in gas chromatography what is the difference between gas flow rate and average linear velocity ?

0 Answers   USV,

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How can the GC or HPLC method is selected to determine the impurity profile in drug product?

1 Answers   Ajanta,

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what is deference b/w the working standard and reference standard

4 Answers  

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What are the parameters for the method development of Gas Chromatography and GC-HS? 

2 Answers  

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can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????

2 Answers   Cipla,

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effect of Ph during analytical run ?

1 Answers   Lambda Therapeutic Research,

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Which type of analysis we have to done uv spectroscopy

2 Answers  

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how peak can be sharp in hplc when it is come flat

6 Answers   Graviti Pharmaceuticals,

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If we are getting split peak in Chromatogram,what we can do?

7 Answers  

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In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ?

1 Answers  

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what is method development parameter in HPLC method development

6 Answers   GVK,

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why deutiriated chloroform used in NMR for sample prepration. what reaction takes place.give reasons

1 Answers  

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