Answer Posted / umesh patel

microvolt.second

What is the calibration of uv process and preparation

1997

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why we are using benzene, anyline in acetic anhdride assay titration method?

2114

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please explain about aluminium hydroxide assay

1132

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WHY given much noise PDA dector then VWD Dector

2097

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why does used dry caffien in HPLC calibration?

2032

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Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2184

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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.

2224

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How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2389

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in each media we require to use SLS? how to proceed?

787

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how require to fix the linearity and accuracy cincentration range?

1667

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What is similarity factor and its use in api strength?

1299

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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

856

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can i use hplc detector to uplc and why?

2290

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How to set analyticl specification for combination products?

744

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How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2584

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