why we are using polystyrene film for calibration of I.R
spectroscopy?
Answers were Sorted based on User's Feedback
Answer / srinivas- drreddys
Because in polystyrene film all bands executed
| Is This Answer Correct ? | 65 Yes | 10 No |
Answer / nagaraj
polystyrene film is made by the polymer of styrene.its
having highly durability and stabeled at any temparature
because its made by the polymers.
| Is This Answer Correct ? | 56 Yes | 6 No |
Answer / g ramesh
Because in polystyrene film all bands executed.and
polystyrene film is made by the polymer of styrene.its
having highly durability and stabeled at any temparature
because its made by the polymers.
| Is This Answer Correct ? | 34 Yes | 6 No |
Answer / rambabu
Because it gives accurate result at any condition & any Temp
| Is This Answer Correct ? | 39 Yes | 15 No |
Answer / ramesh
IT WILL GIVE THE TRANSMITTANCE TO THE ENTIRE REGION OF IR.
| Is This Answer Correct ? | 18 Yes | 5 No |
Answer / k ramesh naidu
polystyrene film having the all functional groups in the entire range of IR region. Because it consists of all carbon linkages related to all kind of groups.
| Is This Answer Correct ? | 16 Yes | 6 No |
Answer / t.sudheer
Because in polystyrene film all functional groups
executed.and polystyrene film is made by the polymer of
styrene.its having highly durability and stabeled at any
temparature because its made by the polymers.
| Is This Answer Correct ? | 20 Yes | 11 No |
Answer / s.j.patel
because poltstyrine give sharp result in ir region.
| Is This Answer Correct ? | 6 Yes | 4 No |
Answer / hitesh sharma
Polystyrene films have long been used for checking the general performance of infrared (IR) spectrometers and specific tests for wavenumber accuracy and resolution based on such films are enshrined in various pharmacopoeias (1–4).
| Is This Answer Correct ? | 0 Yes | 0 No |
It is a polymer. Environmentally it will not affect their
own properties and temperature also. So we are using this
one for calibration purpose.
| Is This Answer Correct ? | 5 Yes | 8 No |
what is the difference b/w repeatability nd reproducibility ?
what is titrent,& titrate
2 Answers Graviti Pharmaceuticals,
What is the lab normality??
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
why do we have to used saturated ammonia in TLC
Why caffeine as a reference standard used for calibration of HPLC?
11 Answers Gangwal Chemicals, Orchid,
Is it compulsory to prepare KBr disc with sample in identification test by FTIR?
why we use x terra columns at higher ph ?
why disodium tartarate used in karl-fischer instrument ?.
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?
1 Answers Cadila, Dr Reddys, GICC, Mylan, Sygene, Torrent Pharma, Zydus Cadila,
In HPLC when we use Isocratic method, Gradient method in hplc?