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Quantifying cyanide in water and foodstuff using corrin-based CyanoKit technologies and a smartphone


Cherbuin, Mathias; Zelder, Felix; Karlen, Walter (2019). Quantifying cyanide in water and foodstuff using corrin-based CyanoKit technologies and a smartphone. The Analyst, 144(1):130-136.

Abstract

This paper describes the detection of endogenous cyanide using corrin-based CyanoKit technologies in combination with a smartphone readout device. When applied to the detection of cyanide in water, this method demonstrates high repeatability and discriminative power with a limit of blank of 0.074 ppm and an instrument limit of detection of 0.13 ppm. Quantification of endogenous cyanide in cassava and bitter almond extracts with the smartphone readout is in excellent agreement with independent analyses using traditional spectrophotometric detection. The prototype system objectively detects levels of cyanide with a high granularity at the point-of-need and does not depend on large, heavy and expensive instrumentation. The methodology has the potential to be easily adopted in resource limited situations and low-income countries.

Abstract

This paper describes the detection of endogenous cyanide using corrin-based CyanoKit technologies in combination with a smartphone readout device. When applied to the detection of cyanide in water, this method demonstrates high repeatability and discriminative power with a limit of blank of 0.074 ppm and an instrument limit of detection of 0.13 ppm. Quantification of endogenous cyanide in cassava and bitter almond extracts with the smartphone readout is in excellent agreement with independent analyses using traditional spectrophotometric detection. The prototype system objectively detects levels of cyanide with a high granularity at the point-of-need and does not depend on large, heavy and expensive instrumentation. The methodology has the potential to be easily adopted in resource limited situations and low-income countries.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > Analytical Chemistry
Life Sciences > Biochemistry
Physical Sciences > Environmental Chemistry
Physical Sciences > Spectroscopy
Physical Sciences > Electrochemistry
Uncontrolled Keywords:Analytical Chemistry, Spectroscopy, Electrochemistry, Biochemistry, Environmental Chemistry
Language:English
Date:1 January 2019
Deposited On:07 Feb 2020 17:07
Last Modified:29 Jul 2020 13:59
Publisher:Royal Society of Chemistry
ISSN:0003-2654
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1039/c8an01059e
Project Information:
  • : FunderSNSF
  • : Grant IDPP00P2_150640
  • : Project TitleIntelligent Point-of-Care Monitoring: A Swiss Army Knife Approach to mHealth

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