998