Interested to Buy Any Domain ? << Click Here >> for more details...
why we use polystyrene film for ftir calibration?
- 4 Answers
- 19278 Views
- Rakshit Drugs, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
polystyrene film made by polymer of styrene,
it is highly durability.
polystyrene film is all bands executed which cover whole IR
Region.
| Is This Answer Correct ? | 7 Yes | 2 No |
Most people are only using FTIR for identification, so
wavelength accuracy is most important.
A polystyrene film is an easy way to calibrate the entire
wavelength range of the instrument. The film produces
sharp absorbance bands at known wavelengths (or
frequencies) which can be used to verify that the
instrument's spectrum is accurate.
And also additionaly other than polystyrene we can use any
other reference material which is having known sharp
absorbence bands at different wavenumbers.
concept is calibrating the instrument against known
material and known results.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / ch.naresh
it is the one of the USP standard. Included in all wavelengths in entire ir region
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sachin chauhan
because polystyrene is madeup of polymer of polyethylene
which are highly stable
| Is This Answer Correct ? | 1 Yes | 2 No |
How long we can use hygroscopic reference standard in terms of water absorb.I mean in line with respective monograph's specification or more than that?
why we use a particular hplc column for a particular compound give reasons?please
0 Answers Dr Reddys, Indoco Remedies, Natco,
Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?
Why dissolution test is not performed in all of the products
Why we show ammonia vapours to tlc plate?to which compounds?
What is excipient in drug product?
what is peak purity and its formula
what is pK & pKa value
how can you determine a compound acidic or basic?
How to fix the concentration for RS by HPLC
What is the optimum period of storage of indicators?
1 Answers Orchid Chemicals and Pharmaceuticals,
Why sodium hydroxide used for maintain pH of phosphate buffer
Organic Chemistry 
