High Precision Fractionator for Use with Density Gradient Ultracentrifugation

被引：7
作者：
Kadria-Vili, Yara
Canning, Griffin
Bachilo, Sergei M.
Weisman, R. Bruce [1 ]
机构：
[1] Rice Univ, Dept Chem, Houston, TX 77005 USA
来源：
ANALYTICAL CHEMISTRY | 2014年 / 86卷 / 22期
基金：
美国国家科学基金会;
关键词：
WALLED CARBON NANOTUBES; ELECTRONIC TYPE; ENRICHMENT; DIAMETER;
D O I：
10.1021/ac502365w
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The recent application of density gradient ultracentrifugation (DGU) for structural sorting of single-walled carbon nanotube samples has created a need for highly selective extraction of closely spaced layers formed in the centrifuged tube. We describe a novel computer-controlled device designed for this purpose. Through the use of fine needles, systematic needle motions, and slow flow rates, multiple sample layers can be aspirated under program control with minimal cross contamination between layers. The fractionator's performance is illustrated with DGU-sorted samples of single-walled carbon nanotubes.
引用
收藏
页码：11018 / 11023
页数：6
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