why KF factor is between 4.5 to 7.5 mg/ml ? why ? why
sometime pyridine is used in analysis like in raw material
solvent like acetone etc?
Answer Posted / pratibha
Because acetone react with methanol and forms water as a side reaction so no end point we get. so for Acetone pyridine or other base we use.
| Is This Answer Correct ? | 13 Yes | 0 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
What is the requirement for brazil in the analytical method vslidation comparr to ich?
Why use only methanol,used determinationof moisture content not use other solvents
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
Why to use propyl paraben in HPLC gradient calibration
What is dose dumping? why require to do?
how require to interprit the method precision data of hptlc?
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
how to qualify the impurity?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
Related substance method equivalency on control sample or spiked sample?
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.
in OSD forms require to use gas chromatography?
Which parameter require to do for analytical method equivalency?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?