what are peak purity,peak purity index,peak thresold2 11937
1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation1 10781
Why we are using K2Cr2O7 for control of absorbance in UV?2 10046
1 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv3 9261
what is the principal of malvern particle sizer & its used in pharma industry3 5732
In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?2 4898
same sample on two preapration gives differnt result during hplc analysis3 4979
Why we are using a Kf Factor range 4 to 67 34780
What is difference between Chromatographic purity and Related substances analysis?3 17659
for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
Difference between hlaf and rlaf
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????
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,
why we should take dst factor for below 1%moisture samples
Principle of single pan analytical balance
WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?
Explain the relations between number of carbon atoms in alkanes and retention time ?
Why irmoisture balance is used for corrugated box moisture testing
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 limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
WHAT IS THE USE OF STARTER ?????????