reduction and reducing agent
What is the difference between SEM and TEM? Write the advantages of TEM over SEM?
Which components are used in the X-ray photoelectron spectroscopy (XPS) instrument? Briefly explain with a schematic diagram of XPS Instrumentation.
Indium and Cadmium ions in 0.1 M HCl give peaks at potentials -0.557 V and -0.597 V by differential pulse polarographic analysis. When a standard solution containing 0.4 ppm of indium is analysed, it gave peak current (in arbitrary units) corresponding to 100.25 at -0.557 V and 43.75 at -0.597 V. A standard solution containing 0.4 ppm of Cd gave ip 29.52 at -0.557 V and 64.8 at -0.597 V. What is the concentration of indium and cadmium in a sample if the peak current is 190 at -0.557 V and 120 at -0.597 V.
Briefly explain the basic principle of Auger Electron Spectroscopy (AES) with a suitable diagram.
What are amperometric titrations? Draw common types of curves obtained in amperometric titrations. What will be the shape of the curve in bioamperometry for the titration of iodine by thiosulphate?