Distributions of Major-to-Ultratrace Elements among the Particulate and Dissolved Fractions in Natural Water as Studied by ICP-AES and ICP-MS after Sequential Fractionation
Distributions of Major-to-Ultratrace Elements among the Particulate and Dissolved Fractions in Natural Water as Studied by ICP-AES and ICP-MS after Sequential Fractionation
复制标题
连续分馏后 ICP-AES 和 ICP-MS 研究天然水中颗粒和溶解组分中主要至超微量元素的分布
作者：
A. Itoh;Taisuke Nagasawa;Yanbei Zhu;Kyue;E. Fujimori;H. Haraguchi
为了阐明池塘水中颗粒和溶解组分中元素的分布，通过电感耦合等离子体原子发射光谱法（ICP-AES）和电感耦合等离子体质谱法（ICP-MS）测定了不同粒径颗粒以及通过0.05 µm过滤器的滤液中的主要至超痕量元素。不同尺寸的颗粒样品（约100 - 300 µg）分别收集在孔径分别为10、3.0、1.2、0.4、0.2和0.05 µm的膜滤器上，通过连续分馏。结果表明，样品经HNO_3/HF/HClO_4酸消解后，用ICP-AES和ICP-MS可同时测定40多种不同粒度的元素。然后，从分析结果中估计了主要到超痕量元素在颗粒和溶解组分中的分数分配因子。颗粒部分（大于0.05 µm）中Al、Fe、Ti、REEs（稀土元素）、Bi、Pb和Ag的总含量大于80 - 90%，而溶解部分（相当于通过0.05 µm膜过滤器的滤液）中Ca、Sr、Cs、W、Ba、Mn和Co的总含量大于80%。Cu和Zn在溶解态中的分数分布呈近似正态分布。百分之五十此外，还估算了3.0 - 10 μm和0.05 - 0.2 μm颗粒组分中元素的富集因子，以阐明其在天然水体中的地球化学特征。
In order to elucidate the distributions of the elements among the particulate and dissolved fractions in pond water, major-to-ultratrace elements in different sizes of particles as well as in the filtrate passed through the 0.05 µm filter were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS). The different sizes of particle samples ( ca . 100 - 300 µg each) were collected on the membrane filters with pore sizes of 10, 3.0, 1.2, 0.4, 0.2 and 0.05 µm, respectively, by sequential fractionation. As a result, about 40 elements in different sizes of particles could be determined by ICP-AES and ICP-MS, after acid digestion using HNO_3/HF/HClO_4. Then, the fractional distribution factors of major-to-ultratrace elements among the particulate and dissolved fractions were estimated from the analytical results. The total contents of Al, Fe, Ti, REEs (rare earth elements), Bi, Pb and Ag in the particulate fractions (larger than 0.05 µm) were more than 80 - 90%, while those of Ca, Sr, Cs, W, Ba, Mn and Co in the dissolved fraction, which corresponded to the filtrate passed through the 0.05 µm membrane filter, were more than 80%. It was further found that the fractional distributions of Cu and Zn in the dissolved fraction were ca . 50%. In addition, the enrichment factors (EFs) of the elements in the particulate fractions with particle sizes of 3.0 - 10 µm and 0.05 - 0.2 µm were estimated to elucidate their geochemical characteristics in natural water.
用等离子体质谱法进行元素形态分析。
影响因子：
7.4
作者：
Vela,NP;Olson,LK;Caruso,JA
通讯作者：
Caruso,JA