which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance1 1727
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?730
why in GC calibration of linearity regression coefficient should not be less than 0.9991 3380
Why we are having specification 100% above in case of assay as there is only 100% of compound?2 3245
why we are taking 89ml concentrated HCL for preparing 1N HCL3 5551
Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?2 3236
What are the terms used during Melting Range Analysis ?2 1980
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?1084
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc991
In which cases factor of KF Reaget got higher side2 3799
what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method1179
What is the difference between BD1 892
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
Why to use propyl paraben in HPLC gradient calibration
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
why we use a particular hplc column for a particular compound give reasons?please
what type of questions asked on analytical balance and also give answers................all pharma companies?
What is the Formula for coreletion coefficient in plhplc calibration
what is %labelled amount in content uniformity of dosage unit and its calculation?
sop of a uv visible spectrophotometer double beam elico model
what is partion and column chromatography
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
WHAT IS DIFFERENCE B/W MALTINGRANG/DSC
In IR spectra, generally a molecule vibrates without apply emr or ir light?
Identify problem faced when mass spectroscopy is used with HPLC system ?