Topic
Buffer solution
About: Buffer solution is a research topic. Over the lifetime, 6948 publications have been published within this topic receiving 112440 citations. The topic is also known as: pH buffer & buffer.
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TL;DR: Capillary electrophoresis conditions in the free solution mode were established for the separation and detection of 2,4-dichlorophenoxyacetic acid and three optically active phenoxy acid herbicides as discussed by the authors.
78 citations
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TL;DR: In this article, high-crystallized cubic cattierite CoS 2 pyramids were applied as electrocatalysts for hydorgen evolution reaction (HER) and showed very different acidic HER performance.
78 citations
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TL;DR: In this paper, the authors used an organic sequestering agent to form unionized complexes with calcium and magnesium ions and added a buffer prior to the titration to adjust the pH value of the sample to about 10.0.
Abstract: the sample by using a stronger titrating solution. With a larger sample and a microburet, hardness in the range of 0.0-2.0 ppm. can be determined within 0.1 ppm. The method is based on the titration of a water sample with an organic sequestering agent which will form unionized complexes with calcium and magnesium. The titration is performed in the presence of an indicator which is red when there are calcium and magnesium ions and blue in their absence. A buffer solution is added prior to the titration to adjust the pH value of the sample to about 10.0.
78 citations
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TL;DR: The ferric reducing anti-oxidant power (FRAP) as mentioned in this paper was performed using methanolic extract, different fractions (n -hexane, chloroform) and standard ascorbic acid.
Abstract: The ferric reducing anti-oxidant power (FRAP) assay involved the following steps: a) preparation of samples, b) reactions and c) finally measuring absorbance of sample and standard at 700 nm using spectrophotometer. The samples were methanolic extract, different fractions ( n -hexane, chloroform) and standard ascorbic acid. The solutions prepared were buffer solution (pH 6.6), 1% potassium ferricyanide solution, 10% trichloroacetic acid and 0.1% ferric chloride. Video Clip of Methodology: Ferric reducing anti-oxidant power assay: 21 min 18 sec Full Screen Alternate
78 citations
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TL;DR: In this article, an internal buffer system comprising disodium hydrogen orthophosphate and citric acid was incorporated at the 10% w/w level into a polyvinylpyrrolidone (PVP) solid dispersion system which was X-ray amorphous, or non-crystalline, in nature.
78 citations