Journal of Korea Society of Digital Industry and Information Management (디지털산업정보학회논문지)

Korea Society of Digital Industry and Information Management (디지털산업정보학회)
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Determination of measuring time for decision of heavy metal ion concentration in Square Wave Voltammetry with FPGA

FPGA를 이용한 네모파 전압전류법의 계측시간 분석

  • Received : 2016.11.16
  • Accepted : 2016.12.02
  • Published : 2016.12.30
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Abstract

In this research, to analyze the concentration of heavy metal ions in water, we tried to find the measuring time at which the faradaic electric currents flowing by the pure oxidation-reduction reaction from the pushing up mercury electrode of the stripping scan square wave voltammetry(SV+SWV) methods system becomes larger than the capacitance electric current. In order to do this, a method for analyzing signals using FPGA has been designed and we conducted 120 experiments using it. As a result, when the frequency of the square wave is 40Hz, The valid potential-current signal was measured from 96.6667% to 96.7155% of the end of the pulse of the forward and reverse, and the optimal signal was measured at 96.6667%. In addition, the experiment was carried out 40 times by changing the pulse height of the square wave from 10Mv to 40Mv. As a result, at a size smaller than 40Mv, there is little change in the magnitude of the potential-current, and an invalid signal was generated when it is out of this size.

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References

  1. C.W.K.Chow.D.E.Davey.D.E.Mulcahy. T.C.W.Yeow, "Signal enhancement of potentiometric stripping analysis using digital signal processing," analytica chimica acta, Vol.307, 1995, pp. 15-26. https://doi.org/10.1016/0003-2670(95)00023-S
  2. 김일광.박성우, "전압전류법(Voltammetry)의 분석적 응용," Analytical Science & Technology, Vol.9, No.4, 1996, pp. 93-109.
  3. 이경애.최규원, "매달린 수은 방울에서 나타나 는 폴라로그래피의 극대 현상에 관한 연구," The Korean Society of Analytical Sciences, Vol.1, No.1, 1988, pp. 3-9.
  4. 이수정.한영희, "네모파 전압전류법에 의한 Cimetidine 주사액의 정량분석," Analytical Science & Technology, Vol.23, No.1, 2010, pp. 68-73. https://doi.org/10.5806/AST.2010.23.1.068
  5. 양재봉.정병주, "적상 수은전극 시스템," 대한민국특허청, 특허번호 0265023, 2000.
  6. 이재춘.전병성, "유리탄소전극과 적상수은전극을 이용한 미량원소측정시스템과 그의 전자시스템 및 제어방법," 대한민국특허청, 특허번호 10-0485988, 2005.
  7. Xilinx, "Xilinx DS099 Spartan-3 FPGA Family Data," Xilinx, 2013.
  8. 최현준.장석우, "FPGA를 이용한 디지털 계측시스템의 설계 및 구현," 디지털산업정보학회논문지, 제9권, 제2호, 2013, pp. 55-61.
  9. 장재현.손철봉.양현욱.최승원, "Zadoff-Chu sequence를 이용한 실시간 Calibration 알고리즘과 FPGA 구현," 디지털산업정보학회 논문지, 제9권, 제3호, 2013, pp. 59-65.