Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong? 

5 Answers   Claris Otsuka, Ranbaxy,

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AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

0 Answers  

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What is the difference between c8 and c18 hplc column?

1 Answers  

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Why pH range is 1-14 nt more than 14???

3 Answers   IPCA, Lincoln Pharmaceuticals,

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what is diffrence between Specific optical rotation, optical rotation?

3 Answers  

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what is a placebo peak

2 Answers   GMP Pharma, Optimus,

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iam usig ph buffers merk. manually how to prepare ?

0 Answers  

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What is the Deference between Bulk density & Tap density ?

2 Answers   Hikma Pharmaceuticals, Neuland, Reddy Labs,

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in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole

4 Answers   Strides,

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why linerity not use in GC but use in HPLC ?

6 Answers  

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What should be the calibration procedure for wavelength accuracy in case of HPLC?

4 Answers  

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Please give idea about method development for cleaning method and how maco level establish

0 Answers  

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