Why caffeine as a reference standard used for calibration
of HPLC?
Answer Posted / rohidas baban shinde
Because it shows maxima at the wavelength of 205 nm and 273
nm and shows and also shows minima at the wavelength of 245
nm. It is a Primary reference standard and it is avaliable
in the market very easily.It is cheap.It is non-degradable
and we can used it for longer period of analysis.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
What is related substance by HPLC impurity limits as per USP?
in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?
Why potassium dichromate is used in calibration of uv?
What is delay volume?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
Tell me about analytical method validation in QC
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
How to calculate coreletion coefficient
what is the purge flow & how to calculate
Did anybody have method for acetyl cysteine effervescnce tablet
What is the principle of Thermal conductivity detector and FID?
how much mass should be there in volumetric flask while in preparation of sample for assay?
identification is for unknown? qualification for known? reporting for LOQ?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?