why phepolphthalene giving pink color when we titrate against to NaOH Solution ,giving colrless titrating aginsiting with acids?
2 4705what is the difference between loss on drying in ordinary oven technique and vacuum oven technique
4 14242what is the difference between LOSS ON DRYING IN ORDINARY OVEN TECHNIQUE AND VACUUM OVEN TECHNIQUE
6 24126why we are using only lead standard solution for Heavy metals test? what is the purpose of this?
4 12659what is the difference between the ordinary loss on drying technique and vacuum oven technique?
1 8043what is the difference between gc& hplc. why we r not calculating purity by gc for final products
5 15743Post New Analytical Chemistry Questions
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
please explain about aluminium hydroxide assay
Why we check moisture,ash & AIA in product
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
cefoperozone and sulbactam inj. hplc test method
how require to set assay concentration for standard and sample?
in OSD forms require to use gas chromatography?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
how to calculate elemental impurities?
in which situation require to take incident in validation?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
what is diffrence between specificity and selecivity?
What is shaking level in GC?
