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环境科学
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Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx
JoVE 杂志
环境科学
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JoVE 杂志 环境科学
Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx

Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx

DOI:
10.3791/54962-v

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07:14 min

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December 20, 2016

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, , , ,
1Department of Chemistry,Brown University, 2Institute at Brown for Environment and Society,Brown University, 3Department of Earth, Environmental, and Planetary Sciences,Brown University

Chapters

  • 00:05Title
  • 01:07Solution Preparation and Field Setup
  • 02:17Sample Collection
  • 03:05Sample Reduction and Neutralization
  • 04:09Nitrogen Isotope Determination with the Denitrifier Method
  • 05:11Results: High Collection Efficiency for Nitrogen isotopic Analysis of NOx
  • 06:24Conclusion

Summary

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Previous work suggests that the nitrogen isotopic composition of atmospheric nitrogen oxides might distinguish the influence of different sources in the environment. We report on an automated, mobile, field-based method for the high collection efficiency of atmospheric NOx for N isotopic analysis at an hourly time resolution.

Tags

Nitrogen Isotopic AnalysisNOxAutomated Collection SystemAtmospheric ChemistryEnvironmental ChemistryField DeploymentPotassium PermanganateSodium HydroxidePTFE TubingChemiluminescence NOx Concentration AnalyzerField BlanksSyringe Pump

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