Why we use caffeine for HPLC calibration in Detector wave
ength accuracy test
Answer Posted / satish setti
1.caffine having mulltiple wavelengths 205,254,273nm.so we can use it at multiple wavelengths.
2.it is primary standard so stable un nature.
3.availability and freely soluble in methanol.
Because of above reasons caffine can be used in calibration.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.
how you fix the limits of impurities?
How you develop a method in HPLC?
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
Why to use propyl paraben in HPLC gradient calibration
A ha tc is actual defination of retention time?
before starting analytical method valodation what you checking? and how giving preference to start validation?
what is mean by nitrosamine impurities?
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
which are the sizes of capsules?
Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6
What are modes of quantification in related substances
How to calibration of the uv spectroscopy and its test?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
if you get peak in blank then what require to do?