Knowledge Base

15 of 366
  • GD-MS
  • 6N
  • Copper
  • High Purity

Routine analysis of 6N high purity copper

Joachim Hinrichs

Thermo Fisher Scientific, Bremen, Germany


Goal: This note demonstrate the capability of the Element GD Plus MS for the routine analysis of ultra-trace impurities in high purity copper with minimum sample preparation.

  • GD-MS
  • Nickel Alloys
  • Pulsed

High precision nickel alloy analysis

Joachim Hinrichs

Thermo Fisher Scientific, Bremen, Germany


Goal: This note describes the superior performance of the Thermo Scientific Element GD Plus GD-MS for the analysis of Ni alloys in modulated mode, compared to the bulk analysis of conductive metals with continuous DC GD-MS.

  • GD-MS
  • Ceramics
  • Non-conductive
  • High Purity

Analysis of alumina powders

Joachim Hinrichs (1) and Karol Putyera (2) 

1) Thermo Fisher Scientific, Bremen, Germany; 2) Evans Analytical Group, Liverpool, NY, USA


Goal: This note demonstrate the capabilities of the Thermo Scientific Element GD Plus ?s-Fast-Flow Glow Discharge Mass Spectrometer for high throughput trace metal determination in high purity alumina powders with minimum sample preparation. 

  • IRIS
  • Delta Ray
  • Volcano Monitoring
  • Carbon and Oxygen Isotopes

The Trail by Fire expedition: A continent-scale transect of volcanic degassing

Yves Moussallam (1, 2)

1) French National Research Institute for Sustainable Development (IRD), Clermont-Ferrand, France; 2) Lamont-Doherty Earth Observatory, Columbia University, New York, USA


Goal: This case study reports about the Trial by Fire expedition and how the Thermo Scientific Delta Ray IRIS has been used to measure the isotope composition of CO2 emitted by the volcanoes along the trip.

  • IRMS
  • Flash 1110 Elemental Analyzer
  • CNS isotopes

Simultaneous ?15N, ?13C and ?34S measurements of low biomass samples using a technically advanced high sensitivity elemental analyzer connected to an isotope ratio mass spectrometer

T. Hansen, A. Burmeister and U. Sommer

Leibniz-Institute for Marine Sciences at Kiel University, Dusternbrooker Weg 20, 24105 Kiel, Germany

Rapid Communications in Mass Spectrometry (2009), V23, pp3387–3393, doi: 10.1002/rcm.4267

Goal: Conventional simultaneous CNS stable isotope abundance measurements of solid samples usually require high sample amounts, up to 1mg carbon, to achieve exact analytical results. This rarely used application is often impaired by high C:S element ratios when organic samples are analyzed and problems such as incomplete conversion into sulphur dioxide occur during analysis. We introduce, as a technical innovation, a high sensitivity elemental analyzer coupled to a conventional isotope ratio mass spectrometer, with which CNS-stable isotope ratios can be determined simultaneously in samples with low carbon content (<40mg C corresponding to ca. 100mg dry weight).

  • IRMS
  • Delta V Advantage
  • Flash 1112 HT
  • GC
  • 15N
  • Taurine

Determination of the natural abundance ?15N of taurine by gas chromatography–isotope ratio measurement mass spectrometry

Illa Tea*, Ingrid Antheaume, Jorick Besnard and Richard J. Robins

Elucidation of Biosynthesis by Isotopic Spectrometry Group, Unit for Interdisciplinary Chemistry: Synthesis-Analysis-Modelling University of Nantes–CNRS UMR6230, 2 rue de la Houssinie`re, BP 92208, F-44322 Nantes, France

Rapid Communications in Mass Spectrometry (2010), V24, pp3380–3386, doi: 10.1002/rcm.4784

Goal: The measurement of the nitrogen isotope ratio of taurine (2-aminoethanesulphonic acid) in biological samples has a large number of potential applications. Taurine is a small water-soluble molecule which is notoriously difficult to analyze due to its polarity and functionality. A method is described which allows the determination of the natural abundance d15N values of taurine and structural analogues, such as 3-amino-1-propanesulphonic acid (APSA), by isotope ratio mass spectrometry interfaced to gas chromatography (GC-irm-MS).

  • IRMS
  • HPLC
  • Carbon isotopes
  • Amino acids

A three-phase liquid chromatographic method for ?13C analysis of amino acids from biological protein hydrolysates using liquid chromatography–isotope ratio mass spectrometry

Colin I. Smith, Benjamin T. Fuller, Kyungcheol Choy, Michael P. Richards

Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig 04103, Germany

Analytical Biochemistry (2009), V390, pp165–172, doi: 10.1016/j.ab.2009.04.014

Goal: We report a three-phase chromatographic method for the separation and analysis of d13C values of underivatized amino acids from biological proteins (keratin, collagen, and casein) using liquid chromatography–

  • Nitrogen isotopes
  • Zooplankton

Environmental perturbation effects on baseline ?15N values and zooplankton trophic flexibility in the southern California Current Ecosystem

Moira Décima (1), Michael R. Landry (1) and Brian N. Popp (2)

1) Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California, 2) Department of Geology and Geophysics, University of Hawaii, Honolulu, Hawaii

Limnology and Oceanography (2013), V58(2), pp624–634 , doi: 10.4319/lo.2013.58.2.0624

Goal: Nitrogen isotopic compositions of zooplankton in the California Current Ecosystem (CCE) are known to vary over inter-annual scales of climate variability, but the extent to which those changes are driven by variations in baseline phytoplankton d15N values vs. zooplankton trophic position (TP) is poorly resolved. We use field samples collected during a large natural environmental perturbation, the 1998–1999 alternation between El Niño and La Niña states, to test the ability of large dominant CCE zooplankton Euphausia pacifica and Calanus pacificus to alter their TPs in response to environmental variability.

  • LC IsoLink™
  • Compound Specific Isotope Analysis
  • Honey
  • HPLC
  • Isotope Ratio MS
  • Sugar

irm-LC/MS: ?13C of Carbohydrates in Honey

Andreas W. Hilkert, Michael Krummen, Dieter Juchelka

Thermo Fisher Scientific, Bremen, Germany


Goal: Sugars are one of the biggest and most common families of molecules in life. They serve as energy resources, the backbone of DNA and RNA, the carrier of biologically active compounds and as structure building material of plants. Sugars can carry information of their origin and processing.

  • Element 2 XR
  • Neptune Plus
  • B isotopes
  • Foraminifera

Determination of ?11B by HR-ICP-MS from Mass Limited Samples: Application to Natural Carbonates and Water Samples

Sambuddha Misra (1), Robert Owen (1,2), Joanna Kerr (1), Mervyn Greaves (1) and Henry Elderfield (1)

1) University of Cambridge, Department of Earth Sciences, Godwin Laboratory for Paleoclimate Research, Downing Street, Cambridge CB2 3EQ, United Kingdom, 2) University of Oxford, Department of Earth Sciences, Oxford OX1 3PR, United Kingdom

Geochimica et Cosmochimica Acta (2014), V140, pp531-552, doi: 10.1016/j.gca.2014.05.047

Goal: We present an improved method for accurate and precise determination of the boron isotopic composition (11B/10B) of carbonate and water samples using a mineral acid matrix and HR-ICP-MS. Our method for ?11B determination utilizes a micro-distillation based boron purification technique for both carbonate and seawater matrices.

  • IRMS
  • Delta V
  • EA-IsoLink
  • Isotope Fingerprint
  • Cocaine

EA-IRMS: Tracing the geographical origin of cocaine

Christopher Brodie

Thermo Fisher Scientific, Bremen, Germany


Goal: This note illustrates how isotope fingerprints can help trace cocaine production regions through analysis of coca leaves and cocaine samples

  • IRMS
  • Delta V
  • GC-IsoLink II
  • Isotope Fingerprints
  • Drug Abuse

GC-IRMS: Combat emerging threats in drug abuse with isotope fingerprints

Mario Tuthorn and Dieter Juchelka

Thermo Fisher Scientific, Bremen, Germany


Goal: This note shows how the use of isotope fingerprints of labeled metabolites and their corresponding structural information accelerates the discovery of new metabolites

  • Neptune
  • Li Isotopes
  • laser Ablation

Improved in-situ ?7Li analysis of synthetic glass by LA-MC-ICP-MS with 10^13 ? amplifiers

Grant Craig, Hauke Vollstaedt, Nicholas Lloyd, Claudia Bouman and Johannes Schwieters

Thermo Fisher Scientific, Bremen, Germany


Goal: The application of Thermo Scientific™ 10^13 Amplifier Technology™ to lithium isotope ratio analysis by LA-MC-ICP-MS is demonstrated to improve precision at typical lithium concentrations for geological materials.

  • TIMS
  • Triton Plus
  • 10^13 ohm amplifier technology

Smart Note: 10^13 ? amplifier technology: How low can you go?

Hauke Vollstaedt, Grant Craig, Nicholas Lloyd, Johannes Schwieters and Claudia Bouman

Thermo Fisher Scientific, Bremen, Germany


Goal: Faraday cups connected to Thermo Scientific™ 10^13 ? amplifier technology overcome the limitations of sequential single collector measurements by enabling low noise 100% duty cycle static multicollector measurements of low intensity ion beams.

  • IRIS
  • Delta Ray
  • Greenhouse Gases
  • CO2
  • Carbon and Oxygen Isotopes

Chasing greenhouse gases at our doorstep – isotopes as tool to identify urban CO2 sources: A wintertime field study in the heart of the Paris megacity 

Felix Vogel (1), Irene Xueref-Remy (1), Mathieu Sebilo (2), HJ Jost (3) and Magda Mandic (3)

1) LSCE, UVSQ, University Paris-Saclay, 2) Pierre and Marie Curie University, Paris, 3) Thermo Fisher Scientific, Bremen, Germany


Goal: This note describes how the impact of different CO2 sources in Paris can be quantified using continuous measurements of CO2 and its isotopologues: O13CO and 18OCO.