i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...2 5324
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?1 6152
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.3053
What the difference in loss on drying and residue on ignition2 25909
In case of HPLC coloums what is the difference Between C8 & C18 coloums & how can we select difference type of coloums like Inertial ODS , Hypersil BDS , ODS etc.?4 29567
what is different between volumetric solution and general solution1 16873
what is primary solution and secondary solution2 6401
Principle of single pan analytical balance
what is the extinction coefficient for Indomethacin or at 319nm wave length.
What is control room temperature and which guide line says?
What is a difference between potency and purity?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
As per ICH related substances stability trend limit from initial to shelf life
WHY given much noise PDA dector then VWD Dector
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?
Why perchloric acid used for potentiometric titration
Why we check moisture,ash & AIA in product
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
What is the diference between residual solvents and organic volatile matter
How can we calculate offset value pH measurment
How would you decide dissolution medium for NCE compound of class I drug