简体中文July 26, 2026by Testsubstances2,408 reads

可卡因检测:常见掺假物及如何识别它们

可卡因很少是纯的。从致命的芬太尼到导致皮肤坏死的左旋咪唑,本文教你如何检测可卡因掺假物。

可卡因掺假

街头可卡因很少是纯的——大多数样品含有20-50%的可卡因HCl,其余为掺假物和稀释剂。以下是常见掺假物以及如何检测它们。

常见掺假物

  • 左旋咪唑:一种兽用驱虫剂,导致严重的皮肤坏死(血管炎)。在80%以上的可卡因样品中发现
  • 苯乙丁氮酮(Phenacetin):一种禁用的止痛药,可导致肾衰竭
  • 咖啡因:廉价填充物,增加刺激感但增加心脏压力
  • 利多卡因/苯佐卡因:局部麻醉剂,模仿可卡因的麻木效果
  • 芬太尼:正在增加——与可卡因混合可能是致命的

检测方案

  1. Scott试剂:确认可卡因(蓝色=存在可卡因)
  2. Marquis试剂:排除安非他明类掺假物
  3. 芬太尼试纸:关键——测试每一批可卡因

检测步骤

  1. 将约10mg可卡因放在白色陶瓷表面上
  2. 滴一滴Scott试剂:立即变蓝=可卡因可能阳性
  3. 如果蓝色褪去很快,可能含有苯佐卡因或利多卡因
  4. 使用Marquis确认为紫色/黑色反应不存在(如果存在=安非他明污染)
  5. 将剩余样品溶解在水中进行芬太尼测试

如果你检测到芬太尼:不要使用该可卡因。 芬太尼在可卡因中无法通过外观或味道检测。

可卡因掺假物检测指南芬太尼左旋咪唑减害

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