Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Diagnostic Calculation of Trace Calcium Ions in Food Using a DNA doped Sensor

  • Yang, Young-Kyun (Department of Basic Education Seoul National University of Technology) ;
  • Ly, Suw-Young (Biosensor Research Institute in Seoul National University of Technology)
  • Received : 2013.03.14
  • Accepted : 2013.06.28
  • Published : 2013.06.30
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Abstract

The diagnostic assay of calcium ion was sought using a modified sensor with square-wave stripping voltammetry (SWSV) and cyclic voltammetry (CV). In this study, simple graphite pencil was used as working, reference, and auxiliary electrodes. By coating the working electrodes with DNA, their sensitivity was very much improved, and good results were yielded. Moreover, clean seawater was used as an electrolyte solution instead of acid and base electrolytes to lessen the expenses involved in the experiment. The analytical optimum conditions were also examined. These conditions were attained at the low detection limit of $0.6ugL^1$. After that, the results were applied to drinking water of milk contain.

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References

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