Use of gold as monostandard for the determination of elemental concentrations in environmental SRMs and Ganga river sediments by the k0 method

2001 ◽  
Vol 55 (4) ◽  
pp. 595-602 ◽  
Author(s):  
V.V.S. Ramakrishna ◽  
R.N. Acharya ◽  
A.V.R. Reddy ◽  
A.N. Garg
Keyword(s):  
River Sediments ◽  
Ganga River ◽  
K0 Method ◽  
Elemental Concentrations

Microanalytical determination of metallic constituents of river sediments

1991 ◽  
Vol 340 (4) ◽  
pp. 223-229 ◽  
Author(s):  
E. Ruiz ◽  
A. Echeand�a ◽  
F. Romero
Keyword(s):  
River Sediments

APPLICATION OF PIXE TECHNIQUE TO DETERMINATION OF TRACE ELEMENTS IN DIET AND COMPARISON WITH NAA AND ICP-AES

1996 ◽  
Vol 06 (01n02) ◽  
pp. 395-403
Author(s):  
Masae Yukawa ◽  
Yoshito Watanabe ◽  
Yoshikazu Nishimura ◽  
Mieko Kimura
Keyword(s):  
Trace Elements ◽  
South America ◽  
Daily Intake ◽  
Radiation Doses ◽  
Internal Radiation ◽  
Pixe Analysis ◽  
Daily Dietary Intake ◽  
Elemental Concentrations ◽  
Total Diet

PIXE technique was applied to measurement of trace elements in total diet samples collected in Japan for estimation of their daily dietary intake. Results of PIXE analysis were compared with INAA Concentration of Cl, K, Mn and Zn by PIXE analysis well agreed with the results from NAA, while Ca, Fe and Cu showed different results between these two techniques. Preliminary data of elemental concentrations in Mate-cha, a kind of tea popular in South America, determined by ICP-AES indicated a little higher concentration of Cu than that by PIXE and much lower value than that by INAA For Zn. concentrations by PIXE and ICP well agreed to each other, while INAA gave much lower value. Japanese internal radiation doses by 137 Cs and 90 Sr were estimated to be 2.30µSv/year and 1.27µSv/year respectively as the effective dose equivalents using the daily intake data obtained for K and Ca.

scholarly journals Analysis of the 40K levels in soil using gamma spectrometry

2005 ◽  
Vol 48 (spe2) ◽  
pp. 221-228 ◽  
Author(s):  
José Araújo dos Santos Júnior ◽  
Jorge João Ricardo Ferreira Cardoso ◽  
Cleomacio Miguel da Silva ◽  
Suêldo Vita Silveira ◽  
Romilton dos Santos Amaral
Keyword(s):  
Gamma Spectrometry ◽  
Absorbed Dose ◽  
Soil Samples ◽  
Spectrometry Method ◽  
Dose Rates ◽  
Elemental Concentrations ◽  
High Purity Germanium ◽  
Specific Activities ◽  
Potassium 40

Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.

Heavy Metals Fractionation in Ganga River Sediments, India

2007 ◽  
Vol 132 (1-3) ◽  
pp. 475-489 ◽  
Author(s):  
P. Purushothaman ◽  
G. J. Chakrapani
Keyword(s):  
Heavy Metals ◽  
River Sediments ◽  
Ganga River

Determination of plutonium traces in some German river sediments

1993 ◽  
Vol 28 (2) ◽  
pp. 159-165 ◽  
Author(s):  
H. Barth ◽  
M. Ganz ◽  
S. Heise ◽  
D. Molzahn ◽  
R. Brandt ◽  
...  
Keyword(s):  
River Sediments
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