What is the difference between void volume and delay volume in HPLC?

3 Answers  

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How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

0 Answers   Graviti Pharmaceuticals, Vimta Labs,

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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 Answers  

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why SGF media used for dissolution . What is the use of it .can we use other media of lower pH instead ot this?

1 Answers  

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Which Pharmacopiea follow calibration of HPLC,GC

3 Answers   Bayer, Reddy Labs,

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what is mean by nitrosamine impurities?

0 Answers  

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What does theoretical plates number mean?

1 Answers   Zydus Cadila,

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Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

6 Answers  

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WHAT IS THE USE OF STARTER ?????????

0 Answers   Sharp,

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What is the principle of HPLC?

3 Answers   Cipla, Lupin,

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what is SOP?How can prepare?

1 Answers   Reddy Labs,

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What is the difference between low pressure gredient and high pressure gredient in hplc instrument?

4 Answers  

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