Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.
Talanta. 2010 May 15;81(3):1137-41. doi: 10.1016/j.talanta.2010.01.058. Epub 2010 Feb 4.
A modification of a webcam camera for use as a small and low cost detector was demonstrated with a simple lab-on-chip reactor. Real time continuous monitoring of the reaction zone could be done. Acid-base neutralization with phenolphthalein indicator was used as a model reaction. The fading of pink color of the indicator when the acidic solution diffused into the basic solution zone was recorded as the change of red, blue and green colors (%RBG.) The change was related to acid concentration. A low cost portable semi-automation analysis system was achieved.
我们展示了一种将网络摄像头改装为小型低成本检测器的方法，该检测器与简单的芯片实验室反应器配合使用。可以实时连续监测反应区。我们使用酚酞酸碱指示剂的酸碱中和反应作为模型反应。当酸性溶液扩散到碱性溶液区时，指示剂的粉红色褪色，记录为红色、蓝色和绿色颜色的变化（%RBG）。这种变化与酸浓度有关。我们实现了一种低成本的便携式半自动分析系统。
