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为考察不同色谱条件下氧化型谷胱甘肽二钠及有关物质的色谱行为,建立了氧化型谷胱甘肽二钠有关物质及含量测定的高效液相色谱分析方法,固定相为Zorbax XB—C18(4.6mm×250mm,5μm);流动相为V(0.006mol/L辛烷磺酸钠)+y(甲醇)=95+5;检测波长为210nm,柱温30℃。结果表明,氧化型谷胱甘肽二钠的线性范围为0.5~10μg,r=0.9999,总有关物质含量小于1.2%。此法简单,分离度良好,结果准确,可以用于氧化型谷胱甘肽二钠的含量测定和有关物质的检测。 相似文献
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On the basis of first-principles density functional calculations, the present study sheds theoretical insight on ultrathin carbon nanotube (UCNT) and hydrogenated ultrathin carbon nanotube (HUCNT) for use as potential materials not only for Li-ion battery anode but also for high-capacity hydrogen storage. The highest Li storage capacities in UCNT and HUCNT can be of LiC4 and LiC4H2, respectively, which are higher than that in graphite and LiC6. Binding between Li (Ca) atoms and these materials are found to be enhanced considerably. Each Li (Ca) atom may bind multi-hydrogen molecules, and the adsorption energies are ideally suited for storing hydrogen under ambient conditions, and the predicted weight percentage of molecular hydrogen are in the range of 6.4-12 wt% exceeding the target set by the United States Department of Energy. 相似文献
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