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what is main use of primary standards in caliration
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Answer / satish
Primary standards more accuracy and weighing error is negligible and unaltered in air
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Answer / manisha
It is extremely pure,stable. It does not hydrated that's why it is used for calibration
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How to establish pKa for a new API molecule ?
2 Answers Neuland, Sun Pharma,
How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis
How to calculate %w/w and %v/v of a component(or solvent)by NMR
what is the difference between loss on drying in ordinary oven technique and vacuum oven technique
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Why perform dissolution multimedia study in dissolution Development
Why using Holmium oxide in UV calibration
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For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
What is diffrence between residue on ignition and sulphated ash?
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what is the value of pH
mahagenco syllabus for the post of chemist
0 Answers MahaGenco, Unimarck Pharma,
What is primary & Secondary Standard ? Give Example
Organic Chemistry 
