NH2-CH2-COOH belongs to what structure?11 14072
what are ligases?which type of reactions they will catalyse?1 2717
what is the difference between coordinate covalent bond and covalent bond?7 19557
what are the 4 classes of unsaturated fatty acids?1 1307
why the atomic weights are in fractions?1 2663
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?
why use k2cr2o7 , kcl h2so4 in uv calibration
can you pls provide chemistry previous papers for the post of trainee chemist in ap genco
how to calculate corelation coefficient in G.C Calibration? what is the calculation part?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
what is internal standard define
What is column in chromatography?
In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
how to select short coloum and long coloumn for new molecule
importance of internal standard and in what conditions it is used?
How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.
What are the factors effect peak shape in HPLC ?
we shall use Dichloromethane in last stage of API.
The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?
how much time require for day to prepare the ongc exam for evarage student?