why KBr is used in FTIR SPECTROSCOPY and why is it necessary
to triturate KBr during FTIR analysis?
Answer Posted / surya prakash
kbr is one of the compounds which donot absorb the provided
radiations of "IR" and hence donot exhibit its absorption
pattern in the graph.........&&&&&&&
:
:
kbr only to make sure that the sample stands correctly and
its uniformly distributed in the pellet
| Is This Answer Correct ? | 60 Yes | 19 No |
Post New Answer View All Answers
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
In which situation we require to analytical method validation of excipient?
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
in which situation require to change rs specification?
how you fix the limits of impurities?
we can use expired sample for validation and analyst qualification?
How to choose the which salt is suitable for mobilephase
in which situation require to take incident in validation?
how pda detector works over uv?
What is aggregate and fragments in SEC?
How to set specification of assay, fisdolution and related substances?
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?
why require to add enzymes in capsules dissolution only? is it require to tablet also?