Knowledge Base

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  • MC-ICP-MS
  • Neptune Plus
  • Nd
  • ESI microFAST MC apex Ω
  • small samples

High-throughput High-precision Nd Isotope Ratios from Small Samples Using Syringe Based Flow Injection for MC-ICP-MS

Nicholas S. Lloyd (1), Paul Watson (2) and M. Paul Field (2)

1) Thermo Fisher Scientific, Bremen, Germany, 2) Elemental Scientific Inc., Omaha, Nebraska, USA

Poster Note 30358

Goal: This poster note evaluate the combination of the Neptune Plus MC-ICPMS with Elemental Scientific microFAST MC apex Ω sample introduction system for rapid determination of 143Nd/144Nd from small Nd sample amounts.

View9
  • IRMS
  • 253 Plus
  • LIDI Software
  • Clumped Isotopes
  • CO2
  • Calcite

253 Plus 10kV IRMS - New 10kV Isotope Ratio Mass Spectrometer: Robust Precision and Accuracy for Low Abundance Isotope research

J. Radke (1), A. Behrens (2), S.M. Bernasconi (2), A. Fernandez (2), I.A. Müller (2), A. Hilkert (1) and J. Schwieters (1)

1) Thermo Fisher Scientific, Bremen, Germany, 2) ETH Zürich, Switzerland

Poster Note 30360

Goal: This poster note describes the use of the 253 Plus 10 kV IRMS technology in combination with the 1013 ohm amplifier technology and LIDI software control to evaluate the one degree Celsius boundary, e.g. clumped CO2 isotope research.

View12
  • Relative Abundances of Isotopes
  • MC-ICPMS
  • Neptune Plus
  • TIMS
  • Triton Plus
  • HR-ICPMS
  • Element 2
  • Element XR
  •  

Cup Configurations and Relative Abundances of Isotopes

Thermo Fisher Scientific, Bremen, Germany

PN1991130

View5
  • Laser Ablation
  • ICPMS
  • Triple LASS
  • U-Pb
  • Hf
  • REE

Laser Ablation Split Stream (LASS) Between Three Inductively Coupled Plasma Mass Spectrometers for Zircon Petrochronology

G. Craig (1), D. A. Frick (2), C. Bouman (1), N. Lloyd (1) and J. B. Schwieters (1)

1) Thermo Fisher Scientific, Bremen, Germany, 2) Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany

Goal: This poster describes how LASS was achieved using disposable membrane pumps. Hf, U-Pb and rare earth element (REE) data were measured simultaneously by multicollector (MC), sector field (SF), and quadrupole (Q) ICP-MS respectively.

View2
  • MC-ICPMS
  • Neptune Plus
  • Isotope ratios
  • Osmium
  • Multiple Ion Counting 

Low level Os isotopic measurements using multiple ion counting

Jean Louis Birck (1), Delphine Limmois (1), Lionnel Mounier (1), Nicholas Lloyd (2) and Johannes B. Schwieters (2)

1) Institut de Physique du Globe de Paris, Sorbonne Paris Cité, France, 2) Thermo Fisher Scientific, Germany

AN30355

Goal: The purpose of this note is to extend the low level Os isotopic measurements to multicollector ICP-MS instrumentation.

View0
  • HR-ICPMS
  • Element XR
  • Gas Chromatography
  • GCI200
  • Speciation
  • Tin

High sensitivity tin speciation using a new GC interface with Sector Field High Resolution ICP-MS

Torsten Lindemann, Antonella Guzzonato and Shona McSheehy Ducos

Thermo Fisher Scientific, Bremen, Germany

Poster 43431

Goal: This poster evaluates the performance of a new interface between Sector Field Inductively Coupled Plasma Mass Spectrometry (SF ICP-MS) and Gas Chromatography (GC) for tin speciation.

View1
  • MC-ICP-MS
  • Neptune Plus
  • Gas Chromatography
  • GCI300
  • Speciation
  • Sulfur
  • Isotope Ratios
  • Crude Oil

Application of a new interface to the δ34S speciation analysis of volatile organic compounds in crude oil by GC-MC-ICP-MS

Grant Craig, Antonella Guzzonato, Christopher Brodie, Shona McSheehy-Ducos and Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

Poster 30401

Goal: The performance of a new GC-MC-ICP-MS coupling interface, the GCI 300 Interface, between the Trace 1310 GC and Neptune Plus MC-ICP-MS has been demonstrated by δ34S speciation analysis of four crude oil samples.

View1
  • MC-ICP-MS
  • Neptune Plus
  • Gas Chromatography
  • GCI300
  • Speciation
  • Sulfur
  • Isotope Ratios
  • Crude Oil

Speciation and δ34S analysis of volatile organic compounds in crude oil by GC-MC-ICP-MS using the Thermo Scientific GCI 300 Interface

Grant Craig, Antonella Guzzonato, Christopher Brodie, Shona McSheehy Ducos and Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany

TN30383

Goal: This note demonstrates the utility of the Neptune Plus Multicollector ICP-MS, when coupled with the Trace 1310 GC via the GCI300 Interface, for isotopic sulfur analysis of individual compounds within a series of crude oil samples.

View4
  • IRMS
  • MAT 252
  • Dual Inlet
  • Ar isotopes
  • Ice

A method for precise measurement of argon 40/36 and krypton/argon ratios in trapped air in polar ice with applications to past firn thickness and abrupt climate change in Greenland and at Siple Dome, Antarctica

Jeffrey P. Severinghaus1 (1), Alexi Grachev (1), Boaz Luz (2) and Nicolas Caillon (3)

1) Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093, USA, 2) The Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, 3) IPSL Laboratoire des Sciences du Climat et de l’Environnement, UMR CEA-CNRS 1572, CEA Saclay, 91191 Gif-sur-Yvette, France

Geochimica et Cosmochimica Acta (2003), V67 (3), pp. 325–343, doi: 10.1016/S0016-7037(02)00965-1

Goal: We describe a method for measuring the 40Ar/36Ar ratio and the 84Kr/36Ar ratio in air from bubbles trapped in ice cores. These ratios can provide constraints on the past thickness of the firn layer at the ice core site and on the magnitude of past rapid temperature variations when combined with measured 15N/14N. Both variables contribute to paleoclimatic studies and ultimately to the understanding of the controls on Earth’s climate.

View1
  • IRMS
  • MAT 253
  • TC/EA
  • Hydrogen isotopes
  • Geological Samples

An online method combining a thermal conversion elemental analyzer with isotope ratio mass spectrometry for the determination of hydrogen isotope composition and water concentration in geological samples

Bing Gong, Yong-Fei Zheng and Ren-Xu Chen

1) CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China

Rapid Communications in Mass Spectrometry (2007), V21, pp1386–1392, doi: 10.1002/rcm.2973

Goal: An online continuous-flow method, combining a thermal conversion elemental analyzer (TC/EA) with isotope ratio mass spectrometry (MS), is evaluated for the determination of both the hydrogen isotope composition and the water concentration of hydrous and nominally anhydrous minerals. The technique involves reduction of hydrous minerals or nominally anhydrous minerals by reaction with glassy carbon at 1450-C in a helium stream.

View1
  • IRMS
  • Delta Plus XP
  • TC/EA
  • Explosives
  • 13C, 15N, 18O

Investigation of isotopic linkage between precursor and product in the synthesis of a high explosive

Claire M. Lock (1) and Wolfram Meier-Augenstein (2)

1) Forensic Explosives Laboratory, Dstl, Fort Halstead, Sevenoaks, Kent TN14 7BP, UK, 2) Stable Isotope Forensics Facility, Environ. Eng. Res. Centre, S.P.A.C.E., Queen’s University Belfast, David Keir Building, Belfast BT9 5AG, UK

Forensic Science International (2008), V179, pp157–162, doi:10.1016/j.forsciint.2008.05.015

Goal: In criminal proceedings involving illegally manufactured substances, evidence demonstrating the manufacture is required for successful prosecution. In many circumstances the presence of manufacturing equipment and ‘recipes’ are clear indicators. However establishing chemical links between starting materials and products would be beneficial additional evidence in such circumstances. We report here the results of an isotope study investigating a link between hexamine used as a starting material and the product explosive RDX, manufactured using the Woolwich process. Isotopic composition of hexamine and RDX was analysed by stable isotope ratio mass spectrometry. Five different hexamine samples were selected from a group of eleven for use in this study. One of the five hexamine samples was used twice, providing data on the reproducibility of the synthesis. Carbon and nitrogen isotope analysis of the hexamine starting material and RDX products reveals a reproducible relationship between reactant and product.

View2
  • IRMS
  • Delta V Advantage
  • Elemental Analyzer
  • Fipronil
  • Authenticity
  • 13C, 15N, 34S

Isotopic Fingerprinting for the Authenticity Control of Crop Protection Active Compounds using the Representative Insecticide Fipronil

Philipp Weller (1), Markus Boner (2), Hilmar Foerstel (2), Horst Becker (1), Benjamin Peikert (1) and Wolfgang Dreher (1)

1) BASF SE, Agricultural Solutions, APE/MB, Speyerer Strasse 2, 67117 Limburgerhof, Germany, 2) TÜV Rheinland Agroisolab GmbH, TÜV Rheinland-Gruppe, Germany

Journal of Agricultural and Food Chemistry (2011), V59 (9), pp 4365–4370, doi:

Goal: Isotopic fingerprinting was evaluated for its potential to generate characteristic fingerprints of crop protection products in an extensive survey, using the insecticide Fipronil. One hundred and twenty batches of Fipronil from the BASFproduction site in France were analyzed for the isotope ratios of δ13C, δ15N, and δ34S. Samples spanned a production time of four years and were analyzed by elemental analysis, coupled to isotope ratio mass spectrometry (EA/IRMS). A number of Fipronil samples from other sources were analyzed in the same manner and were compared to the samples from BASF by means of multivariate data analysis. The isotopic fingerprint was sufficiently specific to differentiate between Fipronil from BASF production and Fipronil from other producers. This suggests that isotopic fingerprinting is suitable for the authenticity control of active compounds in crop protection products. It is anticipated that this technique will deliver great benefit in the defense against counterfeits and illegal parallel imports.

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  • IRMS
  • Delta Plus XP
  • Hair
  • 2H and 18O

Stable 2H isotope analysis of modern-day human hair and nails can aid forensic human identification

Isla Fraser and Wolfram Meier-Augenstein

Environmental Forensics and Human Health Lab., Environmental Engineering Research Centre, Queen’s University Belfast, Belfast BT9 5AG, UK

Rapid Communications in Mass Spectrometry (2007), V21, pp3279–3285, doi: 10.1002/rcm.3209

Goal: Continuous-flow isotope ratio mass spectrometry (CF-IRMS) was used to compare 2H isotopic composition at natural abundance level of human scalp hair and fingernail samples collected from subjects worldwide with interpolated d2H precipitation values at corresponding locations. The results showed a strong correlation between d2H values of meteoric water a nd hair (r2 = 0.86), while the corresponding correlation for nails was not as strong (r2 = 0.6). Offsets of -180 permil and -127 permil were observed when calculating solutions of the linear regression analyses for d2H vs. d18O correlation plots of hair and nail samples, respectively. Compared with the +10 permil offset of the global meteoric water line equation these findings suggested that d18O data from hair and nail would be of limited diagnostic value. The results of this pilot study provide for the first time tentative correlations of 2H isotopic composition of human hair and nails with local water.

View1
  • IRMS
  • Delta Plus XP
  • Flash 1112
  • Olive Oil
  • 2H/1H, 18O/16O and 13C/12C
  • Climate

Coast and year effect on H, O and C stable isotope ratios of Tyrrhenian and Adriatic italian olive oils

L. Bontempo (1), F. Camin (1), R. Larcher (1), G. Nicolini (1), M. Perini (1) and A. Rossmann (2)

1) Edmund Mach Foundation, IASMA Research Center, Agrifood Quality Department, via E. Mach, 38010 San Michele all’Adige (TN), Italy, 2) Isolab GmbH, Laboratorium für Stabile Isotope, Woelkestrasse 9/I, 85301 Schweitenkirchen, Germany

Rapid Communications in Mass Spectrometry (2009), V23, pp1043–1048, doi: 10.1002/rcm.3968

Goal: The paper discusses the 2H/1H, 18O/16O and 13C/12C ratios of 196 authentic Italian extra-virgin olive oils produced in 3 years on the Tyrrhenian and Adriatic coasts. The 2H/1H and 18O/16O ratios were linearly and positively correlated. The year of production influenced mainly 18O/16O in relation to the amount of rainfall and the atmospheric humidity in the period of oil accumulation in the olives. The 2H/1H ratio significantly distinguished the olive oils produced on the Adriatic coast from those on the Tyrrhenian coast in each year. This coast effect is a consequence of the different sources and isotopic compositions of the rainfall and the different climatic conditions on the two coasts. The paper contributes towards understanding the influence of climatic factors on isotopic variability and towards improving the traceability of the geographical origin of olive oils, using 2H/1H as a more innovative parameter.

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  • IRMS
  • Flash 1112
  • Honey Adulteration
  • 13C/12C

13C/12C pattern of honey from Turkey and determination of adulteration in commercially available honey samples using EA-IRMS

Adnan Simsek, Mine Bilsel and Ahmet C. Goren

TÜBITAK UME, National Metrology Institute, Chemistry Group Laboratories, P.O. Box 54, 41470 Gebze-Kocaeli, Turkey

Food Chemistry (2012), V130, pp1115–1121, doi:10.1016/j.foodchem.2011.08.017

Goal: Honey adulteration particularly by adding cheap sugars such as High Fructose Corn Syrup (HFCS) and cane sugar syrup into natural honey is widespread. This study reports (13C/12C,‰) patterns of 31 authentic honey samples obtained from different sources and regions of Turkey as well as 43 commercial honey samples to determine the adulteration using mass spectrometer coupled to elemental analyzer (EAIRMS). The analyses indicated that the ranges of (13C/12C,‰) values of honey and protein fractions of Turkish honey are from 23.30 to 27.58‰ and 24.13 to 26.76‰, respectively. These values for commercial honey samples were determined to range from 11.28 to 25.54‰ and 19.35 to 25.61‰, respectively. The numbers of adulterated commercial honey samples were found to be 10, which corresponds to 23% of the total number of the samples. Diastase activity, HMF content, electrical conductivity and moisture content of honey samples were also determined. Method validation and uncertainty budget calculations were also reported.