Barreira Rodríguez J R, Cabal Díaz V, Costa García A, Tuñón Blanco P
Department of Physical and Analytical Chemistry, University of Oviedo, Asturias, Spain.
Analyst. 1990 Feb;115(2):209-12. doi: 10.1039/an9901500209.
The oxidation of heroin on a carbon paste electrode has been studied by using voltammetric techniques under both semi-infinite linear diffusion and hydrodynamic conditions. By employing a simple and rapid in situ pre-treatment of the electrode, excellent reproducibility of the current signal was obtained. Subsequently, the current was measured and the concentration of total heroin present could be determined. The method compared favourably with instrumental methods that are more commonly used for the quantification of heroin in clinical laboratories such as chromatographic, spectrophotometric or radiometric techniques. Moreover, the proposed method showed good selectivity and was superior with respect to cost and time of analysis, permitting the determination of heroin in seized drug samples over a wide concentration range.
采用伏安法技术，在半无限线性扩散和流体动力学条件下，研究了海洛因在碳糊电极上的氧化过程。通过对电极进行简单快速的原位预处理，获得了电流信号的优异重现性。随后，测量电流并确定存在的总海洛因浓度。该方法与临床实验室中更常用于海洛因定量分析的仪器方法（如色谱法、分光光度法或放射测量技术）相比具有优势。此外，所提出的方法具有良好的选择性，在分析成本和时间方面更具优势，能够在很宽的浓度范围内测定缴获毒品样品中的海洛因。
