Determination of Wyttenbach correction factors in neutron activation system dedicated to trace element analysis of geological samples

1988 ◽  
Vol 122 (1) ◽  
pp. 103-113 ◽  
Author(s):  
P. Ila
Keyword(s):  
Neutron Activation ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Correction Factors ◽  
Geological Samples ◽  
Element Analysis ◽  
Activation System

Gradient centrifugation to isolate platelets for determination of trace elements by neutron-activation analysis

1990 ◽  
Vol 36 (11) ◽  
pp. 1902-1905 ◽  
Author(s):  
K Bibow ◽  
H H Mundal
Keyword(s):  
Trace Elements ◽  
Neutron Activation ◽  
Trace Element ◽  
Density Gradient ◽  
Gradient Centrifugation ◽  
Trace Element Analysis ◽  
Element Analysis ◽  
Gradient Separation ◽  
Density Gradient Separation

Abstract A nonionic iodinated compound, Nycodenz, was used for density-gradient isolation of platelets before analysis for trace elements by instrumental neutron activation. The platelet samples were almost free from plasma and erythrocytes, and the trace element contribution from additives was insignificant for the elements investigated. The reproducibility of the trace element analysis in platelets attests to the usefulness of density-gradient separation. Platelet samples were obtained twice, three weeks apart, from 10 healthy young women (ages 24 +/- 2 years). The mean (SD) concentrations were as follows: Se, 0.62 (0.16) mg/L and 4.7 (1.4) ng/10(9) platelets; Zn, 44 (10) mg/L and 333 (80) ng/10(9) platelets; Rb, 3.0 (0.5) mg/L and 23 (5) ng/10(9) platelets; and Cs, 24 (5) micrograms/L and 0.18 (0.04) ng/10(9) platelets.

Application of chelating ion exchange resins for trace element analysis of geological samples using x-ray fluorescence

1973 ◽  
Vol 45 (7) ◽  
pp. 1045-1050 ◽  
Author(s):  
C. W. Blount ◽  
D. E. Leyden ◽  
T. L. Thomas ◽  
S. M. Guill
Keyword(s):  
Ion Exchange ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Ion Exchange Resins ◽  
Geological Samples ◽  
Element Analysis ◽  
X Ray ◽  
Exchange Resins

Trace Element Analysis of Hydrochloric Acid by Neutron Activation

1977 ◽  
Vol 24 (4) ◽  
pp. 143-145 ◽  
Author(s):  
Si-Jung Yeh ◽  
Ping-Yao Chen ◽  
Shigeo Tanaka
Keyword(s):  
Hydrochloric Acid ◽  
Neutron Activation ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Element Analysis

On trace element analysis of geological samples by X-ray fluorescence

1976 ◽  
Vol 5 (2) ◽  
pp. 56-60 ◽  
Author(s):  
W. B. Stern
Keyword(s):  
Trace Element ◽  
Trace Element Analysis ◽  
Geological Samples ◽  
Element Analysis ◽  
X Ray
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