Answer / brahmanandareddy

In chromatography technics separation is based on analyte interaction between the stationary phase and mobile phase. This type of interaction maybe adsoption,partition,hydrophobic,polar-polar interaction

How to calculate LOD & LOQ in HPLC Validation Method

14 Answers   Dr Reddys, GSK GlaxoSmithKline, Reddy Labs, Reliance, UIS,

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Shall i use a same hplc column for two different products.?

3 Answers  

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Difference between uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?

3 Answers  

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why do we adjusted ph in the mobilphase

9 Answers   Cipla, Dr Reddys, Reddy Labs,

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what is poarimeter, why it is used in pharma,and explain briefly about polarimeter?

3 Answers   GVK,

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

1 Answers   Cipla,

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why we are using k2cr207 in uv calibration ? why we r not using kmno4?

1 Answers   Glochem, Sidmak Laboratories,

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if you have given a blank water how you analyse by general analytical techniques?

0 Answers  

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some 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 ?

0 Answers   Micro Labs, VMSRF,

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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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cefoperozone and sulbactam inj. hplc test method

0 Answers   Graviti Pharmaceuticals,

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why urasil use in hplc column perfomance?

1 Answers   Bayer,

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