DOI QR코드

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Differential Titrimetric Determination of Bismuth$^1$

  • Choi, Q.-Won (Department of Chemistry, Seoul National University) ;
  • Lim, H. S. (Hughes Research Institute)
  • 발행 : 1983.10.20

초록

A precise EDTA titrimetric method involving a weight titration of major portion with solid reagent followed by titration of the remainder with a very dilute standard solution has been developed for the determination of bismuth. When the end point is determined by means of amperometry with a rotating mercury electrode, the error in bismuth analysis is less than 0.01 % even when $Pb^{2+}$, $Zn^{2+}$, or $Cd^{2+}$ is present. However, copper interferes appreciably and masking with thiourea gives too low results.

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참고문헌

  1. Master's thesis, Seoul National University
  2. Anal. Chem. v.35 Silvio Barabas;Peter W. Bennett
  3. Anal. Chem. v.35 P. W. Bennett;S. Barabas
  4. Talanta v.12 R. G. Monk;K. A. Exelby
  5. Talanta v.13 L. Pszonicki
  6. J. Korean Chem. Soc. v.11 Q. Won Choi