If i used Glassware, Spectrophotometer, Balance, Distilled water and Thermal digester what can I do in simple equation if i have the uncertainty of glassware, Spectrophotometer, Balance and the digester.
If I have Class B glassware what can i do?
How can I use the Collected data from spectrometer certificate? and can i neglect the Spectrometer uncertainty?
How can the chemical purity affect the uncertainty value in the standard preparation?
What can I do if I have chemical purity 100.59 % ?
Does the reagent needed to measure the standard include into standard uncertainty calculations?
, I want your opinion about that
regards
All your questions are legitimate and refer to measurement theory ( S. Rabinovich, Guide to the expression of uncertainty in measurement,
3d ed. Springer International Publishing, USA, 2017.
https://goo.gl/5bofbE).
At the same time, I think you should get acquainted with the new information approach, which reveals the smallest absolute measurement uncertainty of the main variable that characterizes the researched process ( https://goo.gl/m3ukQi ).
Of course, my answer is not comprehensive, but it will help you evaluate the required number of variables in order to achieve the smallest measurement uncertainty.
I think it is the summation of ( uncertainty from the calibration curve + the standard uncertainty of all effective parameter such as mass, volume, etc) multiplying of 2 to reach the expanded uncertainty with coverage factor 95% .
but i don't know what can i do for the calculation of purity uncertainty in case the standard salt purity more than 100%
I recommend that you see this link: https://www.bing.com/search?q=Statistical+methods+in+Analytical+Chemistry&qs=n&form=QBRE&sp=-1&ghc=1&pq=statistical+methods+in+analytical+chemistry&sc=1-43&sk=&cvid=390C46334CF847F59E0400C06DE372DB
as well the analytical chemistry literature. To deal with these types of question is why Thomas L. Isenhour, Bruce Kowalski, and Peter Jurs along with others founded Chemometrics. Best wishes, David Booth
- Badges
- Science topic
- Similar topics
- Linguistics
- Composition Studies
- Publication