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why we are using hexane in calibration of number of drop per mL
What is shaking level in GC?
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
Why Ethanol is Used for Standardization of GC Head space?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
What is dose dumping? why require to do?
in hplc chromatogram started from left to right and in uv spectrum started from left to right
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
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 is the structure of DOWEX-50
How we choose the mobile phase for method development.?
what are the standard methods for HPLC?
