Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1471

what is turbidimetric titration?Give 2 examples.

2673

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

931

why xterra column require to use at higher ph?

920

about method developement in hplc

1724

Tell me about analytical method validation in QC

6181

how to select short coloum and long coloumn for new molecule

2452

what is classification of elemental impurities? what is risk assement in elemental impurities?

760

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

830

In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1973

if identification threshold crosses the limits then what next step?

868

can i use hplc detector to uplc and why?

2293

how you fix the limits of impurities?

837

In Dissolution Test why limit is define Q+5% what is the role of +5%.

3108

How to do regeneration of Metacarb Pb plus column?

2580