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Sökning: WFRF:(Gomis Berenguer Alicia) > (2023) > Portable All-in-One...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03741naa a2200361 4500 | |
| 001 | oai:DiVA.org:kth-330029 | |
| 003 | SwePub | |
| 008 | 230627s2023 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3300292 URI |
| 024 | 7 | a https://doi.org/10.1021/acs.analchem.2c053072 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Chen, Chenu KTH,Tillämpad fysikalisk kemi4 aut0 (Swepub:kth)u1c3hj8e |
| 245 | 1 0 | a Portable All-in-One Electrochemical Actuator-Sensor System for the Detection of Dissolved Inorganic Phosphorus in Seawater |
| 264 | c 2023-02-01 | |
| 264 | 1 | b American Chemical Society (ACS),c 2023 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20230627 | |
| 520 | a We present a methodology for the detection of dissolved inorganic phosphorous (DIP) in seawater using an electrochemically driven actuator-sensor system. The motivation for this work stems from the lack of tangible solutions for the in situ monitoring of nutrients in water systems. It does not require the addition of any reagents to the sample and works under mild polarization conditions, with the sample confined to a thin-layer compartment. Subsequent steps include the oxidation of polyaniline to lower the pH, the delivery of molybdate via a molybdenum electrode, and the formation of an electroactive phosphomolybdate complex from DIP species. The phosphomolybdate complex is ultimately detected by either cyclic voltammetry (CV) or square wave voltammetry (SWV). The combined release of protons and molybdate consistently results in a sample pH < 2 as well as a sufficient excess of molybdate, fulfilling the conditions required for the stoichiometric detection of DIP. The current of the voltammetric peak was found to be linearly related to DIP concentrations between 1 and 20 μM for CV and 0.1 and 20 μM for SWV, while also being selective against common silicate interference. The analytical application of the system was demonstrated by the validated characterization of five seawater samples, revealing an acceptable degree of difference compared to chromatography measurements. This work paves the way for the future DIP digitalization in environmental waters by in situ electrochemical probes with unprecedented spatial and temporal resolution. It is expected to provide real-time data on anthropogenic nutrient discharges as well as the improved monitoring of seawater restoration actions. | |
| 650 | 7 | a NATURVETENSKAPx Kemix Analytisk kemi0 (SwePub)104012 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Analytical Chemistry0 (SwePub)104012 hsv//eng |
| 700 | 1 | a Wiorek, Alexanderu KTH,Tillämpad fysikalisk kemi4 aut0 (Swepub:kth)u1r5mhmr |
| 700 | 1 | a Gomis Berenguer, Alicia4 aut |
| 700 | 1 | a Crespo, Gaston A.,d 1980-u KTH,Tillämpad fysikalisk kemi,UCAM-SENS, Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, 30107 Murcia, Spain, Avda. Andres Hernandez Ros 14 aut0 (Swepub:kth)u185cj5g |
| 700 | 1 | a Cuartero, Maria,c PhD,d 1984-u KTH,Tillämpad fysikalisk kemi,UCAM-SENS, Universidad Católica San Antonio de Murcia, UCAM HiTech, Avda. Andres Hernandez Ros 1, 30107 Murcia, Spain, Avda. Andres Hernandez Ros 14 aut0 (Swepub:kth)u1lfp38j |
| 710 | 2 | a KTHb Tillämpad fysikalisk kemi4 org |
| 773 | 0 | t Analytical Chemistryd : American Chemical Society (ACS)g 95:8, s. 4180-4189q 95:8<4180-4189x 0003-2700x 1520-6882 |
| 856 | 4 | u https://doi.org/10.1021/acs.analchem.2c05307y Fulltext |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-330029 |
| 856 | 4 8 | u https://doi.org/10.1021/acs.analchem.2c05307 |
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