[Determination of Hg and As in crude antimony trioxide by microwave process system and ICP-AES].

[Determination of Hg and As in crude antimony trioxide by microwave process system and ICP-AES].

Guang pu xue yu guang pu fen xi = Guang pu (2003-09-05)

Y Zhong, H He, Q Zhang

ABSTRACT

An ICP-AES method was established for the simultaneous determination of Hg and As in crude antimony trioxide. The samples with different grades were digested in hydrochloric acid-tartraic acid-potassium chloride using microwave process system. The method is applied to analyze crude antimony trioxide with RSD% of 0.87%-3.2% for Hg, 1.3%-2.9% for As, and recovery of 90%-107%

MATERIALS

Product Number

Brand

Product Description

379255

Sigma-Aldrich

Antimony(III) oxide, 99.99% trace metals basis

230898

Sigma-Aldrich

Antimony(III) oxide, powder, 5 μm, ReagentPlus^®, 99%

202649

Sigma-Aldrich

Antimony(III) oxide, 99.999% trace metals basis

637173

Sigma-Aldrich

Antimony(III) oxide, nanopowder, <250 nm particle size (TEM), ≥99.9% trace metals basis