Research output: Contribution to journal › Article › peer-review
Feasibility study of Mossbauer spectroscopy as a tool to explore PVC-plasticized potentiometric sensor membranes. / Panchuk, Vitaly; Semenov, Valentin; Ashina, J.; Legin, Andrey; Mikhelson, Konstantin; Kirsanov, Dmitry.
In: Sensors and Actuators, B: Chemical, Vol. 298, 126880, 01.11.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Feasibility study of Mossbauer spectroscopy as a tool to explore PVC-plasticized potentiometric sensor membranes
AU - Panchuk, Vitaly
AU - Semenov, Valentin
AU - Ashina, J.
AU - Legin, Andrey
AU - Mikhelson, Konstantin
AU - Kirsanov, Dmitry
PY - 2019/11/1
Y1 - 2019/11/1
N2 - There is a serious lack of instrumental studies of polymeric membrane ion sensors that would give reliable information on the chemistry behind the sensor response. These types of studies are quite challenging due to the low content of species of interest in the membrane material and due to specific features of plasticized polymeric sensor membranes. Mössbauer spectroscopy is a powerful tool for studying local chemical environment of the probe atom. In this research we explored the forms of iron existence in different PVC-plasticized membranes containing Fe-binding ligand and cation-exchanger. In order to be able to observe Mössbauer effect we employed 57Fe-enriched sample solutions to soak the membranes and performed the measurements at 80 K to increase the recoil-free factor. It was found that the chemical forms of iron are different in membranes containing the ion-exchanger and those containing both ion-exchanger and the ligand. The relative content of iron in various forms was estimated. It was also observed that iron ions enter into the «dummy» membranes with no ligand and ion-exchanger, however in very small amounts.
AB - There is a serious lack of instrumental studies of polymeric membrane ion sensors that would give reliable information on the chemistry behind the sensor response. These types of studies are quite challenging due to the low content of species of interest in the membrane material and due to specific features of plasticized polymeric sensor membranes. Mössbauer spectroscopy is a powerful tool for studying local chemical environment of the probe atom. In this research we explored the forms of iron existence in different PVC-plasticized membranes containing Fe-binding ligand and cation-exchanger. In order to be able to observe Mössbauer effect we employed 57Fe-enriched sample solutions to soak the membranes and performed the measurements at 80 K to increase the recoil-free factor. It was found that the chemical forms of iron are different in membranes containing the ion-exchanger and those containing both ion-exchanger and the ligand. The relative content of iron in various forms was estimated. It was also observed that iron ions enter into the «dummy» membranes with no ligand and ion-exchanger, however in very small amounts.
KW - Ion-selective sensors
KW - Mössbauer spectroscopy
KW - polymeric sensor membranes
KW - SOLVENT POLYMERIC MEMBRANES
KW - WATER-UPTAKE
KW - Mossbauer spectroscopy
KW - ELECTRODES
KW - SURFACE
KW - ION-SELECTIVE MEMBRANES
KW - STABILITY-CONSTANTS
UR - http://www.scopus.com/inward/record.url?scp=85070223672&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/feasibility-study-m%C3%B6ssbauer-spectroscopy-tool-explore-pvcplasticized-potentiometric-sensor-membranes
U2 - 10.1016/j.snb.2019.126880
DO - 10.1016/j.snb.2019.126880
M3 - Article
AN - SCOPUS:85070223672
VL - 298
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
M1 - 126880
ER -
ID: 45076262