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Organic Chemistry (342) - Inorganic Chemistry (123)
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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 14373on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process
7 14959why all the concentration of chemical species are measured using water as solvent (for examole 1N NaOH means 40 g of NaOH in one litre of water)eventhough there are so many solvents available?
1 3802how do start hplc method development? how much sample required for developing the method development?
3 51114which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?
1 8053Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?
1 4934hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com
1818hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.but our company didn't give d OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents along with sample RESUME,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com
2456
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
Practically why we get negative absorption in UV SPECTROPHOTOMETER when the time of cleaning sample analysis. is negative absorption in Uv valid or not?
WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?
Why we are use glass viscometer, and what is calculation manual calculation formula as per USP. How many types of viscometre in glass type viscometer.
Why sodium hydroxide used for maintain pH of phosphate buffer
what is the principle involved in turbidometry and nephelometry ?
What is buffer?
What are the primary considerations in extractables and Leachables ?
what is turbidimetric titration?Give 2 examples.
Why are metals often good catalysts? : Polymer Chemistry
Why dissolution test is not performed in all of the products
In what ways can Actinium be used in conjunction with other elements or compounds to create new materials or compounds with specific properties?
how you start RS method development when for new product?
What is the min constitutes of haematite ore?
pls send me ongc privious entarnace exam papers
