Answer Posted / mahesh

Dimethylformamide

What is Band broading effect explain

1872

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What should be the level/ Percentage of Arsenic in Arsenic free zinc.

2221

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how to select short coloum and long coloumn for new molecule

2433

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How do we fix the sample concentaryion in hplc method development?

1130

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what is mean by peak intigrity?

930

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

3206

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What is the purpose of octyl silane columns?

4284

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What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1593

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why salisylic acid not using now days for disdolution calibration?

763

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calibrtion procedue of LC-MS

2702

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sop of a uv visible spectrophotometer double beam elico model

5905

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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?

2822

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What is gelatinization?

1611

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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

846

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Why use only methanol,used determinationof moisture content not use other solvents

1396

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