Zobrazeno 1 - 10
of 902
pro vyhledávání: '"Isotope dilution method"'
Publikováno v:
Yuanzineng kexue jishu, Vol 57, Iss 11, Pp 2225-2232 (2023)
Preliminary validation of isotope dilution gamma spectroscopy (IDGS) for plutonium concentration measurement was investigated in this study. A high 239Pu abundance plutonium solution was used as an isotope dilution agent. By studying the changes in i
Externí odkaz:
https://doaj.org/article/cb08b2cc2d434e1c84a5d4d0d35c2f0c
Autor:
Joonhee Lee, Byungjoo Kim, Hee-Jung Sim, Dongwon Seo, Byung-Man Kwak, Jongeun Won, Sunyoung Lee, Song-Yee Baek, Jeesoo Han
Publikováno v:
Journal of Analytical Science and Technology, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Multivitamin tablet certified reference material (CRM, 108-10-019) was developed for the analysis of seven water-soluble vitamins, including thiamine, riboflavin, nicotinamide, pantothenic acid, pyridoxine, biotin, and folic acid. The CRM wa
Externí odkaz:
https://doaj.org/article/1465b7d447384c8db27f055947aafdc6
Publikováno v:
Plant Methods, Vol 17, Iss 1, Pp 1-13 (2021)
Abstract Background Karrikins (KARs) are recently described group of plant growth regulators with stimulatory effects on seed germination, seedling growth and crop productivity. So far, an analytical method for the simultaneous targeted profiling of
Externí odkaz:
https://doaj.org/article/133b9fd94f3c46cfbc3f1ad0f9c0a8f4
Autor:
Xianbiao Lin, Kaijun Lu, Amber K. Hardison, Zhanfei Liu, Xin Xu, Dengzhou Gao, Jun Gong, Wayne S. Gardner
Publikováno v:
Ecological Indicators, Vol 126, Iss , Pp 107639- (2021)
Using 15N stable isotope as a tracer to quantify N transformation rates in isotope-enrichment experiments improves understanding of the N cycle in various ecosystems. However, measuring 15N-nitrate (15NO3−) in small volumes of water for these exper
Externí odkaz:
https://doaj.org/article/b563f395770146ff884966fb2f5cc8e0
Akademický článek
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Publikováno v:
Animal, Vol 12, Iss 4, Pp 684-691 (2018)
An isotope dose technique was utilized (i) to determine endogenous amino acid (AA) and protein losses and (ii) to propose adjusted values for AA requirements. The endogenous flow rate was calculated from the pool of enrichment in plasma AA, assuming
Externí odkaz:
https://doaj.org/article/34b686d9ea98420f9ba882e874b99057
Akademický článek
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Publikováno v:
The Journal of Nutrition. 152:86-93
BACKGROUND To minimize both cost and perturbations to the vitamin A system, investigators limit the amount of stable isotope administered when estimating vitamin A total body stores (TBS) by retinol isotope dilution (RID). OBJECTIVES We hypothesized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::590d2453f7e5e3be718dd3b97e16f146
https://doi.org/10.1093/jn/nxab337
https://doi.org/10.1093/jn/nxab337
Autor:
Alexander C. Gagnon, Anne M. Gothmann
Publikováno v:
Geochimica et Cosmochimica Acta. 315:38-60
Culture experiments are uniquely suited for uncovering the fundamental factors controlling skeletal geochemistry because it is possible to explore conditions beyond what is found in the modern ocean and to decouple parameters that co-vary in nature.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71d10f180cc0e5f04267da6acc96eea5
https://doi.org/10.1016/j.gca.2021.09.020
https://doi.org/10.1016/j.gca.2021.09.020
Publikováno v:
Antioxidants; Volume 11; Issue 12; Pages: 2401
2-Oxo-imidazole-containing dipeptides (2-oxo-IDPs), novel imidazole-containing dipeptide (IDP) derivatives, exhibit a much higher antioxidant capacity than that of IDPs. However, quantitative methods have only been developed for IDPs, and methods for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5c1103541b1f24613fda99fbfe2f6a6
https://pubmed.ncbi.nlm.nih.gov/36552608
https://pubmed.ncbi.nlm.nih.gov/36552608