Answer Posted / dhramveer

Elution of amine and Acid depends upon pH of mobile phase and pKa of molecule. If the mobile phase pH is acidic then Amine will elute first but if the pH is alkaline >7 , then acid may elute first.

If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

1038

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what you do when compound having dwel wavelength?

802

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if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

734

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USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

2065

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identification is for unknown? qualification for known? reporting for LOQ?

774

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what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

939

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

1153

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In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3221

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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.

2627

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what are the standard methods for HPLC?

2829

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How can we calculate offset value pH measurment

1555

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[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

839

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if peak get problamatic then what require to do?

858

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which batch require to use for analytical method validation?

856

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

2229

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