why we are using in ph calibrations ph4,7,9.2 buuffers only?

3 Answers   Reddy Labs, Unichem,

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WHAT IS THE LIQUID PHASE IN DB-624 COLUMN IN GCHS

3 Answers  

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same sample on two preapration gives differnt result during hplc analysis

3 Answers  

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Why chromic acid wash is not recommended by USP for glassware cleaning?

1 Answers   Lupin,

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what does optical rotation and specific rotataion means,difference between them

8 Answers   CPL, Neuland,

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Why methanol & acetonitrile is mostly used for hplc analysis?

2 Answers   DRL,

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some compound havving uv region but not give much more response during hplc analysis

2 Answers  

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what is the difference b/w repeatability nd reproducibility ?

1 Answers   Aptuit Laurus,

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hi i am m.sc organic chem and complete analytical lab tech dipolma now job in qc many time ask question you in m.sc organic why job in qc please help me i can not give proper ans please tell me

3 Answers   Arch Pharmalabs, Natco,

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what is the working priniciple of ph, what are parts in ph meter

1 Answers  

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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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WHY POTASSIUM DICROMATE USING IN UV CALIBRATION

1 Answers   Apotex, Micro Labs, Rene,

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