Answer Posted / ravali

to identify a compound both or and sor r required.bcz SOR
depends on OR where as OR changes with concentration ,so
not stable.SOR=OR/C*Lwhere c=concentration,L=cell
length.for a unkown compound of known concentration SOR
does not changes with cocentration,so we can identify the
compound.

Which parameter require to do for analytical method equivalency?

818

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

822

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how to decide for one product require water content or LOD?

836

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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?

1959

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Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2889

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what is turbidimetric titration?Give 2 examples.

2730

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how pda detector works over uv?

778

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What is the difference between purge septum flow and column flow in gas chromatography?

2643

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In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

974

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mahagenco syllabus for the post of chemist

6512

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why are measure gas flow " ml " in Gas chromatography

1699

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using gradient pressure in gas chromatography are not ?using gradient pressure why

3439

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how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2649

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Tell me about analytical method validation in QC

6236

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how can I make the copper get white bye any salt or acit?

2264

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