Answer / manoj reddy

To prevent the oxidation of Fe2+ ions of Mohr's salt to Fe3+ ions.Ferrous ions of Mohr’s salt undergo hydrolysis in aqueous solution. To prevent the hydrolysis, Conc. H2SO4 needs to be added to the Mohr’s salt crystals during the preparation of its standard solution.

What are usp limits for total impurities,unknown impurity

1 Answers   Dr Reddys,

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why we can use only 4 and 7 and 9 buffers in pH calibration

1 Answers   Chola, Cipla,

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What is Isotope tracer technique?

1 Answers   LAP, MAHINDRA, MPSC, PSI Data Systems, WNS,

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how much mass should be there in volumetric flask while in preparation of sample for assay? 

0 Answers   Reddy Labs,

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Principle of single pan analytical balance

0 Answers   Amneal Pharmaceuticals, Bayer, Dr Reddys,

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what is full form of RVT

1 Answers  

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what is Fourier Transform

3 Answers   Graviti Pharmaceuticals, GVK,

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What is post run in hplc?

1 Answers   Cipla,

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How did you conclude that when stressing a compond, all degradation products have eluted in chromatogram?

7 Answers   Matrix,

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What will be the effect on HPLC analysis result if three mobile phases given separately through three valves and same proportion mixed together and given by one valve?

1 Answers   LOIL,

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what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

0 Answers   Sandoz,

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From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?

1 Answers   Cipla, MSN Pharma,

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