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 76660
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 43473
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?3090
When performing Moisture content how to you say only Methanol react with water not product Explain?2 7364
give me method of calculating co relation of coefficient for HPLC,SOR & ANY OTHER1 1899
difference between pH & pOH ?4 17269
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 10161
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 2662
What is the difference between bulk property detectors and Solute property detectors vivimed labs limited3 11707
IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION2 7310
WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD3 6369
IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE FAILED THEN WHAT IS THE DESSICION U CAN TAKE12 16799
How to determine water content of bis tetrazole amine mono ammonium salt
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
what is partion and column chromatography
how can give the expiry period and restadardisation of volumetric solution
How to choose concentration of LOQ solutions for RS analysis? Example.
how the compound separate in coulunm,explain
How to do regeneration of Metacarb Pb plus column?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
How can we calculate offset value pH measurment
In Dissolution Test why limit is define Q+5% what is the role of +5%.
What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
What is intact assay method development.....?
Why sodium hydroxide used for maintain pH of phosphate buffer
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR