Laboratory Flasks Applications available in Mississippi
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Flame Photometer for Measurement of Calcium in DNA and DNP
The calcium content of aqueous solutions of deoxyribonucleic acid (DNA) and deoxyribonucleoprotein (DNP) cannot assayed directly because of interference effects. An acid extraction procedure enabled direct measurements of calcium in DNA and DNP, or a standard addition technique was used at higher ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Potassium in Unashed Plant Leaves
This method uses a suspension of ground plant material to directly measure the potassium concentration. It eliminates the usual steps of ashing and subsequent dissolution of the resulting ash. The method was compared to alternative methods such as chemical analysis and spectrophotometric methods. Collaborative studies using a range of samples gave a mean of 1.74% potassium by this extraction technique as compared to 1.75% by alternative methods. The standard deviation of an analysis in the two different sample ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Determination of Na and K using Emulsions and Microemulsions for Sample Preparation
This technique allows use of aqueous standards for calibration rather than relatively unstable organometallic standards and harmful solvents for the extraction. Microemulsions are thermodynamically stable systems composed of water, oil and surfactant. In some cases, an alcohol is added as a ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Na, K and Ca in Plant Extracts
The most important ions which naturally occur in plant tissues are sodium, potassium, calcium, magnesium, nitrate, sulphate and phosphate. A sample of 5 g of oven-dried plant material contains on average, 25 mg calcium, 9 mg magnesium, 80 mg potassium and 3 mg sodium. The recommended method for the measurement of calcium is to precipitate the calcium as an oxalate, the precipitate is then dissolved and measurement taken from the resulting solution. Sodium and potassium may be measured directly following an ashing ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Determination of Na in Biodiesel using Dry Decomposition for Sample Preparation
The sample of biodiesel is weighed into a crucible and placed in a heating muffle furnace. Two temperatures are used in the heating program for the dry decomposition: the first temperature (250ºC) is maintained for 1 hour to dry the sample. After this the temperature is progressively elevated to 600ºC and maintained for 4 hours to eliminate the remaining organic material. ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Calcium in Serum & Urine
This method reduces or removes potential interference from sodium, potassium and phosphates normally present in serum and urine by diluting the samples with a diluent containing ethylenediaminetetraacetic acid ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement Of Lithium In Saliva Sector
The use of lithium carbonate for the treatment of bipolar disorders and depression is well established. However, for the treatment to be effective, it must be managed closely, to ensure the dose is maintained within the normal therapeutic range. ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Sodium and Potassium in Cheese
Cheese was wet ashed with a combination of acid and a high temperature oven to form a dissolvable product ready for analysis via flame ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Determination of Sodium in Biodiesel by Flame Atomic
This method allows the analyte to be pre-concentrated in the final solution, decreases the volume of strong acid used in the dissolution stage and does not use organic ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Trace Elements in Biodiesel
These methods are adapted from methods for the determination of sodium and potassium in fatty-acid methyl ester samples. The sample is diluted with an organic solvent (xylene, cyclohexane or petroleum ether) plus a stabiliser. The calibration standards which have a similar matrix to the prepared sample solutions, are prepared from sodium and potassium organometallic salts which are dissolved in a solution of xylene with a stabiliser. These European Standards specify a method for the determination of potassium of ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Potassium and Sodium in Bread
Bread contributes about one-sixth of daily salt intake and is used to improve flavour and texture. The amount of sodium in bread can differ significantly, depending upon brand and type of grain used, ranging from 592mg/100g to 748mg/100g. The level of sodium in bread is primarily due to the amount of salt added to the dough during manufacture. The amount of potassium is determined by the type of flour and the washing and bleaching operations during cereal processing. Bread does not make a significant contribution ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Sodium and Potassium in Silicate Rocks
This method for the measurement of sodium and potassium in silicate rocks uses a borate fusion ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Potassium Extraction from Soil
Principle: Potassium was extracted from a soil sample with acidified ammonium lactate to determine plant available potassium ionic concentration present in the ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Lithium in Minerals
This method has been adapted to enable measurement of lithium over a wide range of concentrations (0.10 to >8.0%), in lithium containing ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Calcium in Unashed Plant Leaves
This procedure uses a TCA (trichloroacetic acid) extraction of the tissue to release all of the ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Sodium and Potassium in Dried Milk
Dried milk was dissolved into an aqueous solution for analysis via flame photometry. The test solutions and reference solutions are measured directly following dilution with deionised distilled ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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Flame Photometer for Measurement of Lithium Sea Water
The effect of potential interference from other constituents of sea water was studied, including sodium, chloride and potassium. It was found that pre-concentration of the sea water was not necessary prior to analysis. A filtration of the sample was only necessary if sample contained suspended material. ...
By BWB Technologies Ltd. based in Newbury, UNITED KINGDOM.
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UV/VIS Spectrophotometry for Food & Beverages
The food & beverage industry must make many tests and take certain measurements to ensure that their products meet high standards and are safe for consumption. The Photopette can be used for photometric measurements of liquid ...
By Tip Biosystems Pte Ltd based in Singapore City, SINGAPORE.
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Label Tubes for Master Cell Bank Vial Labeling industry
Master cell banks are critical to therapeutic development to avoid genetic variation and potential contamination by eliminating the total number of times a cell line is passaged or handled during the manufacturing process. Master cell bank vial labeling requires dependable, readable cryovial labels for researchers who want to access specific master and working cell lines. ...
By TubeWriter360 based in Fremont, CALIFORNIA (USA).
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UV/VIS Spectrophotometry for Life Science
UV/VIS spectrophotometry is a common method used for research in most life science laboratories around the ...
By Tip Biosystems Pte Ltd based in Singapore City, SINGAPORE.
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