瓦楞纸板中铅、镉、铬元素的AAS测定

Determination of Cd,Cr and Pb in corrugated boards

利用AAS分析技术,对试样分解方法、共存元素干扰、仪器分析参数等因素的研究,确定最佳分析条件,建立了连续测定瓦楞纸板中铅、镉、铬有害、有毒元素的分析方法.结果表明,该方法准确、可靠、快速、简单、操作性强.3种元素的回收率在88%～109%之间,相对标准偏差在1.1%～5.4%之间.

A method for the determination of Cd, Cr and Pb in Corrugated boards was proposed, the analytical lines of determined elements, The operation parameters by AAS, the digestion of samples, the influence of coexisting elements were studied in detail. The expenniment results indicate that the method has the advantages of accuracy, simplicity, and efficiency. The relative standard deviations of the method were 1.1% - 5.4%, and recoveries were 88%- 109%.