Why we use caffeine for HPLC calibration in Detector wave
ength accuracy test
Answer Posted / eapen
Along with the above mentions
1.It can be seperated in any RP columns.
2.It is a highly polar compound.It elutes readily in a
reverse phase column. So less time is required.
3. It is highly stable in solutions for a longer time.
4. It is recommended to use Theobromine also in Detector
wavelength accuracy check.
| Is This Answer Correct ? | 14 Yes | 2 No |
Post New Answer View All Answers
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
How we choose the mobile phase for method development.?
how to calibrate hplc & gc
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
What is Band broading effect explain
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
how to qualify the impurity?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
from where i get mortar pastle for glass bottle crush? it's required for testing of it?
acceptance criteria for lod & loq by standard deviation of response and slope??
what is mean by dissolution biowaiver study?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
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?