Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12808
ชื่อเรื่อง: Simple and selective paper-based colorimetric sensor for determination of chloride ion in environmental samples using label-free silver nanoprisms
ผู้แต่ง: Yakoh A.
Rattanarat P.
Siangproh W.
Chailapakul O.
Keywords: Analytic equipment
Chlorine compounds
Color
Image processing
Ions
Nanospheres
Silver
Surface treatment
Chloride ions
Colorimetric detection
Colorimetric sensors
Environmental sample
Linear relationships
Paper-based analytical devices
Quantitative measurement
Silver nanoprisms
Colorimetry
วันที่เผยแพร่: 2018
บทคัดย่อ: Simple and selective paper-based colorimetric sensors using silver nanoprism (AgNPrs) were conveniently fabricated and developed for the determination of chloride ions (Cl−) contaminated in the environment. Samples containing different concentrations of Cl− were analyzed. The analysis is based on the oxidative etching of the AgNPrs into smaller silver nanospheres (AgNPss) by Cl−. In the presence of Cl−, the distinctive color change of the AgNPrs from dark-violet to red was rapidly visualized by the naked eye in 5 min without the requirement of surface modification. For quantitative measurement using image processing, a good linear relationship (R2 = 0.996) between logarithmic of Cl− concentration and the average mean color intensity was obtained in the range of 10–1000 mg L−1 with a detection limit of 1.3 mg L−1. The developed sensors were investigated for precision, accuracy, and sensitivity and validated by the classical method. Statistical analysis proved that the developed sensors were precise, sensitive and accurate and can be used effectively for the analysis of Cl− in natural waters. © 2017 Elsevier B.V.
URI: https://ir.swu.ac.th/jspui/handle/123456789/12808
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029507390&doi=10.1016%2fj.talanta.2017.09.013&partnerID=40&md5=d77bf50c860c73cf0be18bf31020d406
ISSN: 399140
Appears in Collections:Scopus 1983-2021

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