Preparation method and application of fluorescent optical fiber sensor suitable for monitoring strongly alkaline pH
The invention belongs to the technical field of fluorescence detection, and relates to a preparation method and application of a fluorescent optical fiber sensor suitable for monitoring strongly alkaline pH. The method comprises the following steps: preparation of silicon dioxide fluorescent nanopar...
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| creator | XU WEIQIAO PAN ZIHAN ZHAO XIA FAN LIANG HOU BAORONG |
| description | The invention belongs to the technical field of fluorescence detection, and relates to a preparation method and application of a fluorescent optical fiber sensor suitable for monitoring strongly alkaline pH. The method comprises the following steps: preparation of silicon dioxide fluorescent nanoparticles: covalently adding a 1, 8-naphthalimide fluorescent dye to nano silicon dioxide to prepare the silicon dioxide fluorescent nanoparticles; preparation of PVA/silicon dioxide sol-gel: during preparation of the PVA/silicon dioxide sol-gel, embedding and fixing the silicon dioxide fluorescent nanoparticles in the PVA/silicon dioxide sol-gel through a hydrolytic condensation reaction; optical fiber coating: removing a protective layer from one end of the quartz bare fiber, and carrying out hydroxylation and silanization treatment; and forming a uniform thin film on the end part of the hydroxylated/silanized optical fiber by adopting a dip-coating method, so as to prepare the fluorescent optical fiber sensor suita |
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| subjects | ADHESIVES CHEMISTRY DYES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PHYSICS POLISHES TESTING |
| title | Preparation method and application of fluorescent optical fiber sensor suitable for monitoring strongly alkaline pH |
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