Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Matheus Carvalho de Carvalho"'
Autor:
Matheus Carvalho de Carvalho
Publikováno v:
HardwareX, Vol 10, Iss, Pp e00215-(2021)
Powder weighing is an essential but tedious activity in many branches of science. Here I describe a MIcrobalance AUtosampler (miau) that transfers solids in the sub-mg range to a microbalance. Miau is a pick-and-place machine which moves a gripper wi
Autor:
Gaël Monvoisin, Mahendra P. Verma, Fausto Grassa, Antonio Delgado-Huertas, Matheus Carvalho de Carvalho, Robert van Geldern, Daniel Carrizo
Publikováno v:
Rapid Communications in Mass Spectrometry
Rapid Communications in Mass Spectrometry, Wiley, 2020, 34 (9:UNSPe8685 (IF 2,022).), ⟨10.1002/rcm.8685⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Rapid Communications in Mass Spectrometry, Wiley, 2020, 34 (9:UNSPe8685 (IF 2,022).), ⟨10.1002/rcm.8685⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Rationale: Stable carbon isotope ratios have many applications in natural sciences. In the first worldwide interlaboratory proficiency test, the discrepancies in measured δC values of natural waters were up to σ = ±3‰. Therefore, we continued th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f9c10f66d5db79511b9a94e8885a6c6
https://hal.archives-ouvertes.fr/hal-02952240
https://hal.archives-ouvertes.fr/hal-02952240
Publikováno v:
HardwareX, Vol 3, Iss, Pp 10-38 (2018)
Microsyringe manipulation is a common approach for the automated sampling of liquids or gases. Commercial devices with this capacity are typically priced above US$30,000, despite their technology being not clearly superior to that commonly found in l
Publikováno v:
Global Biogeochemical Cycles. 31:975-984
New respiration (Rnew, of freshly fixated carbon) and old respiration (Rold, of storage carbon) were estimated for different regions of the global surface ocean using published data on simultaneous measurements of the following: (1) primary productiv
Publikováno v:
Biogeosciences. 14:1305-1313
A new approach to autonomously determine concentrations of dissolved inorganic carbon (DIC) and its carbon stable isotope ratio (δ13C–DIC) at high temporal resolution is presented. The simple method requires no customised design. Instead it uses t
Publikováno v:
HardwareX, Vol 8, Iss, Pp e00123-(2020)
Elemental and isotopic analyses are performed using elemental analyzers, and are widely employed for diverse scientific fields. An elemental analyzer is typically equipped with an autosampler. Here we present an open-source autosampler for elemental
Publikováno v:
HardwareX, Vol 4, Iss, Pp-(2018)
Radionuclide measurements have proven to be essential for determining processes related to pressing environmental issues as well as reconstructing historical events related to natural and anthropogenic activities. The detection of radionuclide tracer
Physical and biogeochemical correlates of spatio-temporal variation in the δ13C of marine macroalgae
Publikováno v:
Estuarine, Coastal and Shelf Science. 157:7-18
Carbon isotope ratios (13C/12C) can be used to trace sources of production supporting food chains, as δ13C undergoes relatively small and predictable increases (∼0.5‰) through each trophic level. However, for this technique to be precise, variat
Autor:
Ashly McMahon, Matheus Carvalho de Carvalho, Kai G. Schulz, Damien T. Maher, Bradley D. Eyre, Isaac R. Santos, Tyler Cyronak
Publikováno v:
Geochimica et Cosmochimica Acta. 153:105-115
The carbon isotopic signature (δ13C) of coral skeletons is influenced by isotopic fractionation (eorg) during photosynthetic dissolved inorganic carbon (DIC) fixation, but only a few direct eorg measurements are available in coral communities. In pa
Autor:
Julian P. Sachs, Matheus Carvalho de Carvalho, Pablo Ezequiel Gibilisco, Pedro Bastos de Macedo Carneiro, Fernando Gaspar Dellatorre, Bradley D. Eyre
Little is known about the bulk hydrogen stable isotope composition (δ2H) of seaweeds. This study investigated the bulk δ2H in several different seaweed species collected from three different beaches in Brazil, Australia, and Argentina. Here, we sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1be4ae18afb5f1a58419725b97d527e1
Wiley Online Library
Wiley Online Library