我国新疆北部积雪中痕量元素的时空分布及污染评估
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王鑫,王宁练,王俊杰,申保收
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Spatial and temporal distribution of trace elements in the snow cover and pollution assessment in northern Xinjiang
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Xin WANG,Ninglian WANG,Junjie WANG,Baoshou SHEN
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表1 参考物质SLRS-5中痕量元素的测试值与参考值比较
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Table 1 Comparison of test and reference values of trace elements in reference material SLRS-5
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| 元素名称 | 检测限 /(pg·g-1) | 测试值/(ng·g-1) | 参考值/(ng·g-1) |
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| Al | 270 | 53.25±2.67 | 49.5±5.0 | | Fe | 220 | 94.22±4.71 | 91.2±5.8 | | Mn | 0.62 | 4.55±0.23 | 4.33±0.2 | | Sr | 0.14 | 47.04±2.35 | 53.6±1.3 | | Li | 0.56 | 0.38±0.02 | - | | Be | 0.001 | 0.004 | 0.005 | | Cr | 1.94 | 0.22±0.01 | 0.208±0.023 | | Co | 0.22 | 0.05 | 0.05 | | Ni | 1.05 | 0.49±0.02 | 0.476±0.064 | | Cu | 0.14 | 14.72±0.74 | 17.4±1.3 | | Zn | 5.57 | 0.77±0.04 | 0.845±0.095 | | Ga | 0.08 | 0.01 | - | | As | 0.33 | 0.37±0.02 | 0.413±0.039 | | Cd | 0.25 | 0.01 | 0.006 | | Ba | 0.33 | 12.9±0.65 | 14±0.5 | | Pb | 0.21 | 0.09 | 0.081 |
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