scholarly journals Accelerator Mass Spectrometry with Fully Stripped 36Cl Ions

Radiocarbon ◽  
1986 ◽  
Vol 28 (2A) ◽  
pp. 204-210 ◽  
Author(s):  
Günther Haberstock ◽  
Johann Heinzl ◽  
Gunther Korschinek ◽  
Haruhiko Morinaga ◽  
Eckehart Nolte ◽  
...  

A description of accelerator mass spectrometry (AMS) measurements with the long-lived radioisotope 36Cl is given. All measurements were made at the Munich tandem accelerator laboratory. Results are presented for 36Cl measurements in ground waters, in the meteorite Bjurböle, in ice-core samples of the Vernagtferner, Austria, and in granite samples from Hiroshima, Japan, irradiated by the atomic bomb explosion in 1945.

2013 ◽  
Vol 59 (216) ◽  
pp. 599-612 ◽  
Author(s):  
Ping Yao ◽  
Valérie F. Schwab ◽  
Vanessa-Nina Roth ◽  
Baiqing Xu ◽  
Tandong Yao ◽  
...  

AbstractLevoglucosan is a unique marker for biomass burning that can be transported in the atmosphere and preserved in archives such as ice cores. A new method to determine the concentrations of levoglucosan in Tibetan ice-core samples using high-performance liquid chromatography with electrospray ionization mass spectrometry (HPLC-ESI/MS) was developed. Levoglucosan was separated from coeluting water-soluble organic compounds using a C18 column with a gradient program from 50% to 90% methanol in ultrapure water. An external standard calibration curve (R2 = 0.9958) was established by plotting the ion m/z 163 [M+H]+ peak area versus the amount of analyte. The repeatability ranges between 11% and 2% at a concentration around 10 and 150 ng mL−1. The limit of detection was 10 ng mL−1 and the limit of quantification was 40 ng mL−1. Levoglucosan concentrations ranged from 10 to 718 ng mL−1 in the Muztagh Ata ice core and from 10 to 93 ng mL−1 in the Tanggula ice core. These concentrations, up to 1000 times higher than those measured in samples from Antarctic and Greenland, showed the higher vulnerability of the Tibetan Plateau glaciers to biomass burning events.


Nature ◽  
1983 ◽  
Vol 305 (5935) ◽  
pp. 611-612 ◽  
Author(s):  
K. Nishiizumi ◽  
D. Elmore ◽  
M. Honda ◽  
J. R. Arnold ◽  
H. E. Gove

Radiocarbon ◽  
1986 ◽  
Vol 28 (2A) ◽  
pp. 417-423 ◽  
Author(s):  
Michael Andree ◽  
Juerg Beer ◽  
H P Loetscher ◽  
Ernst Moor ◽  
Hans Oeschger ◽  
...  

Results of 14C/12C ratio measurements on CO2 extracted from air bubbles in polar ice are presented. The samples investigated originate from the Dye 3, South Greenland, deep ice core and span approximately the last 10,000 years. The results are calibrated with tree-ring records. The 14C ages are compared with information obtained from seasonal variations of ice-core parameters and rheologic model calculation.


1980 ◽  
Vol 45 (8) ◽  
pp. 589-592 ◽  
Author(s):  
D. Elmore ◽  
N. Anantaraman ◽  
H. W. Fulbright ◽  
H. E. Gove ◽  
H. S. Hans ◽  
...  

Pramana ◽  
2002 ◽  
Vol 59 (6) ◽  
pp. 1041-1051 ◽  
Author(s):  
Christof Vockenhuber ◽  
Robin Golser ◽  
Walter Kutschera ◽  
Alfred Priller ◽  
Peter Steier ◽  
...  

Nature ◽  
1986 ◽  
Vol 319 (6054) ◽  
pp. 568-570 ◽  
Author(s):  
P. W. Kubik ◽  
D. Elmore ◽  
N. J. Conard ◽  
K. Nishiizumi ◽  
J. R. Arnold

Nature ◽  
1980 ◽  
Vol 286 (5769) ◽  
pp. 138-140 ◽  
Author(s):  
D. Elmore ◽  
H. E. Gove ◽  
R. Ferraro ◽  
L. R. Kilius ◽  
H. W. Lee ◽  
...  

2000 ◽  
Vol 79 (4) ◽  
pp. 358-364 ◽  
Author(s):  
W. Rühm ◽  
K. Knie ◽  
G. Rugel ◽  
A. A. Marchetti ◽  
T. Faestermann ◽  
...  

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