Department of Applied Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
Department of Applied Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
Forensic Sci Int. 2014 Feb;235:8-13. doi: 10.1016/j.forsciint.2013.11.018. Epub 2013 Dec 16.
The Simon presumptive color test was used in combination with the built-in digital camera on a mobile phone to detect methamphetamine. The real-time Red-Green-Blue (RGB) basic color data was obtained using an application installed on the mobile phone and the relationship profile between RGB intensity, including other calculated values, and the colourimetric product was investigated. A wide linear range (0.1-2.5mg mL(-1)) and a low detection limit (0.0110±0.0001-0.044±0.002mg mL(-1)) were achieved. The method also required a small sample size (20μL). The results obtained from the analysis of illicit methamphetamine tablets were comparable to values obtained from gas chromatograph-flame ionization detector (GC-FID) analysis. Method validation indicated good intra- and inter-day precision (2.27-4.49%RSD and 2.65-5.62%RSD, respectively). The results suggest that this is a powerful real-time mobile method with the potential to be applied in field tests.
西蒙推测颜色测试与手机内置数码相机结合使用，用于检测甲基苯丙胺。通过在手机上安装应用程序获得实时的红绿蓝（RGB）基本颜色数据，并研究了 RGB 强度之间的关系图，包括其他计算值和比色产物。该方法实现了较宽的线性范围（0.1-2.5mg mL(-1)) 和较低的检测限（0.0110±0.0001-0.044±0.002mg mL(-1))。该方法还需要较小的样本量（20μL）。从非法甲基苯丙胺片剂分析中获得的结果与气相色谱-火焰离子化检测器（GC-FID）分析获得的值相当。方法验证表明日内和日间精密度良好（分别为 2.27-4.49%RSD 和 2.65-5.62%RSD）。结果表明，这是一种强大的实时移动方法，具有在现场测试中应用的潜力。
