Answer Posted / krishna murthy.b

Sodium salicylate has 4 double bonds in its structure which are conjugated double bonds in structure and it shows clear spot in shorter wavelength(254nm)and longer wavelength(365nm) during UV cabinet calibration for TLC.

How to establish relative response factor for hplc. Why it is required?

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why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

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how many types of balance calibration test?

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[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

855

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can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

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[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

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what is the extinction coefficient for Indomethacin or at 319nm wave length.

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effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

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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 ?

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if content uniformity passing but dissolution varrying then what is next step?

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what is turbidimetric titration?Give 2 examples.

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What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

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before starting analytical method valodation what you checking? and how giving preference to start validation?

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How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

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what is the principle involved in turbidometry and nephelometry ?

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