Department of Nanobiotechnology, Biology Centre, ISBB, CAS, Na Sadkach 7, 370 05, Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Slechtitelu 27, 783 71, Olomouc, Czech Republic.
Department of Nanobiotechnology, Biology Centre, ISBB, CAS, Na Sadkach 7, 370 05, Ceske Budejovice, Czech Republic.
Talanta. 2023 Sep 1;262:124686. doi: 10.1016/j.talanta.2023.124686. Epub 2023 May 20.
Solid phase extraction, based on the use of color catcher sheets, was successfully employed for the preconcentration of food dyes from alcohol containing beverages. The photos of color catcher sheets with the adsorbed dyes were taken with a mobile phone. The smartphone-based image analysis of the photos was performed using Color Picker application. The values of several color spaces were collected. Specific values from RGB, CMY, RYB and LAB color spaces were proportional to the dye concentration in the analyzed samples. The described inexpensive, simple and elution free assay enables analysis of dyes concentration in various solutions.
固相萃取，基于使用彩色捕集片，成功地应用于从含酒精饮料中预浓缩食品染料。用手机拍摄彩色捕集片上吸附染料的照片。使用 Color Picker 应用程序对照片进行基于智能手机的图像分析。收集了几个颜色空间的值。来自 RGB、CMY、RYB 和 LAB 颜色空间的特定值与分析样品中染料浓度成正比。所描述的廉价、简单且无需洗脱的测定方法能够分析各种溶液中的染料浓度。
