Answer Posted / dhiraj tiwari

Methanol is polar solvent.all drug are also polar nature and neutralized the kf reagent.

Basic principle of ESI?

2160

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How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7611

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WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2627

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What is dose dumping? why require to do?

964

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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?

939

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In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3189

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WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2144

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CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1218

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pharma industries oriented

2258

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why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

2274

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function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2676

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how to get accurate result for Residue on evaporation in purified water

1657

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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.

2698

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How to fix the sample conc. in Related substances test by HPLC?

1110

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analytical method validation require to with respect to release specification or shelf life specification?

807

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