抗坏血酸增敏—石墨炉原子吸收光谱法测定痕量铊的方法研究
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焦圣兵, 胡梦颖, 杜雪苗, 徐进力
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The determination of trace thallium in soil by Graphite Furnace Atomic Absorption Spectrometry (GFAAS) using ascorbic acid as a sensitizer
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Sheng-Bing JIAO, Meng-Ying HU, Xue-Miao DU, Jin-Li XU
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表2 8份标准物质样品溶液的Tl含量及其精密度和准确度统计
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Table 2 The precision and accuracy of Tl content of standard substance sample solutions
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样品号 | 标准物质(GBW) | 07103 | 07104 | 07402 | 07446 | 07454 | 07309 | 07310 | 07336 | 1 | 1.75 | 0.17 | 0.51 | 0.56 | 0.50 | 0.46 | 0.19 | 1.16 | 2 | 1.62 | 0.18 | 0.56 | 0.49 | 0.56 | 0.47 | 0.19 | 0.98 | 3 | 1.82 | 0.17 | 0.54 | 0.60 | 0.53 | 0.45 | 0.22 | 0.95 | 4 | 1.54 | 0.16 | 0.54 | 0.50 | 0.63 | 0.41 | 0.18 | 1.06 | 5 | 1.81 | 0.19 | 0.62 | 0.57 | 0.50 | 0.51 | 0.22 | 0.96 | 6 | 1.56 | 0.13 | 0.55 | 0.47 | 0.53 | 0.53 | 0.21 | 1.10 | 7 | 1.71 | 0.22 | 0.58 | 0.55 | 0.61 | 0.47 | 0.19 | 1.13 | 8 | 1.83 | 0.16 | 0.54 | 0.53 | 0.65 | 0.41 | 0.20 | 1.07 | 9 | 1.69 | 0.19 | 0.56 | 0.54 | 0.54 | 0.55 | 0.23 | 0.98 | 10 | 1.95 | 0.14 | 0.60 | 0.49 | 0.59 | 0.52 | 0.19 | 1.00 | 11 | 1.81 | 0.18 | 0.55 | 0.60 | 0.63 | 0.42 | 0.21 | 1.08 | 12 | 1.76 | 0.18 | 0.53 | 0.55 | 0.66 | 0.55 | 0.18 | 1.07 | 平均值 | 1.74 | 0.17 | 0.56 | 0.54 | 0.58 | 0.48 | 0.20 | 1.04 | 标准偏差 | 0.12 | 0.02 | 0.03 | 0.04 | 0.06 | 0.05 | 0.02 | 0.07 | RSD/% | 6.90 | 13.42 | 5.49 | 7.98 | 9.75 | 10.98 | 8.35 | 6.76 | 标准值 | 1.93 | 0.16 | 0.62 | 0.51 | 0.59 | 0.49 | 0.20 | 1.05 | ΔlgC | -0.05 | 0.03 | -0.05 | 0.02 | -0.01 | -0.01 | 0.00 | 0.00 |
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