Abstract

This work introduces the concept of a novel thiocyanate ion (SCN-) detecting device. We show proof-of-principle of the device, namely IPMC film prepared by surface modification of the ionic-polymer film. In this work, naked-eye detection of thiocyanate ion (SCN-) by using iron exchanged ionic polymer-metal composites (IPMC) strip has been achieved. It was successfully applied to direct determination of thiocyanate at micro-molar level in water samples. The response time of the sensor in whole concentration ranges is very short (<10 s). The response of the sensor is independent on the pH range of 2-10.

Highlights

  • Thiocyanate (SCN-), a metabolite of cyanide detoxification is produced endogenously in the liver [1], and it is abundance in physiological fluids like saliva, breast milk [2]

  • In this paper we report the possibility of using ionic polymer metal composites (IPMC) towards naked-eye detection of thocyanate in aqueous sample based on the formation of a red color Fe-Sensing of Thiocyanate Ion (SCN) adduct [15]

  • In the present work we explored the possibility of using IPMC strip as a device for detection of thiocyanate (SCN-)

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Summary

Introduction

Thiocyanate (SCN-), a metabolite of cyanide detoxification is produced endogenously in the liver [1], and it is abundance in physiological fluids like saliva, breast milk [2]. Development of devices and methods offering various advantages such as simplicity, relatively fast response, low cost, wide linear dynamic range and ease of preparation and procedures for precise determination of thiocyanate is of current research interest [10,11,12,13,14], in the context of monitoring the cyanide exposure, especially from tobacco smoking. In this paper we report the possibility of using ionic polymer metal composites (IPMC) towards naked-eye detection of thocyanate in aqueous sample based on the formation of a red color Fe-SCN adduct [15].

Results
Conclusion

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