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?

Amity, Prakriti, Sr Comunications,

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?

Aurobindo, GVK, Sohan Healthcare,

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

Neuland,

What is the Column Endcaping in HPLC ?

Aptuit Laurus,

When performing Moisture content how to you say only Methanol react with water not product Explain?

Orchid,

give me method of calculating co relation of coefficient for HPLC,SOR & ANY OTHER

difference between pH & pOH ?

what r the reasons to get peak telling?

Cipla,

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.

Apotex, Kemwell,

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?

What is the difference between bulk property detectors and Solute property detectors vivimed labs limited

IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION

Dr Reddys, Reddy Labs,

What are the limits for uniformity dosage content for tablets and capsules

Micro Labs,

WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD

IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE FAILED THEN WHAT IS THE DESSICION U CAN TAKE

Cipla,