Why caffeine as a reference standard used for calibration
of HPLC?
- 11 Answers
- 53341 Views
- Gangwal Chemicals, Orchid, I also Faced
- E-Mail Answers
Answer Posted / milind patil
Because of
# It gives a multiwavelength response like 205,245,273 nm
# It is easily available in market
# It is very stable, we can use a long time for analysis
i.e. it is not degradable
# It is chip
| Is This Answer Correct ? | 74 Yes | 8 No |
Post New Answer View All Answers
What is the use of tlc and hplc? And when and where use?
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
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?
What is intact assay method development.....?
which batch require to use for analytical method validation?
what is turbidimetric titration?Give 2 examples.
from where i get mortar pastle for glass bottle crush? it's required for testing of it?
Did anybody have method for acetyl cysteine effervescnce tablet
UV and PDA detector, which have less signal to noise ratio?
how much mass should be there in volumetric flask while in preparation of sample for assay?
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.
Principle of single pan analytical balance
why holium oxide prepared in 10% HCLO4 SOLUTION
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
Related substance method equivalency on control sample or spiked sample?
