Answer Posted / en

For example in pharmaceutical chemistry primary standard will be pharmacopoeia's standard - USP or CRS, but they are very expensive. So you can fully characterize your "in house" material as your primary standard and use it for analysis. All next batch of standard, characterized vs. primary will be secondary standard. A part of primary standard should be stored for secondary standards characterizations.

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

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iam usig ph buffers merk. manually how to prepare ?

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If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

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pharma industries oriented

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HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

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why octanol used to determine the partition coefficient ?

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What is Band broading effect explain

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in which situation require to change rs specification?

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what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

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how to calibrate hplc & gc

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What is similarity factor and its use in api strength?

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What is the formula for relative diffrence for standard solution in solution stability in validation?

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What is similarity factor?

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mahagenco syllabus for the post of chemist

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How to do regeneration of Metacarb Pb plus column?

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