What is the exact reason to use THF and IPA in buffers of
Reverse phase HPLC as a solvent?
Answer / bhushan patil.
Both THF and IPA are modreatly polar solvent dissolved most of the polar and nonpolar compound .In revers phase tecnique stationary phase is Non-polar and mobile phase is polar.Hence this solvent are used in revers phase.
| Is This Answer Correct ? | 0 Yes | 1 No |
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?
From where 16 or 5.545 is derived in theoretical plates calculation formula by USP or JP/BP/DAB and what is meaning of this coefficient and impact in calculation ?
2 Answers Nectar Lifesciences,
In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
0 Answers Graviti Pharmaceuticals,
what is the meaning of ventillation in HPLC?
3 Answers Amneal Pharmaceuticals,
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
Describe your experience with quality assurance and quality control analyses?
11 Answers Aurobindo, Dr Reddys, MSC, Reddy Labs,
if relative response factor is 1.07, to select how much value
Difference between standard operating procedure and standard test procedures in pharmaceutical industry
What is column dead volume?
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 Answers Teva Pharmaceuticals,