Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Lars Hauer Larsen"'
Autor:
Emilio Garcia-Robledo, Lars Hauer Larsen, Kurt V. Gothelf, Niels Peter Revsbech, Steffen Gralert Sveegaard, Mikkel Holmen Andersen
Publikováno v:
Revsbech, N P, Garcia-Robledo, E, Sveegaard, S, Andersen, M H, Gothelf, K V & Larsen, L H 2019, ' Amperometric microsensor for measurement of gaseous and dissolved CO 2 ', Sensors and Actuators, B: Chemical, vol. 283, pp. 349-354 . https://doi.org/10.1016/j.snb.2018.12.038
A simple method to measure dissolved CO2 at a microscale would be beneficial for many scientific and medical applications. A simple amperometic microsensor for CO2 with a 20–100 μm wide tip was developed by placing a layer of acidic O2 trap soluti
Autor:
Lars Hauer Larsen, Bo Thamdrup, Tage Dalsgaard, Osvaldo Ulloa, Jens K. Gundersen, Niels Peter Revsbech
Publikováno v:
Limnology and Oceanography: Methods. 7:371-381
The methods used until now have not been able to reliably resolve O2 concentrations in oceanic oxygen minimum zones below 1–2 µmol L−1. We present a new amperometric sensor for the determination of ultra-low O2 concentrations under in situ condi
Autor:
Lars Riis Damgaard, Christian Dinkel, Lars Peter Nielsen, Alfred Wüest, Bernhard Wehrli, Beat Müller, Lars Hauer Larsen, Andreas Brand, Ole Birger Pedersen, Niels Peter Revsbech
Publikováno v:
Limnology and Oceanography: Methods. 5:185-191
The currents in the lowest few millimeters of the bottom boundary layer of lakes are highly important for the dissipation of kinetic energy and for chemical processes such as oxygen transfer into the sediment. So far, no high-resolution flow velocity
Publikováno v:
Nielsen, M, Larsen, L H, Ottosen, L D M & Revsbech, N P 2015, ' Hydrogen microsensors with hydrogen sulfide traps ', Sensors and Actuators B: Chemical, vol. 215 . https://doi.org/10.1016/j.snb.2015.03.035
Hydrogen is often formed in sulfidic environments where interference from hydrogen sulfide has prevented its analysis by amperometric hydrogen microsensors. Hydrogen microsensors were made insensitive to hydrogen sulfide by placing a sulfide trap (gu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44c839468aabfebaf3587939eec418f1
https://pure.au.dk/portal/da/publications/hydrogen-microsensors-with-hydrogen-sulfide-traps(d0e6e282-ac55-4f97-bfb7-382088a798cf).html
https://pure.au.dk/portal/da/publications/hydrogen-microsensors-with-hydrogen-sulfide-traps(d0e6e282-ac55-4f97-bfb7-382088a798cf).html
Autor:
Mike S. M. Jetten, Michael Nielsen, Olav Sliekers, Lars Hauer Larsen, Niels Peter Revsbech, Markus Schmid, Lars Peter Nielsen, Annette Bollmann, Ingo Schmidt, Marc Strous
Publikováno v:
Nielsen, M, Bollmann, A, Sliekers, O, Jetten, M, Schmied, M, Strous, M, Schmidt, I, Larsen, L H, Nielsen, L P & Revsbech, N P 2005, ' Kinetics, diffusional limitation and microscale distribution of chemistry and organisms in a CANON reactor ', F E M S Microbiology Ecology, vol. 51, pp. 247-256 .
FEMS Microbiology Ecology, 51, 2, pp. 247-256
Aarhus University
FEMS Microbiology Ecology, 51, 247-256
FEMS Microbiology Ecology, 51, 2, pp. 247-256
Aarhus University
FEMS Microbiology Ecology, 51, 247-256
In the Completely Autotrophic Nitrogen removal Over Nitrite (CANON) process, aerobic and anaerobic ammonia oxidizing bacteria cooperate to remove ammonia in one oxygen-limited reactor. Kinetic studies, microsensor analysis, and fluorescence in situ h
Publikováno v:
Aarhus University
Applied and Environmental Microbiology, 70, 11, pp. 6551-6558
Applied and Environmental Microbiology, 70, 6551-6558
Applied and Environmental Microbiology, 70, 11, pp. 6551-6558
Applied and Environmental Microbiology, 70, 6551-6558
A sensitive NO 2 − biosensor that is based on bacterial reduction of NO 2 − to N 2 O and subsequent detection of the N 2 O by a built-in electrochemical N 2 O sensor was developed. Four different denitrifying organisms lacking NO 3 − reductase
Publikováno v:
Analytica Chimica Acta. 391:57-63
We present a new method for changing the sensitivity of any microsensor that functions by converting an ion into an uncharged molecule which is subsequently detected. The method is based on attraction or repulsion of ions from the sensor tip by an ap
Publikováno v:
Applied and Environmental Microbiology. 64:3264-3269
High-resolution NO 3 − profiles in freshwater sediment covered with benthic diatoms were obtained with a new microscale NO 3 − biosensor characterized by absence of interference from chemical species other than NO 2 − and N 2 O. Analysis of the
Publikováno v:
Analytical Chemistry. 69:3527-3531
A biosensor for NO(3)(-) containing immobilized dentrifying bacteria and a reservoir of liquid growth medium for the bacteria was constructed. The bacteria did not have a N(2)O reductase and therefore reduced NO(3)(-) to N(2)O, which was then subsequ
A microscale biosensor for acetate, propionate, isobutyrate, and lactate is described. The sensor is based on the bacterial respiration of low-molecular-weight, negatively charged species with a concomitant reduction of NO3 to N2O. A culture of denit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cec343ae95ad86914056d9f8ab57676
https://europepmc.org/articles/PMC123769/
https://europepmc.org/articles/PMC123769/