原子吸收光谱法测定保护渣中锰含量  

Determination of manganese in mold fluxes by atomic absorption spectroscopy

作　　者：张穗忠[1] 邵梅[1] 李杰[1] 闻向东[1] 

机构地区：[1]武钢研究院,湖北武汉430080

出　　处：《武钢技术》2015年第2期24-25,共2页Wisco Technology

摘　　要：采用原子吸收光谱法测定保护渣中锰含量,进行了酸度对测定的影响、试样分解、共存离子干扰、加标回收、精密度分析等试验。结果表明,锰可完全溶解于混合酸溶液中;加入氯化锶,可以消除钠、钙对锰测定的干扰;锰质量浓度在0~12.0μg/mL的范围,工作曲线线性关系良好;加标回收率较高,在97%~102%;测定结果准确度较高,与高碘酸钠光度法分析结果一致性较好。The content of manganese in mold fluxes was determined by atomic absorption spectroscopy. Effects of acidity on the determination, dissolution of samples, interferes of coexistent ions, recovery of standard addition, precision of the method were tested. Results show that manganese could completely dissolve in the mixed acid solution, adding strontium chloride could eliminate interferes of sodium ions and calcium ions, good linear relation of working curve was shown when the manganese mass concentration was within 0-12. 0μg/mL, recovery rate was high and within 97%-102 %, determination results were high accurate and quite consistent with sodium periodate spectrophotometry results.

关 键 词：保护渣 锰含量 原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]