作者:李明礼1,3, 多吉1,2, 邱衍卿3, 邬国栋3, 王祝3, 旺堆3
作者单位:1. 成都理工大学, 四川 成都 610059;
2. 西藏自治区国土资源厅, 西藏 拉萨 850033;
3. 国土资源部拉萨矿产资源监督检测中心, 西藏 拉萨 850033
关键词:青藏地区; 盐湖表层沉积物; 标准物质; 标准值; 不确定度
摘要:
采集制备青藏地区4个不同类型盐湖表层沉积物标准物质,盐湖卤水化学类型包括硫酸钠亚型、硫酸镁亚型、碳酸盐型以及氯化物型。采用精度相对较高的XRF法进行均匀性检验,统计结果表明样品均匀性良好。通过4个年度5次稳定性考查,结果表明样品具备良好的稳定性。国内11家不同实验室参与定值分析,定值成分38种,提供141个标准值、11个参考值。
Preparation of four salt lake surface sediment reference materials in Qinghai-Tibet area
LI Ming-li1,3, DUO Ji1,2, QIU Yan-qing3, WU Guo-dong3, WANG Zhu3, WANG Dui3
1. Chengdu University of Technology, Chengdu 610059, China;
2. Department of Land and Resources of Tibet Autonomous Region, Lhasa 850033, China;
3. Lhasa Mineral Resources Supervise Test Centre, Ministry of Land and Resources, Lhasa 850033, China
Abstract: Collecting and preparing the Qinghai-Tibet region of 4 different types of sediments of saline lake, standard substance, saline lake water chemistry types including subtype sulfate, magnesium sulfate subtype, carbonate and chloride. The uniformity test was conducted with a relatively extreme accuracy method of the XRF. The statistical results demonstrate that the samples have excellent uniformity. Through 4-year 5-stability test, the statistical results show that the samples have excellent stability. 11 different systems laboratories have participated in the definite value analysis, and 38 components, 141 standard values and 11 reference values were determined.
Keywords: Qinghai-Tibet area; salt lake surface sediment; reference material; certified value; uncertainty
2014, 40(4): 51-55 收稿日期: 2013-8-16;收到修改稿日期: 2013-10-11
基金项目: 国土资源部公益性行业科研专项(201011001-3);西藏自治区重点科研项目(藏科函字[2004]12号)
作者简介: 李明礼(1973-),男,四川剑阁县人,高级工程师,主要从事地质实验测试研究和实验室质量管理工作。
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