Determination of gold nanoparticles in environmental water samples by second-order optical scattering using dithiotreitol-functionalized CdS quantum dots after cloud point extraction
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- 作者：Spyridoula P. Mandyla ; George Z. Tsogas ; Athanasios G. Vlessidis ; Dimosthenis L. Giokas ; dgiokas@cc.uoi.gr
- 关键词：Gold nanoparticles ; Cloud point extraction ; Second-order scattering ; Environmental samples
- 刊名：Journal of Hazardous Materials
- 出版年：2017
- 出版时间：5 February 2017
- 年：2017
- 卷：323
- 期：part_PA
- 页码：67-74
- 全文大小：1170 K
- 卷排序：323
文摘
A new method has been developed to determine gold nanoparticles in water samples. Extraction was achieved by cloud point extraction. A nano-hybrid assembly between AuNPs and dithiol-coated quantum dots was formulated. Detection was accomplished at pico-molar levels by second-order light scattering. The method was selective against ionic gold and other nanoparticle species.