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火焰原子吸收法测定铁合金中痕量钴
Determination or Microamount Cobalt in Ferrosilicon by Flame Atomic Absorption Spectrometry
【摘要】 在pH2的盐酸介质中,以丙酮为增敏剂,以磺基水杨酸抑制钙与铁的干扰,采用火焰原子吸收法测定硅铁合金中痕量钴。钻的浓度在0~16μg/mL范围内符合比尔定律。方法相对标准偏差RSD=2.1%,回收率为99%-102%,样品测定结果令人满意。
【Abstract】 The determination of microamount cobalt in ferrosilicon was carried out by FAAS. In the medium of pH2 chlorohydric acid the sensitivity can be increased by acetone. Sulfosalicylic acid can decrease the interference of the coexist elements in ferrosilicon. The linear range is 0-16μgCo2+/mL; the recovery is from 99%-102% and RSD is 2.1%. The method has been applied to the determination of microamount cobalt in ferrosilicon with satisfactory results.
- 【文献出处】 冶金分析 ,METALLURGICAL ANALYSIS , 编辑部邮箱 ,1999年06期
- 【分类号】TG115
- 【被引频次】5
- 【下载频次】43