Colorimetry Method Articles & Analysis
19 articles found
Collagen is an important structural protein that is widely found in various biological tissues, such as skin, bones, tendons, and blood vessels. Accurate determination of collagen content is very important for biomedical research, disease diagnosis and quality control of related products. Here are some commonly used methods for determining collagen content.ChromatographyHigh-performance liquid ...
The different thiol content can affect the different structures and functions of proteins, thereby affecting the biological life activities and physiological functions, so it is necessary to detect its content.The detection of the content of free thiols is mainly based on the reducibility of thiols and their specific reactions with other chemical reagents. The commonly used detection ...
Protein Qualitative Analysis refers to the determination of the types, structure, and function of proteins. Protein Quantitative Analysis refers to the determination of the protein content in the sample.Commonly Used Methods of Protein Qualitative Analysis1. ElectrophoresisProteins are separated and identified by their differential migration rates in an electric field. This includes sodium ...
Sialic acid is a general term for a type of 9 carbon sugar found in animal tissues and the glycoproteins and glycolipids on cell surfaces. In biology and clinical medicine, the detection of sialic acid levels is very important for diagnosing certain diseases (such as cancer), monitoring the stability of biomolecules, and drug development. Here are some commonly used methods for detecting sialic ...
In this comprehensive guide, we explore the concept of ORP (Oxidation-Reduction Potential) and how to measure it. Learn the importance of ORP in various industries, its impact on water quality, and the methods used to determine ORP levels. Dive into the world of ORP and understand its significance in today's environment. Introduction What is ORP, and why is it important? If you've ever wondered ...
Polysaccharides are made by polymerizing more than 10 monosaccharide molecules through glycosidic bonds. The molecular weight of polysaccharides is relatively large, usually consisting of hundreds or even tens of thousands of monosaccharide molecules. Polysaccharides, together with nucleic acids, proteins, and lipids, are called the four basic substances of life and play important roles in many ...
Background Water is the source of life, human life and production activities can not do without water. The quality of drinking water is closely related to human health. Water quality monitoring and control has become an important subject of modern science. The on-line water quality monitoring system can accurately, timely and comprehensively reflect the current water quality and development ...
In the United States, before wastewater can be discharged into a lake or river, it is mandatory to meet the National Pollutant Discharge Elimination System (NPDES) effluent guidelines. These parameters – pH (potential hydrogen), TSS (total suspended solids) and BOD (biological oxygen demand) – can be lowered by controlling algal growth. This blog is the first is a three-part series to ...
In aerobic environments, ammonia from agricultural pollution, sewage, decaying protein and other nitrogen pollution sources becomes successively oxidised (nitrified) to nitrite (NO2–) and then to nitrate (NO3–). Nitrate, is of course, a recognised environmental issue due to its role in eutrophication and groundwater contamination. But what about the environmental impact of ...
Electro-Chemical Devices introduces CA-6 Colorimetric copper analyzer Process and plant engineers treating municipal drinking water or industrial wastewater who need to monitor, remediate or remove harsh Iron (Fe) can use the precision CA-6 Colorimetric Copper Analyzer from Electro-Chemical Devices (ECD) with the goal to achieve desired water quality levels and protect water resources. With ...
Nitrogen is naturally found in groundwater and surface water in the form of nitrate, nitrite, or ammonium. The EPA has established a maximum contaminant level of nitrate-nitrogen in potable water of 10ppm. This application presents results of UV-Vis analysis of nitrate concentrations in drinking water, ground water, and industrial wastewater, showing that the manual colorimetric method is ...
The purification and safe disposal (neutralization) of industrial waste water effluents represent a very important ecological problem. The principal problem or requirement involves reducing the concentration of harmful impurities to concentration levels below their maximum allowable concentration limits. In fulfilling this requirement the amount of fresh water consumption needed to maintain the ...
Phosphate detection in water samples is still completed using colorimetric standard methods, which have a number of disadvantages, to such as being time consuming, requiring filtration, a number of different reagents, frequent calibration and proper disposal of waste chemicals generated. Hence, a simple cost effective analytical method and instrumentation is highly desirable to aid the ...
Bromide is commonly used as a tracer in studies of water and chemical transport in soil and rock because it is relatively nonreactive with soil and rock constituents and because of its low environmental background concentrations. Based on a largely ignored modification of an American Public Health Association standard colorimetric method for determining Br– using phenol red and chloramine-T(CT), ...
Several methods exist for determining nitrate in aqueous solutions. However, the most commonly performed USEPA-approved methods are problematic and can be unreliable. USEPA methods 353.1 nitrate Hydrazine Reduction1,2 and 353.2 nitrate Cadmium Reduction3 utilize chemicals that are carcinogenic and highly toxic. Hazardous waste is generated when performing these methods and disposal is costly. ...
Recycled water (RW) containing compost leachate can be a potent source of foul odor on mushroom composting sites. Samples of RW were repeatedly collected from storage tanks and pits of 14 mushroom composting sites in England and Ireland. Relationships between the effects of submerged aeration of the RW, the chemical and microbial characteristics of the RW, and the odors emitted were investigated. ...
Processing waste discharges, manufacturing effluents and sewage would not normally have been a problem 50 years ago, but the advent of almost unchecked industrial growth the latter half of the last century has created the POTENTIAL for a wide variety of characterized pollutants to enter the environment of any municipality. The toxic METALS are tested by approved State & Federal methods ...
This review compares methods that are currently employed for shipboard analysis of trace metals in seawater voltammetric, chemiluminescence and colorimetric methods. Instrumentation and methods are described for collecting surface seawater using pumping, with subsequent on-line analysis by stripping voltammetry. The review is illustrated with ...
![The mtt [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay is a fast and reliable method for colorimetric determination of fungal cell densities](https://d32zuqhgcrpxli.cloudfront.net/eyJidWNrZXQiOiJlZS1maWxlcyIsImtleSI6ImZpbGVzLzc0MDUvaW1hZ2VzLzc0MDVfMF8yMDIwMDcyMTE5MzgwNjE4ODA5ODgucG5nIiwiZWRpdHMiOnsicmVzaXplIjp7ImZpdCI6ImNvbnRhaW4iLCJiYWNrZ3JvdW5kIjp7InIiOjI1NSwiZyI6MjU1LCJiIjoyNTUsImFscGhhIjoxfSwid2lkdGgiOjI0MCwiaGVpZ2h0IjoxNDV9fX0= "The mtt [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay is a fast and reliable method for colorimetric determination of fungal cell densities")
The entomopathogenic fungus Neozygites parvispora (Entomophthorales: Zygomycetes) grows in vitro as irregularly rod-shaped hyphal bodies in a complex medium. In order to simplify the medium composition and determine growth-promoting compounds for the cultivation of this fungus, we were looking for a rapid and quantitative method to estimate the number of living cells in small volumes of liquid ...