what are peak purity,peak purity index,peak thresold2 11571
1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation1 10450
Why we are using K2Cr2O7 for control of absorbance in UV?2 9759
1 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv3 9047
what is the principal of malvern particle sizer & its used in pharma industry3 5520
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 4694
same sample on two preapration gives differnt result during hplc analysis3 4800
Why we are using a Kf Factor range 4 to 67 32928
What is difference between Chromatographic purity and Related substances analysis?3 17045
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
As per ICH related substances stability trend limit from initial to shelf life
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
Tell me about analytical method validation in QC
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
what is the difference between potentiometric titration and karl fischer titration?
Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6
In performance Check of GC Why Hexadecane Peak is Considered