Definition of beers_ lamberts law4 3496
Why monograph of hplc coming upperside of drift but in IR monograph coming in drift side?1 1978
Why a1% value is used for some product ? What is the criteria for selection a1% value ?1019
if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?1 1628
how pyridine can be analysed other than GC?1 2080
What is the calibration of uv process and preparation757
How to prepare 1000ppm methylene blue solution2 4476
Identify problem faced when mass spectroscopy is used with HPLC system ?733
Why perchloric acid used for potentiometric titration
what is third integration
How would you decide dissolution medium for NCE compound of class I drug
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
pharma industries oriented
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
Tell me about analytical method validation in QC
What is importance of pH in the Heavy metal test and How it effect on the test results?
What is the main difference between ODS1 and ODS2 Hplc column.
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain