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hii, i'm had a sample of 1L that gone through extraction & evaporation. i used 0.5ml of methanol for reconstitution before injecting the sample to HPLC. i made a calibration curve using a standard solution but now i'm confused about how to display the concentration i got from the sample. for ex. i got 0.2ug/ml how i'm gonna explane this is for the 1L ? please help .. i'll really appreciate it thanks
1 4304Dear Sir, This is Thirunavukkarasu am working in Ordain Health Care AR&D, Am Having one problem While doing method development my question Metadoxine and Pyridoxine same chemical nature and structural activity i tried lot of methods but Analyte eluted same Retantion time i cant separate both peaks. solubility, pH both are same only only difference melting point metadoxine 210 C Pyridoxine 102 C please do the help needful for me
5 9918some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
2708When ever we perform system suitability,inject the corresponding standard 6 times why? is thair any reson
4 10936Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
30321)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
2946
Define an electrochemical corrosion. What are the types of electrochemical corrosion? : Electrochemistry Corrosion
State lambert’s law.
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
What are the primary considerations in extractables and Leachables ?
Why is ammonia added? Why is that same amount of ammonia added?
What is control room temperature and which guide line says?
What is the resulting solution when benzene and toluene are mixed ?
What is the role of stannous chloride?
Name the element which was used to make the first atomic bomb?
4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions
we can use expired sample for validation and analyst qualification?
What are the constituents of cements?
What is the composition of Barford Reagent?
How require to perform linearity as per ANVISA? What are the acceptance criteria?
why Nacl solution called as brine solution?
