磷酸三丁酯三苯基膦醋酸纤维富集-等离子体发射光谱法测定地质样品中的痕量金银

收稿日期: 2008-12-11

修回日期: 2009-03-10

刊出日期: 2009-08-28

Determination of Trace Gold and Silver in Geological Samples by ICP-AES after Separation and Preconcentration with Tributyl Phosphate Triphenyl Phosphine Acetic Cellulose

Received Date: 11 December 2008

Revised Date: 10 March 2009

Publish Date: 28 August 2009

摘要: 地质样品经王水分解后，在一定浓度的王水和盐酸介质中，以磷酸三丁酯三苯基膦醋酸纤维富集金银，用20 g/L硫脲溶液解脱，采用等离子体发射光谱法测定，金、银的回收率为98%～101%，方法检出限金为0.001μg/g，银为0.001μg/g
- 金； /
- 银； /
- 富集； /
- 等离子体发射光谱法； /
- 磷酸三丁酯三苯基膦醋酸纤维； /
- 地质样品
Abstract: In this paper a method for separation and preconcentration of trace gold and silver in geological samples with tributyl phosphate （TBP） triphenyl phosphine (TPP) acetic cellulose is developed. The sample was digested with aqua regia and Au and Ag in the sample solution were preconcentrated with tributyl phosphate triphenyl phosphine acetic cellulose in medium of aqua regiaHCl. After eluting with thiourea solution (20 g/L), Au and Ag were determined by inductively coupled plamasatomic emission spectrometry(ICP-AES). Detection limits of the method are 0.001 μg/gwith recovery of 98%~101% for both Au and Ag.
- gold； /
- silver； /
- perconcentration； /
- inductively /
- coupled