what is the purpose of Buffer in any titration?Ex:In determination of hardness of water we use ammonia ammoniachloride buffer in titration with EDTA.Why?13 74105
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?10 41426
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?3003
When performing Moisture content how to you say only Methanol react with water not product Explain?2 7098
give me method of calculating co relation of coefficient for HPLC,SOR & ANY OTHER1 1703
difference between pH & pOH ?4 16691
How we develop a method by HPLC for unknown compound,if we got three peaks with same response then how we can find out which one is our desired compound's peak without taking help of LC MS.4 9761
In case of dissolution test, if there is variation within 6 individual units however the batch is complying as per S1 criteria, is it necessary to do investigation for the same? What should be the criteria for such variation?1 2439
What is the difference between bulk property detectors and Solute property detectors vivimed labs limited3 11152
IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION2 7081
WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD3 6098
IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE FAILED THEN WHAT IS THE DESSICION U CAN TAKE12 15995
What is the pilot-plant in pharma sector.
What is the purpose of octyl silane columns?
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
What is gelatinization?
pda detector mechanism?
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
Qc interview questions
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
give clarity of linearity and range in method validation
Can we interpret accuracy from linearity in method validation?
How can we calculate offset value pH measurment
what is the principle involved in turbidometry and nephelometry ?
explain 5 components of gas chromatography ?
What is method validation in quality control
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.