内蒙古巴彦淖尔市临河区富硒耕地硒形态特征及其影响因素
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李世宝, 杨立国, 熊万里, 马志超, 袁宏伟, 段吉学
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Speciation of selenium in the selenium-rich cultivated land in Linhe District, Bayannur City, Inner Mongolia and its influencing factors
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LI Shi-Bao, YANG Li-Guo, XIONG Wan-Li, MA Zhi-Chao, YUAN Hong-Wei, DUAN Ji-Xue
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表1 各指标分析方法的准确度与精密度
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Table 1 Accuracy and precision for analysis method of various indicators
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指标 | 分析方法 | 要求检出限 | 检出限 | 单位 | 准确度合格率 | 精密度合格率 | 水溶态 | ICP-MS | 0.0050 | 0.0050 | 10-6 | 100% | 100% | 离子交换态 | ICP-MS | 0.0100 | 0.0096 | 10-6 | 100% | 100% | 碳酸盐结合态 | ICP-MS | 0.0050 | 0.0048 | 10-6 | 100% | 100% | 铁锰结合态 | ICP-MS | 0.0100 | 0.0099 | 10-6 | 100% | 100% | 强有机结合态 | ICP-MS | 0.0050 | 0.0046 | 10-6 | 100% | 100% | 腐植酸结合态 | ICP-MS | 0.0050 | 0.0049 | 10-6 | 100% | 100% | 残渣态 | ICP-MS | 0.0100 | 0.0100 | 10-6 | 100% | 100% | 全量Se | HG-AFS | 0.01 | 0.01 | 10-6 | 100% | 100% | Corg. | VOL | 0.10 | 0.05 | % | 100% | 100% | 氧化还原电位 | 电位法 | 0.10 | 0.05 | mV | 100% | 100% | CEC | VOL | 0.25 | 0.25 | cmol/kg | 100% | 100% | pH | ISE | 0.10 | 0.10 | 无量纲 | 100% | 100% |
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