A. Kostelnik, A. Cegan, and M. Pohanka, "Color change of phenol red by integrated smart phone camera as a tool for the determination of neurotoxic compounds," Sensors, vol. 16, no. 9, article 1212, 2016.Kostelnik, A.; Cegan, A.; Pohanka, M. Color change of phenol red by ...
p-Nitrophenol-modified beta-cyclodextrin changes its color from yellow to colorless upon guest binding at pH 6.50. This system was used to detect several o... T Kuwabara - 《Journal of the Japan Society of Colour Material》 被引量: 1发表: 2005年 Use of color change of phenol red as the...
Afterwards, the dried lipid film was rehydrated in HBS (HEPES 40 mM, pH 7.6, NaCl 140 mM) at a concentration of 2 mg/mL, aliquoted and stored at -20∘C until further use. On the day of the experiment, aliquots were thawed and sonicated for 30 min in a bath sonicator ...
Add 3 μL of digestion solution to the dried gel on ice and incubate for 30 min 12. Add 10 μL of 10 mM Tris-HCl (pH 8.8) and incubate overnight at 37 °C 13. Remove the supernatant and place it within a new microtube. Add 10 μL of extraction solution to the remaining bits ...
The main use of litmus is totest whether a solution is acidic or basic. Light-blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral...
Colorant for keratin fibers, especially human hair, contains a color precursor combination of: (a) bis-(5-amino-2-hydroxyphenyl)-methane (I) and/or 4-amino-2-((4-((5'-amino-2'-hydroxy-phenyl)methyl)piperazinyl)methyl)phenol tetrahydrochloride (II); and (b) other color precursor(s) sel...
A system comprising a moisture containing cleansing article and a visual pH indicator changing color at a pH above 4.0. The system can comprise a buffer, having preferably a pKa above 5.5. The system can comprise a set of instructions for evaluating mois
28. A photothermographic element according to claim 1 wherein the imaging layer does not have a pH of more than 7, even in the presence of water. 29. A method of image formation comprising the step of developing an imagewise exposed photothermographic element comprising at least three light...
2. The method of producing an image by dye diffusion processing of an image-wise exposed color photographic material containing associated with at least one sensitive silver halide emulsion layer, a non-diffusible dye color providing compound while in contact with an image receptor layer, ...
A silver halide color photographic material is described, containing a 1H-pyrazolo[5,1-c]-1,2,4-triazole magenta coupler represented by formula (I) or (II): ##STR1## wherein all variables are defined