Results 21 to 30 of about 187,307 (265)

PHYSICAL AND CHEMICAL METHODS OF RESEARCHING ROCKS AND MINERALS IN THE ANALYTICAL CENTRE OF THE INSTITUTE OF THE EARTH'S CRUST, SB RAS

Геодинамика и тектонофизика, 2015
The article presents the information on organizing the studies of chemical and mineral compositions of rocks at the Analytical Centre of the Institute of the Earth's Crust, SB.
А. G. Revenko
doaj   +1 more source

Predicting atmospheric cadmium and lead using honeybees as atmospheric heavy metals pollution indicators. Results of a monitoring survey in Northern Italy

Italian Journal of Animal Science, 2021
This study assessed the ability of honeybees as environmental indicators for atmospheric Lead and Cadmium concentrations through regression analyses.
Annamaria Costa, Mauro Veca, Maurizio Barberis, Lorenzo Cicerinegri, Francesco Maria Tangorra   +4 more
doaj   +1 more source

Automated Atomic Absorption Spectrophotometry

Clinical Chemistry, 1973
Abstract Diluting continuous-flow circuits that incorporate a jet mixer with conventional AutoAnalyzer equipment provide a convenient technique for supplying diluted samples to an atomic absorption spectrophotometer at rates up to 90 per hour.
H J, Gitelman, C, Soucek, J F, Owen
openaire   +2 more sources

Application and research progress of flux monitoring technology by atomic absorption spectroscopy in molecular beam epitaxy

Gongneng cailiao yu qijian xuebao
Based on a brief review of the development history of atomic absorption spectroscopy technology, this paper summarizes the structure of the atomic absorption spectroscopy system used for in-situ real-time monitoring of the flux in molecular beam epitaxy,
Qing-ling-yun ZHANG, Yi-qiao CHEN
doaj   +1 more source

EVALUATION OF CHANGES IN CONTENT OF THE ELEMENTS (Fe, Zn, Mn, Cu, Co, Ni, Hg, Cd, Pb, As) IN THE BOTTOM SEDIMENTS IN THE AREA OF CULTIVATION OF THE SCALLOP PATINOPECTEN YESSOENSIS (PETER THE GREAT BAY, SEVERNAYA BAY)

Известия ТИНРО, 2018
Contents of heavy metals and arsenic were measured in bottom sediments under plantations of the marine farm in the Severnaya Bay in 2015–2017, using atomic-absorption spectrophotometer Shimadzu 6800 and mercury analyzer Milestone DMA-80.
K. S. Vyaznikova
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Ionic Exchange Resins and Hydrogels for Capturing Metal Ions in Selected Sweet Dessert Wines

Molecules, 2018
Samples of sweet and dessert wines, Vin Santo (VSR) from Malvasia grapes, and Granello (GR) from Sauvignon grapes were collected and analyzed for the content of selected macro- and micro-nutrients (Na, K, Mg, Ca, Mn, Fe, Cu and Zn) and of Pb.
Gabriella Tamasi, Alessio Pardini, Claudia Bonechi, Alessandro Donati, Mario Casolaro, Gemma Leone, Marco Consumi, Renzo Cini, Agnese Magnani, Claudio Rossi   +9 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Determinação de As, Cd e Pb em amêndoas e mesocarpo de babaçu, sapucaia, xixá e castanha-do-pará por espectrometria de absorção atômica Determination of As, Cd and Pb in babassu nut and mesocarp, sapucaia, xixa and brazilian nut by atomic absorption spectrometry

Química Nova, 2009
This work describes methods for the simultaneous determination of Cd and Pb by graphite furnace atomic absorption spectrometry and As by hydride generation atomic absorption spectrometry in Brazilian nuts.
Marielle Garcia Souza, Edivan Carvalho Vieira, Pedro Vitoriano Oliveira   +2 more
doaj   +1 more source