Radioisotopes on the Web

Select option, Detection and use of Radioisotopes, and review appropriate topics in radioisotope counting. 

Beta particle absorption Compound radioisotopic decay Radioisotopic decay Introduction to Geiger detectors Introduction to counting statistics 

In this chapter we will explore the underlying principles of centrifugation and discuss the application of this technique to the isolation and characterization of biological molecules and cellular components. 

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CHAPTER 7 Contents XVii Study Problems 1 87 Further Reading 1 87 Radioisotopes on the Web 1 88 Centrifugation in Biochemical Research 1B9... 

Values from the 2001 table Pure Appl. Chem., 2003, 75 1107-1122. The values of zinc, krypton, molybdenum, and dysprosium have been modified. The approved name for element 110 is included see Pure Appl. Chem., 2003, 75 1613-1615. The proposed name for element 111 is also included. Reproduced from http //www.chem.qmul.ac.uk/iupac/AtWt/. The table is also available from mirror sites in Germany, Japan, South Africa, and USA. World Wide Web version of atomic weight data prepared by G. P. Moss, originally from a file provided by D. R. Tide. Note The claim [Phys. Rev. Lett., 1999, 83 1104) for elements 116 and 118 has been withdrawn (see Chem. Eng. News, 2001, 79 10 (6 August 2001) 2002, 80 12 (22 July 2002) Phys. Rev. Lett., 2002, 89 039901). Previous values may be consulted from the 1993 table, the 1995 table, the 1997 table or the 1999 table. The original paper should be consulted for details of the half-life of the radioisotopes quoted below. Also there is a report on the different isotopic compositions of some non-terrestrial materials. A number in parentheses indicates the uncertainty in the last digit of the atomic weight. 

The spatial and temporal importance of DIP availability in trophic food webs of coastal and estuarine systems has been hinderd by methodology. Simply measuring DIP concentrations alone provides only limited information on how P affects primary production. To borrow once again from the coastal/open ocean literature, new P radioisotope techniques have proven to be a more effective means of understanding P dynamics (Lai and Lee, 1988 Waser et al., 1996 Benitez-Nelson and Buessler, 1999). The two P radioisotopes... 

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