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 76112
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 43173
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?3070
When performing Moisture content how to you say only Methanol react with water not product Explain?2 7321
give me method of calculating co relation of coefficient for HPLC,SOR & ANY OTHER1 1851
difference between pH & pOH ?4 17144
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 10074
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 2614
What is the difference between bulk property detectors and Solute property detectors vivimed labs limited3 11586
IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION2 7259
WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD3 6325
IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE FAILED THEN WHAT IS THE DESSICION U CAN TAKE12 16620
What is the principle of Thermal conductivity detector and FID?
What is the diference between residual solvents and organic volatile matter
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
what is third integration
How to define samples weight in moisture content
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?
sop of a uv visible spectrophotometer double beam elico model
why disodium tartarate used in karl-fischer instrument ?.
can i use hplc detector to uplc and why?
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
What is column in chromatography?
why octanol used to determine the partition coefficient ?
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
What is viod volume and peak purity in HPLC?
Why potassium dichromate was using in Uv calibration?