what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?

1 Answers   Alchemist, Alembic, Apex,

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What is the diffrence between the performing of LOD ordinary drying at voven and vaccum method.

4 Answers   Apex,

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why we are using polystyrene film for calibration of I.R spectroscopy?

12 Answers   Abbott, Andhra Organics, Intas, Kemwel, Reddy Labs, RRR, Veritas, Zydus Cadila,

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effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

0 Answers  

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how require to fix the linearity and accuracy cincentration range?

0 Answers  

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Any molecule is filing for ANDA purpose, what are the dissolution requirements / specifications needed ?

1 Answers   IPCA,

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Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?

6 Answers   Hapten Healthcare, Pharmaceutical,

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What the difference in loss on drying and residue on ignition

2 Answers  

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What is the purpose of octyl silane columns?

0 Answers  

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Hello Dear all; I have a technical question related to analytical Chemistry, I have a sample of (40% w/w) Ferric Chloride solution (for water treatment purposes which consist a little portions of Ferrous Chloride and Hydrochloric acid. I need to know the methods to determine the percentages of each Ferrous Chloride and Chloride acid. Also I want to make sure that this solution is truly (40% w/w). So ANY CLUE !!! Thanks in advance.

2 Answers  

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in gas chromatography what is the difference between gas flow rate and average linear velocity ?

0 Answers   USV,

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What impact analysis required for out of calibration and how to proceed

2 Answers   Aventis,

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