Amperometric titration of mercury (in the range of 0-4 to 3.5 mg) has been carried out with 2-mercaptobenzoxazole with a stationary electrode in stirred solution in a sodium acetate-acetic acid medium.
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http://dx.doi.org/10.1016/0039-9140(66)80075-9 | DOI Listing |
Chemosphere
February 2025
College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
Various commercial and industrial products widely use highly toxic eight-carbon-chain perfluorooctanesulfonate (PFOS), posing a significant threat to the health of living organisms. In this study, the electrochemical detection of PFOS was achieved by developing a carbon paste electrode (CPE) using the MoTiAlC MAX phase. MoTiAlC was synthesized and directly used to construct the CPE.
View Article and Find Full Text PDFSmall Methods
January 2025
Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Hokkaido, 060-0814, Japan.
Enzyme-based amperometric biosensors have become popular for healthcare applications. However, they have been under constant pressure for technological innovation to improve their sensitivity and usability. An ideal biosensor has high sensitivity and calibration-free characteristics.
View Article and Find Full Text PDFMikrochim Acta
May 2024
Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China.
Developing convenient and reliable methods for Hg monitoring is highly important. Some precious metal nanomaterials with intriguing peroxidase-like activity have been used for highly sensitive Hg detection. However, HO must be added during these detections, which impedes practical applications of Hg sensors due to its susceptible decomposition by environmental factors.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
March 2023
College of Chemistry, Beijing Normal University, Beijing, 100875, China.
Serotonin (5-HT) is a major neurotransmitter broadly involved in many aspects of feeling and behavior. Although its electro-activity makes it a promising candidate for electrochemical sensing, the persistent generation of fouling layers on the electrode by its oxidation products presents a hurdle for reliable sensing. Here, we present a fouling-free 5-HT sensor based on galvanic redox potentiometry.
View Article and Find Full Text PDFMikrochim Acta
November 2022
Dipartimento Di Chimica Industriale "Toso Montanari", Università Di Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy.
Electrode miniaturization has profoundly revolutionized the field of electrochemical sensing, opening up unprecedented opportunities for probing biological events with a high spatial and temporal resolution, integrating electrochemical systems with microfluidics, and designing arrays for multiplexed sensing. Several technological issues posed by the desire for downsizing have been addressed so far, leading to micrometric and nanometric sensing systems with different degrees of maturity. However, there is still an endless margin for researchers to improve current strategies and cope with demanding sensing fields, such as lab-on-a-chip devices and multi-array sensors, brain chemistry, and cell monitoring.
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