分析试验室
分析試驗室
분석시험실
ANALYTICAL LABORATORY
2009年
12期
1-4
,共4页
硅胶整体柱%多壁碳纳米管%正相液相色谱
硅膠整體柱%多壁碳納米管%正相液相色譜
규효정체주%다벽탄납미관%정상액상색보
Mooolithic silica column%Multi-walled carbon nanotubes%Normal-phase chromatography
制备了一种新的含多壁碳纳米管的硅胶整体柱,并用扫描电子显微镜和比表面积测试仪对其进行了表征.利用正己烷为流动相,考察了该整体柱的流速与渗透率和流速与柱压降的关系,以及苯取代化合物在该整体柱上的色谱保留行为,并对其在分离过程中的作用机理进行了探讨.
製備瞭一種新的含多壁碳納米管的硅膠整體柱,併用掃描電子顯微鏡和比錶麵積測試儀對其進行瞭錶徵.利用正己烷為流動相,攷察瞭該整體柱的流速與滲透率和流速與柱壓降的關繫,以及苯取代化閤物在該整體柱上的色譜保留行為,併對其在分離過程中的作用機理進行瞭探討.
제비료일충신적함다벽탄납미관적규효정체주,병용소묘전자현미경화비표면적측시의대기진행료표정.이용정기완위류동상,고찰료해정체주적류속여삼투솔화류속여주압강적관계,이급분취대화합물재해정체주상적색보보류행위,병대기재분리과정중적작용궤리진행료탐토.
In this paper, a multi-walled carbon nanotubes-contained silica monohth was prepared as the promising candidate for HPLC separations. Characterization of the prepared multi-walled carbon nanotubes-contained silica mono-lith was performed with scanning electron microscopy and surface area machine. Its chromatographic properties were evaluated by using toluene and phenol as samples while n-hexane as the mobile phase. Permeability and column pres-sure drop were evaluated for separation, and the possible separation mechanism was also investigated in the paper. The results showed that the multi-walled carbon nanotubes-contained silica monolith had characters of high permeability, high mechanical strength, good chemical stability and stroog absorption capability.
