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in gas chromatography what is the difference between gas flow rate and average linear velocity ?
USV,
2543Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%
2 6261what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
1925In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?
1 4700Post New Analytical Chemistry Questions
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
what is turbidimetric titration?Give 2 examples.
How do we fix the sample concentaryion in hplc method development?
How require to perform linearity as per ANVISA? What are the acceptance criteria?
acceptance criteria for lod & loq by standard deviation of response and slope??
why digestion require in icpms?
How do we fix the sample concentaryion in hplc method development. What is the basis?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
using gradient pressure in gas chromatography are not ?using gradient pressure why
Basic principle of ESI?
Why only 1.2 million lux hours require in photostability study?
what is the extinction coefficient for Indomethacin or at 319nm wave length.
Why perchloric acid used for potentiometric titration
how you start RS method development when for new product?
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
