Answer Posted / mahesh

1 mg/mL is 1000 ppm

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

913

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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?

8856

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Which parameters require to do in tech transfer?

750

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how you determine moist.of NaOH sol or NaOH flacks

2209

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Difference between the quantitative analysis and qualitative analysis?

1162

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In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

3125

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What is the purpose of octyl silane columns?

4285

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we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1863

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what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2665

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what is definition of validation? which components are followed give detail?

2359

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Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2689

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What is the formula for relative diffrence for standard solution in solution stability in validation?

788

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In Dissolution Test why limit is define Q+5% what is the role of +5%.

3093

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Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1456

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What is diffrence between extractable volume and deliverable volume? Answer pls

4555

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