What are the six USP melting point reference standards?
Caffeine,vanniline,acetanilide,sulphanilamide
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What is meaning of audit trail in hplc
3 Answers DRL, Lee Pharma, Raks Pharma,
How to decide restandardisation due or retest or expiry of Volumetric solutions prepared in wet chemistry lab?
Why sulpuric acid only used to ROI but not used nitric acid and some other acids?
7 Answers Cadila, Laurus, Ranbaxy,
what does optical rotation and specific rotataion means,difference between them
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
How will you convert a 6 Normal solution to 8 Normal solution?
what is concentration of oxygen in U.H.P. grade N2 cylinder
In case of HPLC coloums what is the difference Between C8 & C18 coloums & how can we select difference type of coloums like Inertial ODS , Hypersil BDS , ODS etc.?
What is mean by peak tailing in case of GC?
What is oot in Stability analysis? (example)
why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?
what is the difference between isocratic & elution technique?