which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance1 1472
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?605
why in GC calibration of linearity regression coefficient should not be less than 0.9991 3025
Why we are having specification 100% above in case of assay as there is only 100% of compound?2 2837
why we are taking 89ml concentrated HCL for preparing 1N HCL3 5003
Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?2 2557
What are the terms used during Melting Range Analysis ?2 1659
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc859
In which cases factor of KF Reaget got higher side2 3376
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 method1002
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
Qc interview questions
calibrtion procedue of LC-MS
how to select short coloum and long coloumn for new molecule
How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
Why potassium dichromate is used in calibration of uv?
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
how can give the expiry period and restadardisation of volumetric solution
what is separation techniques.
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
why octanol used to determine the partition coefficient ?
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????