Determination of δ13C, δ15N, or δ34S by isotope-ratio-monitoring mass spectrometry using an elemental analyzer

Techniques and Methods 5-D4
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Abstract

This report describes procedures used in the Geology, Geophysics, and Geochemistry Science Center of the U.S. Geological Survey in Denver, Colorado, to determine the stable-isotope ratios 13C/12C, 15N/14N, and 34S/32S in solid materials. The procedures use elemental analyzers connected directly to gas-source isotope-ratio mass spectrometers. A different elemental–analyzer–mass-spectrometer system is used for 13C/12C and 15N/14N than is used for 34S/32S to accommodate differences in reagents, catalysts, and instrument settings.

Suggested Citation

Johnson, C.A., Stricker, C.A., Gulbransen, C.A., and Emmons, M.P., 2018, Determination of δ13C, δ15N, or δ34S by isotope-ratio-monitoring mass spectrometry using an elemental analyzer: U.S. Geological Survey Techniques and Methods, book 5, chap. D4, 19 p., https://doi.org/10.3133/tm5D4.

ISSN: 2328-7055 (online)

Table of Contents

  • Abstract
  • Method Summary
  • Reporting Units and Operational Range
  • Supplies, Instrumentation, and Reagents
  • Sample Containers, Preparation, and Analysis
  • Data Acquisition, Evaluation, Processing, Quality Control, and Quality Assurance
  • Data Management and Records
  • Safety Precautions
  • Waste Disposal
  • Revision History
  • References Cited
  • Appendix 1. Precipitation of Aqueous Sulfate as Barium Sulfate (BaSO4) for Determination of δ34S
  • Appendix 2. Removal of Carbonate Carbon from Sedimentary Rocks Prior to Determination of δ13C of Total Organic Carbon
  • Appendix 3. Removal of Carbonate Carbon from Soils Prior to Determination of δ13C of Total Organic Carbon
  • Appendix 4. Extraction of Acid-Volatile Sulfur and Chromium-Reducible Sulfur from Sediments and Sedimentary Rocks for Determination of δ34S
  • Appendix 5. Procedure for Cleaning Feathers, Fur, and Hair Prior to Determination of δ13C, δ15N, or δ34S

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Determination of δ13C, δ15N, or δ34S by isotope-ratio-monitoring mass spectrometry using an elemental analyzer
Series title Techniques and Methods
Series number 5-D4
DOI 10.3133/tm5D4
Year Published 2018
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Geology, Geophysics, and Geochemistry Science Center
Description vi, 20 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title Section D: Geologic analysis in Book 5: Laboratory analysis
Public Comments This report is Chapter 4 of Section D: Geologic analysis in Book 5: Laboratory analysis.
Online Only (Y/N) Y