What is the definition of RRF
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Answer / vijay kumar. v
Relative retention factor -used to measure actual quantity of the impurity.
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Answer / suyog chepurwar
relative retention factor or relative response factor
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what is mean by nitrosamine impurities?
What is the difference between BD
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
what is the difference between melting range & melting point? Which is more significant?
In Analytical method development related substance method when did follow w/w method when did follow area normalisation method
2 Answers Dr Reddys, Sun Pharma,
What's the importance of these procedures?
WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR
4 Answers Aurobindo, Meghmani Organics,
What is the difference between chromatographic purity and related substances?
Why use only methanol,used determinationof moisture content not use other solvents
What is the role of SO2,I2, Methanolic hydroxide and any base in Karlficher titration
2 Answers Medley Pharmaceuticals,
In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]
difference between IR & NMR spectroscopy ?