Infrared thermal imaging combined with paper microzone plates and natural reagent extracts for simple, fast, and green enthalpimetric analysis.

摘要: Abstract Paper microzone plates and thermal infrared enthalpimetry (TIE) were combined with potato juice as natural reagent extract to perform the determination of hydrogen peroxide in pharmaceutical, bleaching, toiletry products. A multichannel pipette was used for addition simultaneously multiple zones paper devices, temperature rise determined using an camera. In order provide suitable measurements, some parameters optimized such pH, volume reagents, stability extract. Results compared those obtained methods from official compendia (United States Pharmacopeia ASTM D2180 –17), agreements ranging 96 103%. The green analytical procedure index compare greenness proposed method ones, clear advantages TIE. Only microliters samples extracts required analysis, it found that waste generation could be greatly reduced. After device directly disposed since final products reaction O2 water. According these features, considered a promising alternative routine analysis agreement chemistry principles.