Answer Posted / deepak

To check theoretical plates,peak shape and resolution means sst of method.

why salisylic acid not using now days for disdolution calibration?

712

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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?

716

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if you get peak in blank then what require to do?

907

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How to fix the sample conc. in Related substances test by HPLC?

1026

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Please give idea about method development for cleaning method and how maco level establish

693

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in which situation ion pair require to use?

743

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1546

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what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3619

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What is the diffrence in japan mkt requirement in analytical method validation over US?

671

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WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2523

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Which parameter require to do for analytical method equivalency?

728

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In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2069

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Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

852

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Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2668

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What is related substance by HPLC impurity limits as per USP?

1030

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