Functionalized silver nanoparticles as an effective medium towards trace determination of arsenic (III) in aqueous solution

被引：56

作者：

Boruah, Bijoy Sankar ^{[1
]}

Daimari, Nikhil Kumar ^{[1
]}

Biswas, Rajib ^{[1
]}

机构：

[1] Tezpur Univ, Dept Phys, Appl Opt & Photon Res Lab, Napaam 784028, Assam, India

来源：

RESULTS IN PHYSICS | 2019年 / 12卷

关键词：

Silver nanoparticles; Polyethylene glycol; Colorimetric; Arsenic (III); ATOMIC-ABSORPTION-SPECTROMETRY; COLORIMETRIC DETECTION; SPECTROPHOTOMETRIC DETERMINATION; OPTICAL-FIBER; GOLD NANOPARTICLES; WATER; APTAMER; IONS; SENSOR; PROBE;

D O I：

10.1016/j.rinp.2019.02.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Arsenic is well known for its toxicity and various health effects. In this work, we report a simple, environment friendly and cost effective colorimetric approach for selective detection of arsenic (III) in aqueous medium. PEG functionalized silver nanoparticles were synthesized by chemical reduction method and applied for detection of heavy metal ions like arsenic(III), cobalt (II), cadmium (II), copper (II), iron (III), lead (II), mercury (II), magnesium (II) and nickel (II). In case of arsenic samples, we have observed perceptible alteration of colors from yellow to bluish due to aggregation of PEG functionalized silver nanoparticles. Absorption spectra of the arsenic samples were measured through UV-Vis spectrometry to derive detectable range of arsenic (III) concentration. The results have showed that the detection limit of this sensing unit is 1 ppb with an excellent linearity of similar to 0.99.

引用

页码：2061 / 2065

页数：5

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