Synthesis of Cross-Linked Chitosan Resin Possessing Leucine Moiety for the Column Collection/Concentration of Molybdenum and Determination of Molybdenum by ICP-MS, ICP-AES and GFAAS
Synthesis of Cross-Linked Chitosan Resin Possessing Leucine Moiety for the Column Collection/Concentration of Molybdenum and Determination of Molybdenum by ICP-MS, ICP-AES and GFAAS
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具有亮氨酸部分的交联壳聚糖树脂的合成，用于钼的柱收集/浓缩，并通过 ICP-MS、ICP-AES 和 GFAAS 测定钼
DOI：
10.1246/bcsj.76.1555
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发表时间：
2003
影响因子：
4
通讯作者：
S. Motomizu
中科院分区：
文献类型：
--
作者：
K. Oshita;Jing;Yun;Kyue;M. Oshima;S. Motomizu
以乙二醇二缩水甘油醚（EGDE）交联壳聚糖为原料，合成了一种含亮氨酸结构的壳聚糖树脂（亮氨酸型壳聚糖）。采用电感耦合等离子体质谱法（ICP-MS）系统研究了亮氨酸型壳聚糖对痕量金属离子的吸附行为。钼定量吸附在树脂上，很容易用1 M硝酸洗脱。最佳pH值范围为1 ~ 5，钼离子通过螯合和/或阴离子交换两种方式被富集。方法已用于海水和河水中钼的测定。用树脂预处理可以去除海水中的基质成分。采用柱前富集100倍，使富集后的样品达到电感耦合等离子体原子发射光谱法（ICP-AES）和石墨炉原子吸收法（GFAAS）测定河水中痕量钼的要求。
A chitosan resin possessing the leucine moiety (leucine-type chitosan) was newly synthesized by using the chitosan cross-linked with ethylene glycol diglycidyl ether (EGDE) as a basic material. The adsorption behavior of trace amounts of metal ions on the leucine-type chitosan was systematically examined by packing it in a mini-column by ICP-MS (inductively coupled plasma mass spectrometry). Molybdenum was adsorbed on the resin quantitatively and was easily eluted with 1 M nitric acid. The optimized pH range was from 1 to 5, and Mo was collected by the chelation mechanism and/or the anion-exchange mechanism. The method was applied to the determination of Mo in sea and river water samples. A pretreatment with the resin could remove the matrix components in seawater. Preconcentration by 100-fold was accomplished by a column treatment, which had a sufficient concentration to measure trace Mo in river water samples by ICP-AES (inductively coupled plasma atomic emission spectrometry) and GFAAS (graphite furnac...
影响因子：
4
作者：
T. Yabutani;K. Chiba;H. Haraguchi
通讯作者：
T. Yabutani;K. Chiba;H. Haraguchi