Residues of persistent chlorinated hydrocarbons in human tissues as studied by neutron activation analysis and gas chromatography

1977 ◽  
Vol 18 (5) ◽  
pp. 581-587 ◽  
Author(s):  
Alf Bjorseth ◽  
Gulbrand Lunde ◽  
Erik Dybing
Keyword(s):  
Gas Chromatography ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Chlorinated Hydrocarbons ◽  
Human Tissues

Neutron Activation Analysis of Mercury in Fish, Flour, and Standard Reference Orchard Leaves by Electrodeposition Radiochemistry

1972 ◽  
Vol 55 (5) ◽  
pp. 960-965
Author(s):  
M W Heitzman ◽  
R E Simpson
Keyword(s):  
Gas Chromatography ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Atomic Absorption ◽  
Mercury In Fish ◽  
Sulfide Precipitation

Abstract A method for neutron activation analysis of mercury is described in which electrodeposition is used to isolate the mercury carrier in the recovery step. Although the recovery of mercury carrier is variable, the results yielded by this technique are comparable to those obtained using sulfide precipitation inneutr on activation analysis. The method was also compared to gas chromatography and atomic absorption techniques and similar results were obtained. No interferences were evident in the samples analyzed: fish, flour, and standard orchard leaves. The method can detect ppb levels of mercury.

DETERMINATION OF U IN HUMAN TISSUES BY DELAYED NEUTRON ACTIVATION ANALYSIS

1988 ◽  
Vol 55 (6) ◽  
pp. 927-932 ◽  
Author(s):  
Edward R. Gonzales ◽  
Ernest S. Gladney ◽  
Howard A. Boyd ◽  
James F. McInroy ◽  
Marcia Muller ◽  
...  
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Human Tissues ◽  
Delayed Neutron ◽  
Delayed Neutron Activation Analysis

scholarly journals Hybrid NAA for study of organic halogens in precipitation in Beijing, China

2011 ◽  
Vol 1 (1) ◽  
pp. 323-326
Author(s):  
Diandou Xu ◽  
Lingling Ma ◽  
Yang Chen ◽  
Zhifang Chai ◽  
Guofei Xu ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Polychlorinated Biphenyls ◽  
Organochlorinated Pesticides ◽  
Pcb Congeners ◽  
Organic Halogens ◽  
Beijing China ◽  
Historical Usage

Abstract The rainwater samples were collected from Beijing, China, from May 2006 to November 2007 and measured by a hybrid neutron activation analysis (NAA) method combining with gas chromatography (GC) for the concentrations and distribution of extractable persistent organic halogens (EPOX = EPOCl + EPOBr + EPOI), polychlorinated biphenyls (PCBs) and organochlorinated pesticides (OCPs). The average concentrations of EPOCl, EPOBr and EPOI in all the samples were 102, 0.18, and 0.31 μg/L, respectively. The relative proportions of the known organochlorines (84 PCB congeners + 10 OCPs) to total EPOCl were 0.03–1.44%, which implied that most of EPOCl measured in rainwater were unidentified. Significant correlations between the logarithms of the concentrations of EPOCl and EPOBr (r = 0.65, p < 0.0001) or EPOI (r = 0.72, p < 0.0001) and between the concentrations of EPOBr and EPOI (r = 0.79, p < 0.0001) were observed, which suggested that EPOCl, EPOBr and EPOI in rainwater might mainly come from the similar sources. There were no clear seasonal trends for the concentrations of EPOX. PCBs in rainwater were dominated by tetra-CB and tri-CB. The homologue was consistent with the technical PCB products in China, which indicated that PCBs in the environment mainly came from the historical usage of technical PCB products.

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