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A Highly Facile and Selective Chemo-Paper-Sensor (CPS) for Detection of Strontium

A Highly Facile and Selective Chemo-Paper-Sensor (CPS) for Detection of Strontium

Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh, Chang-Soo Lee, Changhyun Roh

Chemosphere. 2016 Jun;152:39-46.

PMID: 26953730

Abstract:

Chemosensors have attracted increasing attention for their usefulness on-site detection and monitoring. In this study, we elucidated a novel, facile, and highly selective Chemo-Paper-Sensor (CPS) for detection and monitoring of strontium (Sr(2+)) ions, which means a potent colorimetric sensor based on a Chrysoidine G (CG)-coated paper strip. The CPS for highly selective colorimetric detection of strontium ion was handily analyzed to determine the red-green-blue (RGB) value using portable devices such as desktop digital scanner and mobile phone camera, quantitatively. Interestingly, an orange to dark orange color transition was observed when the aqueous and solid paper colorimetric sensor was introduced to Sr(2+) ion, respectively. It was demonstrated that the value of the signal has a linear relationship with concentrations of the strontium in the 500 ppm to 100 ppb range with a detection limit of 200 ppb. We believe that a newly developed Chemo-Paper-Sensor will be useful in a wide range of sensing applications.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP532821	Chrysoidine G		532-82-1	Price

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