Answer Posted / falguni patel

1ml of KF reagent consumes 5mg of water minimum....so its factor is near 5.
You can see this relation on KF reagent bottle.

how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

2276

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2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2201

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if rsd failed then what require to do?

814

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Why perchloric acid used for potentiometric titration

2660

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How you develop a method in HPLC?

2601

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Why are use silicon oil mr?

1182

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Difference between hlaf and rlaf

2086

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If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

837

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Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2812

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in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

738

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4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2697

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Why dissolution test is not performed in all of the products

2523

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in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

709

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Why irmoisture balance is used for corrugated box moisture testing

2390

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in hplc chromatogram started from left to right and in uv spectrum started from left to right

933

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