Technical Note: Evaluation of between-sample memory effects in the analysis of 2H and 18O of water samples measured by laser spectroscopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00196762" target="_blank" >RIV/68407700:21110/12:00196762 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/12:00000349

Výsledek na webu

<a href="http://www.hydrol-earth-syst-sci.net/16/3925/2012/hess-16-3925-2012.html" target="_blank" >http://www.hydrol-earth-syst-sci.net/16/3925/2012/hess-16-3925-2012.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/hess-16-3925-2012" target="_blank" >10.5194/hess-16-3925-2012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Technical Note: Evaluation of between-sample memory effects in the analysis of 2H and 18O of water samples measured by laser spectroscopes

Popis výsledku v původním jazyce

This study evaluated between-sample memory in isotopic measurements of 2H and 18O in water samples by laser spectroscopy. Ten isotopically depleted water samples spanning a broad range of oxygen and hydrogen isotopic compositions were measured by three generations of offaxis integrated cavity output spectroscopy and cavity ringdown spectroscopy instruments. The analysis procedure encompassed small (less than 2permille for 2H and 1permille for 18O) and large (up to 201permille for 2H and 25permille for 18O) differences in isotopic compositions between adjacent sample vials. Samples were injected 18 times each, and the betweensample memory effect was quantified for each analysis run. Results showed that samples adversely affected by betweensample isotopic differences stabilised after seven-eight injections. The between-sample memory effect ranged from 14% and 9% for 2H and 18O measurements, respectively, but declined to negligible carryover (between 0.1% and 0.3% for both isotopes) when

Název v anglickém jazyce

Technical Note: Evaluation of between-sample memory effects in the analysis of 2H and 18O of water samples measured by laser spectroscopes

Popis výsledku anglicky

This study evaluated between-sample memory in isotopic measurements of 2H and 18O in water samples by laser spectroscopy. Ten isotopically depleted water samples spanning a broad range of oxygen and hydrogen isotopic compositions were measured by three generations of offaxis integrated cavity output spectroscopy and cavity ringdown spectroscopy instruments. The analysis procedure encompassed small (less than 2permille for 2H and 1permille for 18O) and large (up to 201permille for 2H and 25permille for 18O) differences in isotopic compositions between adjacent sample vials. Samples were injected 18 times each, and the betweensample memory effect was quantified for each analysis run. Results showed that samples adversely affected by betweensample isotopic differences stabilised after seven-eight injections. The between-sample memory effect ranged from 14% and 9% for 2H and 18O measurements, respectively, but declined to negligible carryover (between 0.1% and 0.3% for both isotopes) when

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrology and Earth System Sciences

ISSN

1027-5606

e-ISSN

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Svazek periodika

16

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

3925-3933

Kód UT WoS článku

000310474300029

EID výsledku v databázi Scopus

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