Measurement of extremely 2 H-enriched water samples by laser spectrometry: application to batch electrolytic concentration of environmental tritium samples
| Autor: | Dagnachew Legesse Belachew, B. Kumar, Leonard I. Wassenaar, Pradeep K. Aggarwal, Cedric Douence |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Electrolysis
Laser spectrometry Chromatography Stable isotope ratio Chemistry Sample (material) 010401 analytical chemistry Organic Chemistry 010501 environmental sciences Mass spectrometry 01 natural sciences 0104 chemical sciences Analytical Chemistry law.invention Deuterium law TRACER Tritium Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Rapid Communications in Mass Spectrometry. 30:415-422 |
| ISSN: | 0951-4198 |
| DOI: | 10.1002/rcm.7459 |
| Popis: | RATIONALE Natural water samples artificially or experimentally enriched in deuterium ((2) H) at concentrations up to 10,000 ppm are required for various medical, environmental and hydrological tracer applications, but are difficult to measure using conventional stable isotope ratio mass spectrometry. METHODS Here we demonstrate that off-axis integrated cavity output (OA-ICOS) laser spectrometry, along with (2) H-enriched laboratory calibration standards and appropriate analysis templates, allows for low-cost, fast, and accurate determinations of water samples having δ(2) HVSMOW-SLAP values up to at least 57,000 ‰ (~9000 ppm) at a processing rate of 60 samples per day. RESULTS As one practical application, extremely (2) H-enriched samples were measured by laser spectrometry and compared to the traditional (3) H Spike-Proxy method in order to determine tritium enrichment factors in the batch electrolysis of environmental waters. Highly (2) H-enriched samples were taken from different sets of electrolytically concentrated standards and low-level ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text