Answer Posted / nandkishor

The method is based on stoichiometric reaction between water
and a solution of sulfur dioxide and iodine in pyridine(or
any other base)and methanol the end point is detected
electrometrically

if you have given one product then how you determine the impurity in that?

738

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Explain the relations between number of carbon atoms in alkanes and retention time ?

2144

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how pda detector works over uv?

739

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before starting analytical method valodation what you checking? and how giving preference to start validation?

803

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using gradient pressure in gas chromatography are not ?using gradient pressure why

3390

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How to do regeneration of Metacarb Pb plus column?

2579

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What is similarity factor?

1206

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in which situation ion pair require to use?

814

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how require to set assay concentration for standard and sample?

918

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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?

2831

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What is the requirement for brazil in the analytical method vslidation comparr to ich?

779

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3216

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If combination product how require to identify which imp is of which api?

839

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cefoperozone and sulbactam inj. hplc test method

2689

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How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

734

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