diference b/w packed &capilary columns

2 Answers  

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whai is primary standard?

10 Answers  

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how you start RS method development when for new product?

0 Answers  

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Which Zone of our country like conducting of Stability studies(Accelerated & Long term stability studies)as per ICH guidelines.

4 Answers  

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on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process

7 Answers   Cipla, Ranbaxy,

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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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what is analytical chemistry all about?

6 Answers   Dr Reddys,

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why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?

1 Answers  

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using gradient pressure in gas chromatography are not ?using gradient pressure why

0 Answers   Reliance,

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Is it compulsory to prepare KBr disc with sample in identification test by FTIR?

2 Answers  

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What is the b/W dead volume and dwell volume ?

2 Answers  

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why base line not start from zoro in GC Chromatograme.

1 Answers   Merck,

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