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1)  geochemical reference sample
地球化学参照样品
2)  geochemical samples
地球化学样品
1.
Determination of vanadium and chromium in geochemical samples by inductively coupled plasma mass spectrometry with collision cell technology
碰撞池-电感耦合等离子体质谱法测定地球化学样品中钒和铬
2.
The geochemical samples were prepared by decomposding with the mixture of HF-HCl-HNO3-HClO4,and then dissolving the residue with 8%(V/V)HNO3.
水系沉积物、土壤等试样用HF-HCl-HNO3-HClO4混酸消解后,以8%(V/V)HNO3溶解干渣,建立了测定地球化学样品中La,Y,Ba 3种微量元素的电感耦合等离子体发射光谱(ICP-OES)方法。
3.
In this thesis, a sequential partial dissolution technique was developed to partition selenium speciation in geochemical samples into association with “operationally” defined phases .
研究开发了一种硒的循序偏提取步骤,将地球化学样品中的硒选择性地循序提取到六个“操作上”定义的相态中:水溶性硒(水提取);吸附在氧化矿物和粘土矿物上配位可交换的亚硒酸根离子(0。
3)  geochemical sample
地球化学样品
1.
Design and realization of quality control system of geochemical sample analysis;
地球化学样品分析质量控制系统设计与实现
2.
A method for the direct determination of tellurium in geochemical samples by hydride generation-atomic fluorescence spectrometry(HGAFS) was established.
采用硝酸-氢氟酸-高氯酸溶解样品,以Fe3+作减缓剂,不需分离富集,用氢化物发生-原子荧光光谱法直接测定地球化学样品中痕量碲。
3.
According to the bottom drill electrode powder emission spectra method,Ag、B、Sn in the geochemical samples can be measured directly,which appears to be rapid and excellent in reproduction quality,fits for the samples of high Ca、Fe and organism.
采用底部钻孔电极粉末发射光谱法直接测定地球化学样品中银、硼、锡,方法快速、重现性好,适应于基体中钙、铁和有机质较高的样品,经与富含钙铁标准物质数据比较,结果相吻合。
4)  geochemical exploration sample
勘查地球化学样品
1.
A method for the determination of ultratrace gold in geochemical exploration samples by graphite furnace atomic absorption spectrometry after preconcentration with polyurethane foam has been developed.
介绍了在Fe3+存在下于φ为5%~10%王水中用泡沫塑料吸附Au,12g/L硫脲溶液解脱,以抗坏血酸作为基体改进剂,采用最大功率升温和长寿命石墨管技术进行勘查地球化学样品中超痕量金的石墨炉原子吸收光谱测定方法。
2.
A method for the determination of silver,boron,tin,molybdenum and lead in geochemical exploration samples by emission spectrometry is developed.
以K2S2O7、NaF、A l2O3和炭粉为缓冲剂,Ge为内标,电弧发射光谱法测定勘查地球化学样品中Ag、B、Sn、Mo、Pb。
5)  regional geochemical sample analysis
区域地球化学样品分析
6)  samples in regional geochemical survey
区域地球化学调查样品
1.
In this paper, the defects of the old quality control method for the analysis of samples in regional geochemical survey are discussed and a new quality control method, which is based on the laboratory internal quality control and the external quality control, was proposed.
分析了区域地球化学调查样品分析中原有的质量控制方法的不足,提出了采用实验室内部自我质量控制和实验室外部质量控制相结合的方法。
补充资料:基岩地球化学测量
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性质:以基岩为采样对象所进行的地球化学勘查工作。又称岩石地球化学测量(rock geochemical survey)。简称基岩测量。通过系统采集基岩样品,分析有关元素的含量或其他地球化学指标,发现异常,以达到资源勘查或其他目的的地球化学方法。其依据是基岩(岩石)中广泛存在的地球化学背景和地球化学异常。基岩测量的工作方法是灵活多样的,可以在大面积上进行路线测量或稀疏网格采样,也可以在坑道或钻孔中进行高密度采样,取决于工作任务和露头分布状况。它可在划分地球化学省,圈定元素的区域高背景带或贫化带,为区域成矿预测或环境评价提供依据;评价侵入岩体或火山岩系的含矿性;追索断裂构造并评价其含矿性;寻找基岩中的育矿体或在坑道和钻孔中发现近旁的矿体,预测地表矿体的剥蚀程度;以及检查或追索其他地球化学方法发现的异常等,都能发挥重要的作用。

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