【摘要】 <正> 煤是我国的主要能源,时刻有大量废气废渣进入环境中,煤飞灰就是主要污染物之一。它的分析,尤其是测定其中的重金属元素,已成为十分必要。Mills和Belcher曾特别强调ICP-AES法在这类分析中所能起的作用,指出测定大、小量组份的准确度和精度与X-射线荧光法相近。有关煤和飞灰的ICP-AES分析国外已有一些报导,国内则未见有。为制备我国自己的环境标准参考物质82201号煤飞灰样品,我们研究了适合于多元素同时测定的样更多还原

【Abstract】 A method for simultaneous multielement analysis of coal fly ash with a multichannel ICP spectrometer has been developed. The sample was first diggested with mixed nitric, hydrofluoric and perchloric acids in a Teflon lined bomb at 180 ℃ and then the residue was filtered and fused with sodium hydroxide. Solutions containing pure matrix elements and the sample solution were used to investigate spectral interferences with the system’s Polychromator Scan Software. For several trace elements interference correction was indispensable. Results for 17 elements (Al, Ca, Fe, K, Mg, Na, Ti, Ba, Be, Co, Cr, Cu, Mn,Ni, Sr, V and Zn) in the 82201 coal fly ash sample agreed well with those obtained with volumetric, colorimetric, AAs, lCF-AES. NAA and XRF techniques in other laboratories.更多还原