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通过简单的混合加载技术，利用包含荧光探针的混合介孔二氧化硅材料对痕量汞（II）进行混合读取测定。

Mix-&-Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix-&-Load Technique.

作者信息

Climent Estela, Hecht Mandy, Witthuhn Heike, Gawlitza Kornelia, Rurack Knut

机构信息

Department of Analytical Chemistry; Reference Materials Bundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Str. 11 12489 Berlin Germany.

Current address: CodeCheck GmbH Gneisenaustraße 115 10961 Berlin Germany.

出版信息

ChemistryOpen. 2018 Dec 5;7(12):957-968. doi: 10.1002/open.201800277. eCollection 2018 Dec.

DOI:10.1002/open.201800277
PMID:30534510
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6280557/
Abstract

The synthesis, characterization, and application of mesoporous materials containing boron-dipyrromethene (BODIPY) moieties that allow the sensitive and selective detection of Hg in aqueous environments by fluorescence enhancement is reported. For this purpose, BODIPY dye containing a thia-aza crown ether receptor as the fluorescent probe for the detection of Hg in aqueous environments is encapsulated into mesoporous materials to avoid self-quenching or aggregation in water. Determination of Hg is accomplished within a few seconds with high selectivity and sensitivity, reaching a limit of detection of 12 ppt. The determination of trace amounts of Hg in natural waters and in fish extracts is demonstrated by using our sensing material. The incorporation of the material into several μ-PAD strips yields a portable, cheap, quick, and easy-to-handle tool for trace Hg analysis in water.

摘要

报道了含硼二吡咯亚甲基（BODIPY）基团的介孔材料的合成、表征及应用，该材料可通过荧光增强在水环境中灵敏且选择性地检测汞。为此，将含有硫氮杂冠醚受体作为水环境中汞检测荧光探针的BODIPY染料封装到介孔材料中，以避免其在水中发生自猝灭或聚集。汞的测定在几秒钟内即可完成，具有高选择性和灵敏度，检测限达12 ppt。使用我们的传感材料展示了对天然水和鱼提取物中痕量汞的测定。将该材料整合到几个微流控分析试纸条中，可得到一种用于水中痕量汞分析的便携、廉价、快速且易于操作的工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/da98e74c63cd/OPEN-7-957-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/5f0bdc1dd281/OPEN-7-957-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/e5cc3682337f/OPEN-7-957-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/7759e4a1efc6/OPEN-7-957-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/a10946dbbe03/OPEN-7-957-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/da98e74c63cd/OPEN-7-957-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/5f0bdc1dd281/OPEN-7-957-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/dbefc5d3ce67/OPEN-7-957-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/d3e02c1eefc7/OPEN-7-957-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/e5cc3682337f/OPEN-7-957-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/8d56953bf7a9/OPEN-7-957-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/7759e4a1efc6/OPEN-7-957-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/a10946dbbe03/OPEN-7-957-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cea/6280557/da98e74c63cd/OPEN-7-957-g008.jpg

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