Results 31 to 40 of about 154,472 (297)

A New Method for Silicon Triple Isotope Analysis With Application to Siliceous Sponge Spicules

Geochemistry, Geophysics, Geosystems, 2023
Multiple isotope ratios of elements disclose information on the fractionation mechanism that cannot be obtained from a single isotope ratio alone.
Andreas Pack, Eike‐Matthias Bultmann, Michael Tatzel, Joachim Reitner   +3 more
doaj   +1 more source

No influence of CO2 on stable isotope analyses of soil waters with OA-ICOS [PDF]

, 2017
Acknowledgements We are thankful for the support by Audrey Innes with the stable isotope, LOI, and GWC analysis. We thank Jonathan Dick for suggesting that we use sparkling water to generate different CO2 concentrations in the headspace and Claire ...
Allison, Baer, Bertrand, Beyer, Brand, Crosson, Curiel Yuste, Dansgaard, Fang, Garvelmann, Gat, Geris, Gralher, Hendry, Johnson, Klaus, Mueller, Orlowski, Paul, Preston, Rothfuss, Sprenger, Sprenger, Sprenger, Sprenger, Tetzlaff, Volkmann, Wassenaar, West, Zhao   +29 more
core   +1 more source

Application of Carbon Stable Isotope Ratio Mass Spectrometry in Authenticity of “Zero-Added-Glutamate” Soy Sauces

eFood, 2021
The zero-added exogenous monosodium glutamate (MSG) soy sauce market is developing rapidly, but its authenticity remains a challenge for the industry. In this study, carbon stable isotope ratio mass spectrometry was utilized to determine 13C/12C ratio ...
Jianbo Xiao, Mingfu Wang, Jian-Lin Wu
doaj   +1 more source

Sex-specific energy expenditure during the Alaska mountain wilderness ski classic; insights from an Arctic winter expedition

Frontiers in Physiology
PurposeThe Alaska Mountain Wilderness Ski Classic (AMWSC) is a self-supported and self-oriented winter expedition that occurs in the remote North American Brooks Range, ∼200 km north of the Arctic Circle.
Melynda S. Coker, Michelle N. Ravelli, Timothy C. Shriver, Dale A. Schoeller, Dustin R. Slivka, Brent C. Ruby, Robert H. Coker   +6 more
doaj   +1 more source

Stable isotope analysis of human hair and nail samples: the effects of storage on samples [PDF]

, 2008
When submitting samples for analysis, maintaining sample integrity is essential. Appropriate packaging must be used to prevent damage, contamination or loss of sample.
Fraser, Isla, Kalin, Robert M., Meier-Augenstein, Wolfram   +2 more
core   +1 more source

Probing rapid carbon fixation in fast-growing seaweed Ulva meridionalis using stable isotope 13C-labelling

Scientific Reports, 2020
The high growth rate of Ulva seaweeds makes it a potential algal biomass resource. In particular, Ulva meridionalis grows up to fourfold a day. Here, we demonstrated strong carbon fixation by U.
Shuntaro Tsubaki, Hiroshi Nishimura, Tomoya Imai, Ayumu Onda, Masanori Hiraoka   +4 more
doaj   +1 more source

COOKING FOR THE LIVING AND THE DEAD: LIPID ANALYSES OF RAUŠI SETTLEMENT AND CEMETERY POTTERY FROM THE 11TH–13TH CENTURY; pp. 45–69 [PDF]

Eesti Arheoloogiaajakiri, 2020
This paper is intended as a contribution to the understanding of Late Iron Age food consumption patterns and dietary preferences along the lower course of the River Daugava.
Alise Gunnarssone, Ester Oras, Helen M. Talbot, Kristi Ilves, Dardega Legzdiņa   +4 more
doaj   +1 more source

Assessing depleted uranium (DU) contamination of soil, plants and earthworms at UK weapons testing sites [PDF]

, 2007
Depleted uranium (DU) weapons testing programmes have been conducted at two locations within the UK. An investigation was therefore carried out to assess the extent of any environmental contamination arising from these test programmes using both alpha ...
Angus B. MacKenzie, Bem, Boag, Bou-Rabee, Danesi, Danesi, Desideri, Di Lella, Di Lella, Ellam, Fisenne, Goldstein, Hamilton, Hu, Ian W. Oliver, Jia, Jia, John G. Farmer, Langdon, Magnoni, Margaret C. Graham, Robert M. Ellam, Rodriguez, Sansone, Sheppard, Sheppard, Tanaka, Trueman, Vera Tome, Yafa, Yamamoto, Yoshida   +31 more
core   +2 more sources

On the interference of Kr during carbon isotope analysis of methane using continuous-flow combustion–isotope ratio mass spectrometry [PDF]

Atmospheric Measurement Techniques, 2013
Stable carbon isotope analysis of methane (δ13C of CH4) on atmospheric samples is one key method to constrain the current and past atmospheric CH4 budget.
J. Schmitt, B. Seth, M. Bock, C. van der Veen, L. Möller, C. J. Sapart, M. Prokopiou, T. Sowers, T. Röckmann, H. Fischer   +9 more
doaj   +1 more source

Radiocarbon dates and stable isotope data for human and animal skeletal remains from a passage grave in Kierzkowo, Poland (Late Neolithic and modern period)

Data in Brief, 2022
This dataset is comprised of paired radiocarbon (14C) dates, and carbon (δ13C) and nitrogen (δ15N) stable isotope ratios received for skeletal remains of 18 humans and 6 animals.
Łukasz Pospieszny, Szymon Nowaczyk
doaj   +1 more source