Answer Posted / apparao

optical rotation is the property of a substance when a
polaarized light passed in which angle it rotates.where as
SOR is the property of substance to rotate a polarized
light at a specific temperature and concentration

what is mean by 40 in the dissolution basket mesh size?

715

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CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1149

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if instrument calibration fails then what require to do?

894

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What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8807

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on saturation solubility study data how we can find out the bcs class of drug?

827

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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?

3487

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Difference between hlaf and rlaf

2057

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what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4420

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Why six unit used for precision?

1274

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about method developement in hplc

1665

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If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

758

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Why perchloric acid used for potentiometric titration

2631

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Why we use potassium dichromate in uv calibration Exact reason behind it??

1188

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what is partion and column chromatography

2300

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Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

687

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