what is the difference between BDS and ODS Columens and both are same or not

2 Answers   Intas, IPQA, Micro Labs, Vasava Engineering Private Limited,

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When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?

2 Answers   Torrent Pharma,

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What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

0 Answers  

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Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 Answers  

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how many types oos and oot

1 Answers  

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what is the diference between spectroscopy and chromatography

2 Answers   Cipla, PharmChem, Reliance,

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HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?

11 Answers   Cipla, Orchid,

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What is Arsenic Test?

0 Answers   Flamingo Pharmaceuticals,

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what is mean by theoritical plates(not formula) ?

4 Answers   Micro Labs,

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UV and PDA detector, which have less signal to noise ratio?

0 Answers  

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all types of questions asked at the cipla interview

0 Answers   Aurobindo, Calyx, Cipla, Graviti Pharmaceuticals,

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I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

0 Answers  

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