Chinese Journal of Applied Chemistry ›› 1989, Vol. 0 ›› Issue (4): 84-86.

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SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ARSENIC AND ANTIMONY

Qiu Sunqing, Wang Bingwu   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1988-06-29 Revised:1989-01-27 Published:1989-08-10 Online:1989-08-10

Abstract: A simnltaneous spectrophoto metric method for Sb and As determination has been.established. SbH3 and AsH3, produced by addition of a KBH4 tablet to Sb3+ and As3+in tartaric solution,were absorbed by a 95% alcohol solution of Fe3+-1,10 phenathrolineand a mixed solution of AgNO3, PVA and alcohol. The absorbances were measured at 400nm for As and 510nm for Sb. Tolerance levels of various ions were given. The detection limitswere 0.09ppm (3 s) for Sb and 0.05ppm (3 s) for As. The method is simple, rapid, and sensitive.

Key words: Arsenic, Antimony, Microanalysis, Spectrophotometry