A laser ablation resonance ionisation mass spectrometer (LA-RIMS) for the detection of isotope ratios of uranium at ultra-trace concentrations from solid particles and solutions

2019 ◽  
Vol 34 (8) ◽  
pp. 1630-1638 ◽  
Author(s):  
Ilya Strashnov ◽  
Igor Izosimov ◽  
Jamie D. Gilmour ◽  
Melissa Anne Denecke ◽  
Jose Almiral ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Mass Spectrometer ◽  
Tunable Laser ◽  
Isotope Ratios ◽  
Uranium Isotope ◽  
Solid Particles ◽  
Ultra Trace ◽  
Trace Concentrations ◽  
Ionisation Mass ◽  
Ionisation Mass Spectrometer

A commercial MALDI mass spectrometer coupled with a tunable laser ionisation system can be used for the detection of uranium isotope ratios at trace levels.

Improved detection sensitivity for heavy trace elements using a miniature laser ablation ionisation mass spectrometer

2017 ◽  
Vol 32 (11) ◽  
pp. 2182-2188 ◽  
Author(s):  
R. Wiesendanger ◽  
M. Tulej ◽  
A. Riedo ◽  
S. Frey ◽  
H. Shea ◽  
...  
Keyword(s):  
Trace Elements ◽  
Laser Ablation ◽  
Mass Spectrometer ◽  
Detection Sensitivity ◽  
Laser Spectrometer ◽  
Lunar Meteorite ◽  
Ionisation Mass ◽  
Ionisation Mass Spectrometer

Detecting heavy trace elements with a miniature laser spectrometer on a lunar meteorite.

scholarly journals Isotope ratios determination of uranium in soil samples affected due to Chernobyl accident using thermal ionisation mass spectrometer

2002 ◽  
Vol 37 (C1) ◽  
pp. C1-951-C1-955 ◽  
Author(s):  
S. K. Sahoo ◽  
K. Shiraishi ◽  
S. Kimura ◽  
A. Masuda ◽  
I. P. Los ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Chernobyl Accident ◽  
Isotope Ratios ◽  
Soil Samples ◽  
Ionisation Mass ◽  
Ionisation Mass Spectrometer

scholarly journals Accurate measurement of uranium isotope ratios in solid samples by laser ablation multi-collector inductively coupled plasma mass spectrometry

2018 ◽  
Vol 33 (6) ◽  
pp. 1076-1080 ◽  
Author(s):  
Z. Varga ◽  
M. Krachler ◽  
A. Nicholl ◽  
M. Ernstberger ◽  
T. Wiss ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Isotope Ratios ◽  
Uranium Isotope ◽  
Solid Samples ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

A multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) coupled to a 213 nm ns-laser was used to measure uranium isotope ratios (234U/238U, 235U/238U, and 236U/238U) in six solid nuclear certified reference materials (CRMs).

scholarly journals Airborne observations of formic acid using a chemical ionisation mass spectrometer

2011 ◽  
Vol 4 (5) ◽  
pp. 5807-5835 ◽  
Author(s):  
M. Le Breton ◽  
M. R. McGillen ◽  
J. B. A. Muller ◽  
A. Bacak ◽  
D. E. Shallcross ◽  
...  
Keyword(s):  
Formic Acid ◽  
Mass Spectrometer ◽  
Limit Of Detection ◽  
Lower Boundary ◽  
Standard Addition ◽  
Airborne Measurements ◽  
Mixing Ratios ◽  
Chemical Ionisation ◽  
Ionisation Mass ◽  
Ionisation Mass Spectrometer

Abstract. The first airborne measurements of formic acid mixing ratios over the United Kingdom were measured on the FAAM BAe-146 research aircraft on the 16 March 2010 with a chemical ionisation mass spectrometer using I− reagent ions. The I− ionisation scheme was able to measure formic acid mixing ratios at 1 Hz in the lower boundary layer. In-flight standard addition calibrations from a formic acid source were used to determine the instrument sensitivity of 35±6 ion counts pptv−1 s−1 and a limit of detection of 25 pptv. Routine measurements were made through a scrubbed inlet to determine the instrumental background. Three plumes of formic acid were observed over the UK, originating from London, Humberside and Tyneside. The London plume had the highest formic acid mixing ratio throughout the flight, peaking at 358 pptv. No significant correlations of formic acid with NOx and Ozone were found. A trajectory model was employed to determine the sources of the plumes and compare modelled mixing ratios with measured values. The model underestimated formic acid concentrations by up to a factor of 2. This is explained by missing sources in the model, considered to be primary emissions of formic acid of mainly anthropogenic origin and lack of precursor emissions, such as isoprene, from biogenic sources.

scholarly journals Airborne hydrogen cyanide measurements using a chemical ionisation mass spectrometer for the plume identification of biomass burning forest fires

2013 ◽  
Vol 13 (2) ◽  
pp. 5649-5685 ◽  
Author(s):  
M. Le Breton ◽  
A. Bacak ◽  
J. B. A. Muller ◽  
S. J. O'Shea ◽  
P. Xiao ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Biomass Burning ◽  
Forest Fires ◽  
Hydrogen Cyanide ◽  
Global Emission ◽  
Highly Sensitive ◽  
Research Aircraft ◽  
Chemical Ionisation ◽  
Ionisation Mass ◽  
Ionisation Mass Spectrometer

Abstract. A Chemical Ionisation Mass Spectrometer (CIMS) was developed for measuring hydrogen cyanide (HCN) from biomass burning events in Canada using I− reagent ions on board the FAAM BAe-146 research aircraft during the BORTAS campaign in 2011. The ionisation scheme enabled highly sensitive measurements at 1 Hz frequency through biomass burning plumes in the troposphere. A strong correlation between the HCN, carbon monoxide (CO) and acetonitrile (CH3CN) was observed, indicating the potential of HCN as a biomass burning (BB) marker. A plume was defined as being 6 standard deviations above background for the flights. This method was compared with a number of alternative plume defining techniques employing CO and CH3CN measurements. The 6 sigma technique produced the highest R2 values for correlations with CO. A Normalised Excess Mixing Ratio (NEMR) of 3.76 ± 0.022 pptv ppbv−1 was calculated which is within the range quoted in previous research (Hornbrook et al., 2011). The global tropospheric model STOCHEM-CRI incorporated both the observed ratio and extreme ratios derived from other studies to generate global emission totals of HCN via biomass burning. Using the ratio derived from this work the emission total for HCN from BB was 0.92 Tg (N) yr−1.

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