A new, rapid colorimetric assay for quantitative determination of cellular proliferation, growth inhibition, and viability

1993 ◽  
Vol 15 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Peter Rieck ◽  
Dirk Peters ◽  
Christian Hartmann ◽  
Yves Courtois
Keyword(s):  
Quantitative Determination ◽  
Growth Inhibition ◽  
Cellular Proliferation ◽  
Colorimetric Assay

Simple Colorimetric Estimation of Cyclopiazonic Acid in Contaminated Food and Feeds

1984 ◽  
Vol 67 (1) ◽  
pp. 38-40
Author(s):  
A Rathinavelu ◽  
Edayathimangalam Rajabhavani B Shanmugasundaram
Keyword(s):  
Thin Layer ◽  
Quantitative Determination ◽  
Thin Layer Chromatography ◽  
Minimal Medium ◽  
Colorimetric Assay ◽  
Cyclopiazonic Acid ◽  
Assay Procedure ◽  
Contaminated Food ◽  
Layer Chromatography

Abstract A method has been developed for quantitative determination of cyclopiazonic acid, a mycotoxin produced by a common food contaminant, Penicillium cyclopium. The organism was grown successively in synthetic minimal medium, rice, corn, and wheat for 15 days. The toxin was extracted with chloroform followed by separation by thin layer chromatography. A colorimetric assay procedure has been successfully developed for the analysis of cyclopiazonic acid present in infected rice, corn, and wheat. The sensitivity of the method was tested by using recovery experiments.

scholarly journals A new method for the quantitative determination of monosaccharides, amino sugars and N-acetylneuraminic acid and of 6-deoxyhexose (fucose) in the presence of other sugars

1968 ◽  
Vol 110 (3) ◽  
pp. 413-417 ◽  
Author(s):  
Gwyneth M. Brearley ◽  
Jacqueline B. Weiss
Keyword(s):  
Quantitative Determination ◽  
Colorimetric Assay ◽  
Periodate Oxidation ◽  
New Method ◽  
Amino Sugars ◽  
Simple Method ◽  
Acetylneuraminic Acid ◽  
Assay Procedure ◽  
Optimum Ph

1. Monosaccharides, amino sugars and N-acetylneuraminic acid were determined by using an original colorimetric assay procedure, based on the detection of formaldehyde released after periodate oxidation. A range of these compounds was investigated by this method and they were all found to obey Beer's law within the concentration range 0–0·6μmole/ml. 2. A simple method for the determination of 6-deoxyhexose concentration in the presence of other monosaccharides is also described. 3. The optimum pH for the release of formaldehyde from sugars by periodate oxidation was 7·0–7·5. 4. The methods described have considerable advantages over existing assay systems and their particlar value in automatic colorimetry, where the use of concentrated acids is undesirable, is discussed.

Rapid colorimetric assay for acetaminophen without salicylate or phenylephrine interference.

1982 ◽  
Vol 28 (5) ◽  
pp. 1171-1173 ◽  
Author(s):  
M B Swanson ◽  
M I Walters
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
Quantitative Determination ◽  
High Pressure Liquid Chromatography ◽  
Sulfonic Acid ◽  
Colorimetric Assay ◽  
Colored Complex

Abstract A simple rapid, and economical procedure is presented for the quantitative determination of acetaminophen in serum. Acetaminophen is extracted into solvent, and, when back-extracted into base, is simultaneously reacted with Folin-Ciocalteau reagent to form a colored complex. The potential interference of bilirubin is eliminated by treatment with p-diazobenzene sulfonic acid. Results obtained with this method agree with those obtained by "high-pressure" liquid chromatography.

Quantitative Determination of Tremortins in Agricultural Commodities

1971 ◽  
Vol 54 (5) ◽  
pp. 1035-1036
Author(s):  
C T Hou ◽  
A Ciegler ◽  
C W Hesseltine
Keyword(s):  
Thin Layer ◽  
Quantitative Determination ◽  
Thin Layer Chromatography ◽  
Colorimetric Assay ◽  
Agricultural Commodities ◽  
Agricultural Commodity ◽  
Layer Chromatography ◽  
Chloroform Methanol

Abstract The procedure described for the quantitative determination of tremortins in agricultural commodities involves extracting the agricultural commodity with chloroform-methanol (2 + 1), followed by thin layer chromatography and colorimetric assay. This procedure was successfully applied to the analysis of tremortin A added to grains and the production of tremortins A and B on various commodities.

A Novel and Efficient Colorimetric Assay for Quantitative Determination of Amlodipine in Environmental, Biological and Pharmaceutical Samples

2019 ◽  
Vol 4 (34) ◽  
pp. 10046-10053 ◽  
Author(s):  
Sana Yaqoob ◽  
Sana Rahim ◽  
Adnan Murad Bhayo ◽  
Muhammad Raza Shah ◽  
Abdul Hameed ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Colorimetric Assay ◽  
Pharmaceutical Samples

Quantitative determination of longitudinal and transverse cross-relaxation rates

1999 ◽  
Vol 96 (9/10) ◽  
pp. 1608-1615
Author(s):  
T. E. Malliavin ◽  
H. Desvaux ◽  
M. A. Delsuc
Keyword(s):  
Quantitative Determination ◽  
Cross Relaxation ◽  
Relaxation Rates

Quantitative Determination of Gallic acid and Cyanidin-3-O-Glucoside within Sumac Extracts by HPLC-MS/MS

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
M Koşar ◽  
F Göger ◽  
N Kırımer ◽  
KHC Başer
Keyword(s):  
Quantitative Determination ◽  
Gallic Acid
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