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Radioanalytical methods:
Radioanalytical methods using radiotracers and activation analysis are more sensitive and specific because of ease of detection of nuclear radiation. Being dependent on nuclear property there is complete absence of chemical interferences. Details of isotope dilution analysis (IDA), radiometric titration, radiochromatography and radioimmunoassay including their principles of methodology, applications, advantages and limitations are discussed. The principle of neutron activation analysis, its methodology including instrumentation and typical applications are discussed. Instrumental neutron activation analysis (INAA) has the special advantage of being nondestructive and multielemental besides being blank free and hence very useful for forensic and archaeological studies. However, INAA is suited for the determination of total elemental content only but not suited for speciation studies. A comparative account of NAA and IDA with other trace analysis methods is presented. These methods are preferred in spite of the fact that specially licensed laboratory and radiation safety measures are required.
The equilibrium cell potential of the galvanic cell Pt | H 2 (g, f =1 bar) HCl (aq, 0.500mol kg -1 ) | Cl 2 (g, f =1 bar) | Pt is found to be E cell, eq = 1.410V at 298.15
Isoelectric point - physical characteristic of proteins Each protein has a characteristic isoelectric point for which its ionisation is minimum. Such as amino acids, proteins,
SIr Plzz do guide me that why only 7 groups of transition element are used for salt analysis ? Others are not used for salt analysis...mean other tranistion elements?
What are molecular orbitals? How are they formed? What does molecular orbital theory states? what is the significance of molecular orbital theory? Ans) Molecular orbitals are for
Explain trend in variation of the atomic size properties from Boron and Thallium
Describe the mechanism of ferromagnetism Ferromagnetism is the basic mechanism by which certain materials (like iron) form permanent magnets or/and exhibit strong interactions
a. 'Hormones are chemical messengers.' Explain? b. Name the main disease caused due to lack of the vitamin and its source in each of the following: A, B 6 and E.
Q. What do you mean by electro-magnetic radiation? In the untimely twentieth century scientists accepted the idea that an atom consisted of a massive positively charged nucleus
What is the maximum number of electrons which can be accommodated in an atom in which the highest principal quantum number value is 4: (1) 10 (2) 18 (3) 32
The order of filling of electrons in the orbitals of an atom will be : (1) 3d, 4s, 4p, 4d, 5s, (2) 4s, 3d, 4p, 5s, 4d (3) 5s, 4p, 3d, 4d, 5s
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