【摘要】 本文研究了各种石墨管的实际应用,提出采用各元素合适的石墨管,用石墨炉和火焰AA.s能直接测定天然环境水和饮用水中痕量Pb Cd Cu Mn Fe和Zn的分析方法。测定检出限为Pb1.5,Cu.2.58,Mn 0.82,Cd 0.055,Fe 17.7,Zn 6.3的PPb。对监控标准水样的测定RSD是0.94～8.06%。应用于监控标准水样中痕量元素的测定其结果与已知值相符,满足天然环境水和饮用水质标准的分析要求。更多还原

【Abstract】 In this paper, a practical application of various graphite tubes has been studied and developed for direct determination and analysis of trace Pb Cd Cu Mn Fe Zn by ZFAAS and ZAAS in natural environment water and drinking water. The detection limit for Pb is 1.5, for Cu, 2.58, for Mn, 0.82, for Cd, 0.055, for Fe, 17.7, for Zn, 6.3.The determinations of standard water samples contralled, RSD, is 0.94～8.06 percent. The results form standard water samples are in agreement with those of certification, which can meet the analysis needs of quality and stadnard for natural environment water and drinking water.更多还原