FIELD: measurement.
SUBSTANCE: invention relates to the field of measurement equipment and concerns a luminescent sensor for concentration of ions of heavy metals in water. Sensor is based on a solution of quantum dots of ternary composition ZnS-AgInS2. Into aqueous solution there are introduced hybrid complexes based on calcium carbonate (CaCO3) microspheres, doped with magnetic nanoparticles Fe3O4, and the triple-content quantum dots are coated with a polyelectrolyte shell consisting of alternating layers of polyallylamine hydrochloride (PAGE) and poly(4-sodium styrene sulphonate) (PSS).
EFFECT: technical result consists in reducing toxicity of sensor, high sensitivity and accuracy of determining concentration of ions of heavy metals, longer service life of sensor.
2 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LUMINESCENT SENSOR FOR MULTIPLEX (SPECTRAL-TIME) DETECTION OF ANALYTES IN AQUEOUS MEDIA AND METHOD FOR PRODUCTION THEREOF | 2020 |
|
RU2769756C1 |
| METHOD FOR MANUFACTURING INDICATOR MICROCAPSULES USING MAGNETIC AND PLASMON NANOPARTICLES | 2020 |
|
RU2758098C1 |
| PHOTOSENSIBILE ON THE BASIS OF SEMICONDUCTOR QUANTUM POINTS AND CHLORINE E6 | 2015 |
|
RU2629390C2 |
| METHOD FOR HYDROPHILIZATION OF QUANTUM DOTS | 2021 |
|
RU2786239C1 |
| CARRIER FOR DIAGNOSING, DIRECTED DELIVERY AND CONTROLLED RELEASE OF MEDICINAL AGENTS | 2018 |
|
RU2693485C1 |
| METHOD FOR PHASE-TRANSFER OF INORGANIC COLLOIDAL SEMICONDUCTOR NANOCRYSTALS | 2014 |
|
RU2583097C2 |
| METHOD OF INSERTING QUANTUM DOTS INTO POROUS CALCIUM CARBONATE PARTICLES BY CODEPOSITION | 2012 |
|
RU2509057C2 |
| DISSOCIATIVE LUMINESCENT NANOSENSOR OF METAL IONS AND HYDROGEN IN AQUEOUS SOLUTIONS | 2011 |
|
RU2456579C1 |
| METHOD OF MODIFYING ENVELOPES OF POLYELECTROLYTE CAPSULES WITH MAGNETITE NANOPARTICLES | 2011 |
|
RU2522204C2 |
| HOLOGRAPHIC PHOTOPOLYMERISABLE MATERIAL | 2020 |
|
RU2752026C1 |
