Onianwa P C
Int J Environ Anal Chem. 1987;28(3):237-46. doi: 10.1080/03067318708081865.
Heavy metal contents of mosses are usually determined routinely for pollution studies, by atomic absorption spectroscopy. Results obtained from a such study are here compared with levels obtained from a comparative determination of the metals in the mosses by three other techniques: Differential pulse anodic stripping voltammetry (DPASV), Direct current plasma (atomic emission) spectroscopy (DCPS) and X-ray fluorescence (XRF) spectroscopy. The levels of Pb, Cu and Cd determined by DPASV did not differ significantly from those obtained from AAS. Metal levels from DCPS analyses tended to be significantly higher than the AAS values. Although the XRF values were slightly higher than those of AAS for Pb and Zn, the differences were statistically insignificant. The implication of these trends in comparing the extents of pollution in different regions, is highlighted.
苔藓中的重金属含量通常通过原子吸收光谱法常规测定，用于污染研究。本文将此类研究获得的结果与通过其他三种技术（差分脉冲阳极溶出伏安法（DPASV）、直流等离子体（原子发射）光谱法（DCPS）和X射线荧光（XRF）光谱法）对苔藓中的金属进行比较测定所获得的水平进行了比较。DPASV测定的Pb、Cu和Cd水平与AAS获得的水平没有显著差异。DCPS分析的金属水平往往显著高于AAS值。尽管Pb和Zn的XRF值略高于AAS值，但差异无统计学意义。文中强调了这些趋势在比较不同地区污染程度方面的意义。
