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What is the standard reference method for protein determination?
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∙ 13y ago
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∙ 13y ago
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Why is electrometric method of pH determination more accurate than colorometric method?
The electrometric method of pH determination provides a single value dependent on the concentration of hydrogen ions in the aqueous solution being tested. The colorimetric method of pH determination uses acid-base indicators to provide a range of values for a solution's pH, and is therefore less accurate than the electrometric method.
Is lowry's protein estimation an invasive method?
No. It is a non-invasive method
Difference between reference standard and working standard in analytical lab?
A reference standard is the traceable, raw material standard (usually in crystallized form) that you dissolve and volumetrically dilute to make your working standard. The working standard is what you use to "do your work." Let's say you are performing an HPLC purity and degradation assay on aspirin tablets for your client. The client corporation would supply the reference standard(s) (or in this case could be purchased from the US Pharmacopeia) with a lot number, purity coefficient and expiration date (among other things like storage requirements). This information makes it traceable and is recorded in the preparation notebook. Then per the assay method the working standard is dissolved in a volumetric flask and diluted to volume (with subsequent dilutions if necessary) to make the working standard. The working standard is then used to make calibration curve injections on the HPLC to estimate the quantities of your aspirin tablets being analyzed. Note: In the above example, reference standards are also used to make a system suitability solution. This would contain the A) reference standard material used for the calibration curve and B) another reference standard of at least one possible degradant to show peak separation.
What is an Ionic column?
it is a method used to purify protein
How can we determination of PO4 and SO4 Ions in solution of phosphoric acid?
In basic medium using photometric method......
Would it be reliable to use the simple calibration curve method for the determination of potassium by flame photometry in seawater?
For a calibration curve method it is required that the composition (matrix) of standard and sample is nearly identical.when it is impossible to match the composition of the sample with the standard.we use standard addition method.
What is Nelson method?
its a method for determination of reducing sugars
What argument passes in a method that will reference the content and can change the variable in the method?
That is called passing an argument by reference.
What is the normal result of a lipase test?
Reference values for lipase determination are laboratory- and method-specific. In general, normal results are usually less than 200 units/L (triolein methods by titration or turbidimetry).
Why is electrometric method of pH determination more accurate than colorometric method?
The electrometric method of pH determination provides a single value dependent on the concentration of hydrogen ions in the aqueous solution being tested. The colorimetric method of pH determination uses acid-base indicators to provide a range of values for a solution's pH, and is therefore less accurate than the electrometric method.
What is EN ISO?
ISO:12956:2010 is an ISO standard that specifies a method for the determination of the characteristic size of the openings of a single layer of a geotextile or geotextile-related product using the wet-sieving principle.
Which method is best for determining Protein Quality?
Lowry method
Is lowry's protein estimation an invasive method?
No. It is a non-invasive method
How do you test for hemoglobin?
there are many methods to check the Hb such as Sahli's method cyanmet method specific gravity method etc.
Identify the research method that is the accepted standard?
scientific method is the accepted standard of research methodology.
What is EN ISO 12956?
ISO:12956:2010 is an ISO standard that specifies a method for the determination of the characteristic size of the openings of a single layer of a geotextile or geotextile-related product using the wet-sieving principle.
What is standard method?
The method that everyone has agreed to use.
