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

Techniques and Methods 5-D4

By:
https://doi.org/10.3133/tm5D4

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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