An estuarine sediment sample, IAEA-405, was recently characterised for trace elements and methylmercury (MeHg) for ultimate use as a marine reference material. The reference values were calculated using data sets from 120 laboratories that participated in a world-wide intercomparison exercise. The data evaluation is highlighted, and includes comparisons of different analytical methods, as well ...

A Co-ordinated Research Project (CRP) was established in 1998 by the IAEA Nuclear Data Section (Update of X-ray and gamma-ray Decay Data Standards for Detector Calibration and Other Applications), in order to improve further the recommended decay data used to undertake efficiency calibrations of gamma-ray detectors. Participants in this CRP reviewed and modified the list of radionuclides most s...

Development and applications of isotope methodologies in hydrology have been an integral part of the program component of the IAEA over the last three decades, within the framework of its overall activities related to peaceful nuclear applications. The use of environmental isotopes as a means of tracing water movement in the hydrology including surface and ground water is much of the Agency's w...

VALIDATION OF FAO/IAEA/PANAFTOSA ELISA KIT FOR THE DETECTION OF ANTIBODIES AGAINST FOOTAND-MOUTH DISEASE VIRUS IN VENEZUELA. A liquid phase blocking ELISA (LPBE) supplied by FAO/IAEA/PANAFTOSA has been evaluated for the qualitative and quantitative detection of specific antibodies to "O" and "A" serotypes of foot-and-mouth disease (FMD). A total of 240 bovine sera were analyzed. 120 sera from n...

IAEA BULLETIN, 42/3/2000 Releases of radionuclides to the atmosphere or to surface waters from nuclear and other facilities using radioactive materials are generally strictly controlled to protect the health of people living in the local and regional environments. Since the 1970s, the IAEA has issued guidance on the control of discharges and, in doing so, it has elaborated upon the basic recomm...

Revised delta(34)S reference values with associated expanded uncertainties (95% confidence interval (C.I.)) are presented for the sulfur isotope reference materials IAEA-S-2 (22.62 +/- 0.16 per thousand) and IAEA-S-3 (-32.49 +/- 0.16 per thousand). These revised values are determined using two relative-difference measurement techniques, gas source isotope ratio mass spectrometry (GIRMS) and dou...

1 Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, Vienna, Austria, 2 Ministry of Agriculture, Natural Resources and Environment, Zanzibar, Tanzania, 3 Vector and Vector Borne Diseases Research Institute, Tanga, Tanzania, 4 Insect Pest Control Section, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, Vienna, Austria, ...

The Joint Food and Agriculture Organization/International Atomic Energy Agency (IAEA) Division of Nuclear Techniques in Food and Agriculture, based at the IAEA in Vienna, Austria, has extensive experience in helping to develop and validate assays and has provided strong support in developing World Organisation for Animal Health (OIE) norms. This paper will focus on enzyme-linked immunosorbent a...