Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (2)

Search Parameters:
Keywords = bicarbonate ion-selective electrode

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
13 pages, 3263 KB  
Article
A New Application of Internet of Things and Cloud Services in Analytical Chemistry: Determination of Bicarbonate in Water
by J. V. Capella, Alberto Bonastre, Rafael Ors and Miguel Peris
Sensors 2019, 19(24), 5528; https://doi.org/10.3390/s19245528 - 14 Dec 2019
Cited by 11 | Viewed by 3440
Abstract
In a constantly evolving world, new technologies such as Internet of Things (IoT) and cloud-based services offer great opportunities in many fields. In this paper we propose a new approach to the development of smart sensors using IoT and cloud computing, which open [...] Read more.
In a constantly evolving world, new technologies such as Internet of Things (IoT) and cloud-based services offer great opportunities in many fields. In this paper we propose a new approach to the development of smart sensors using IoT and cloud computing, which open new interesting possibilities in analytical chemistry. According to IoT philosophy, these new sensors are able to integrate the generated data on the existing IoT platforms, so that information may be used whenever needed. Furthermore, the utilization of these technologies permits one to obtain sensors with significantly enhanced features using the information available in the cloud. To validate our new approach, a bicarbonate IoT-based smart sensor has been developed. A classical CO2 ion selective electrode (ISE) utilizes the pH information retrieved from the cloud and then provides an indirect measurement of bicarbonate concentration, which is offered to the cloud. The experimental data obtained are compared to those yielded by three other classical ISEs, with satisfactory results being achieved in most instances. Additionally, this methodology leads to lower-consumption, low-cost bicarbonate sensors capable of being employed within an IoT application, for instance in the continuous monitoring of HCO3 in rivers. Most importantly, this innovative application field of IoT and cloud approaches can be clearly perceived as an indicator for future developments over the short-term. Full article
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2019-2020)
Show Figures

Graphical abstract

14 pages, 3085 KB  
Article
A Breakthrough Application of a Cross-Linked Polystyrene Anion-Exchange Membrane for a Hydrogencarbonate Ion-Selective Electrode
by Sylwia Dabrowska, Jan Migdalski and Andrzej Lewenstam
Sensors 2019, 19(6), 1268; https://doi.org/10.3390/s19061268 - 13 Mar 2019
Cited by 20 | Viewed by 5756
Abstract
Polystyrene cross-linked with divinylbenzene and functionalized by a quaternary ammonium cation anion site is used as the membrane of a hydrogencarbonate (i.e., bicarbonate) ion-selective electrode. The polystyrene matrix membrane improves the selectivity towards interfering lipophilic ions in comparison to previously described polyvinyl chloride [...] Read more.
Polystyrene cross-linked with divinylbenzene and functionalized by a quaternary ammonium cation anion site is used as the membrane of a hydrogencarbonate (i.e., bicarbonate) ion-selective electrode. The polystyrene matrix membrane improves the selectivity towards interfering lipophilic ions in comparison to previously described polyvinyl chloride membranes. The reason for this behaviour is sought in coupled ion-exchange and pore-diffusion processes in the membrane and the resulting kinetic discrimination of interfering ions. The electrode is successfully used for determination of bicarbonates in mineral drinking waters. The simplex method is employed to refine the analytical outcome. Full article
(This article belongs to the Section Chemical Sensors)
Show Figures

Graphical abstract

Back to TopTop