Answer Posted / tushar

4-7.5pH

how to calibrate hplc & gc

4460

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

853

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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...

1968

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Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1633

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In IR spectra, generally a molecule vibrates without apply emr or ir light?

1906

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mahagenco syllabus for the post of chemist

6426

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Qc interview questions

1694

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How we can identify process related and degradation impurity in single method with short period?

758

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what is the difference between potentiometric titration and karl fischer titration?

3113

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if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

900

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why holium oxide prepared in 10% HCLO4 SOLUTION

1404

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What is importance of pH in the Heavy metal test and How it effect on the test results?

2219

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why cone formation during dissolution?

730

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What is aggregate and fragments in SEC?

2060

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What is the difference between spectro meter and spectro photo meter?

11345

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