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SERAG (Smart Enzymatic Reader for Agriculture Grains): A Multiplex Enzymatic Detection Kit for Rapid, On-Site Diagnosis of Mixed Stored-Grain Insect Infestations. [PDF]

ACS Omega
Hashem AS, Al-Nazawi AM.
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Colorimetric Assay of Levodopa

Journal of Pharmaceutical Sciences, 1972
Abstract A new colorimetric assay method for levodopa, based on the reaction with isonicotinic acid hydrazide in alkaline medium, is reported. Data on precision, accuracy, and specificity are also given. The method, owing to its simplicity, is particularly suited for the routine purity control of levodopa.
N, Maggi, A, Cometti
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Colorimetric protein assay techniques

Biotechnology and Applied Biochemistry, 1999
There has been an increase in the number of colorimetric assay techniques for the determination of protein concentration over the past 20 years. This has resulted in a perceived increase in sensitivity and accuracy with the advent of new techniques. The present review considers these advances with emphasis on the potential use of such technologies in ...
C V, Sapan, R L, Lundblad, N C, Price
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Colorimetric Assay of Nystatin

Journal of Pharmaceutical Sciences, 1963
A colorimetric method to assay nystatin both as powder and in pharmaceutical preparations is described. Nystatin is hydrolyzed with sodium hydroxide; the yellow color produced is extracted from a buffered solution into chloroform and measured colorimetrically. Comparison with microbiological assay is shown in a degradation experiment.
J C, CHANG, A B, HONIG, A T, WARREN, S, LEVINE   +3 more
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Colorimetric assay of digitoxin

Journal of the American Pharmaceutical Association (Scientific ed.), 1948
A colorimetric method in which sodium beta-naphthoquinone-4-sulfonate (purified) is reacted with digitoxin in alkaline solution to form a purple color is proposed for the determination of digitoxin. The purple color quickly reaches a maximum and fades, but the addition of acetic acid at the time of maximum development changes the color to yellow and ...
A T, WARREN, F O, HOWLAND, L W, GREEN
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Colorimetric Assay of Epinephrine

Journal of Pharmaceutical Sciences, 1974
A new colorimetric assay method for epinephrine, based on the reaction with thiosemicarbazide in alkaline medium, is presented. Beer's law is followed in the range of 25–300 μg. Data on precision, accuracy, and specificity are included. A special calculation is adopted in the presence of norepinephrine.
R B, Salama, S K, Khalil
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Colorimetric Assay of Disulfiram

Journal of Pharmaceutical Sciences, 1973
A quantitative assay for disulfiram was developed based on color formation during the interaction of disulfiram, ethanol, and cyanide. A linear curve is obtained over a wide range of disulfiram concentrations. Metabolites of disulfiram do not interfere in this assay.
R, Fried, A N, Masoud, F M, Klein
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Colorimetric assay for cellular transglutaminase

Analytical Biochemistry, 1989
A colorimetric assay for cellular transglutaminase using 5-(biotinamido)pentylamine and polyvinylidine difluoride membranes for crude cellular preparations and purified enzyme has been developed. The biotinpentylamine substrate was incorporated into N,N-dimethylcasein by transglutaminase, the biotinylated products were adsorbed onto the membrane disks ...
W M, Jeon, K N, Lee, P J, Birckbichler, E, Conway, M K, Patterson   +4 more
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