Answer Posted / siva

To establish retest or expiry date of volumetric solutions
we have to conduct stability study i.e. day 1 to day 30
through a protocol. based on results we can establish
retest date of volumetric solutions.
Acceptance criteria : At fixed intervals check
predetermined specifications i.e. Apperance and Strenghs. %
RSD for particular intervals shall not more than 1%.

In which situation we require to prepare the standard solution from sample in Related substance method?

825

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How to determine water content of bis tetrazole amine mono ammonium salt

3529

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Why to use propyl paraben in HPLC gradient calibration

7590

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why digestion require in icpms?

827

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What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

885

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function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2721

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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?

735

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What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

2756

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

2027

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if instrument calibration fails then what require to do?

1018

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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...

2071

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If combination product how require to identify which imp is of which api?

865

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why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

2820

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how require to select dissolution media? what is discrimination?

839

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what is mean by peak intigrity?

1027

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