用胺装饰的可重复使用的C18柱,用于快速,高效和顺序地分离类物质,使用反向相位高性能液态色谱
Aswanidevi Kongasseri1, Thirumalai Madhesan1, Sangeetha Krishna Kumar1
1Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India.
Journal of chromatography. A
|November 19, 2023
概括
这项研究开发了一种快速逆相高性能液态染色学 (RP-HPLC) 方法,用于使用修改的C18柱分离三价兰坦化物. 最优化的方法通过调整两三胺修饰剂,在12分钟内实现了系统分离.
科学领域:
- 分析化学 分析化学
- 分离科学 分离科学
- 协调化学 协调化学
背景情况:
- 兰化物分离对于各种应用至关重要,包括核废物管理和稀土元素回收.
- 传统的化物分离方法可能耗时且复杂.
- 开发高效的色谱技术来分离兰他尼德是目前正在进行的研究领域.
研究的目的:
- 开发一种快速高效的逆相高性能液态染色法 (RP-HPLC) 方法,用于三价兰坦化物 (Ln3+) 的顺序分离.
- 调查使用新型两芳香三胺衍生物作为列修饰剂用于增强分离.
- 优化染色学参数,以实现系统和及时分离兰他诺基.
主要方法:
- 使用了经过修改的C18包装支,其功能与合成的两芳香三胺衍生物 (hexa(alkyl) benzene-1,3,5-tricarboxamides) 相结合.
- 采用逆相高性能液态染色学 (RP-HPLC) 用α-基酸 (HIBA) 作为移动相.
- 使用Arsenazo (III) 的后列衍生和655 nm的紫外线可见检测量定量分离的兰他.
主要成果:
- 在12分钟内实现了三价兰坦化物的系统分离.
- 确定了最佳的列修饰剂 (六乙-1,3,5-三胺和六乙-1,3,5-三胺) 和它们的度,以实现出色的分离.
- 证明了修饰剂链长度,度,移动相组成和pH对分离效率的影响.
结论:
- 使用修改后的C18柱开发的RP-HPLC方法为化物分离提供了快速有效的方法.
- 调整疏水链长度和三胺修饰剂度是优化分离的关键.
- 这种技术为顺序分离和定量兰他诺酸提供了一个有前途的替代方案.
相关概念视频
High-Performance Liquid Chromatography: Introduction
2.1K
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process:
2.1K
High-Performance Liquid Chromatography: Elution Process
496
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
496
High-Performance Liquid Chromatography: Instrumentation
1.9K
High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
1.9K
Silica Gel Column Chromatography: Overview
1.2K
Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
1.2K
Size-Exclusion Chromatography
611
In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
Silica particles offer advantages such as rigidity,...
Silica particles offer advantages such as rigidity,...
611
Gas Chromatography: Types of Columns and Stationary Phases
677
Gas chromatography (GC) relies on stationary phases to separate and analyze components in a sample. There are two main types of stationary phases: liquid and solid. Liquid stationary phases are non-volatile, thermally stable, and chemically inert liquids coated onto the column. Solid stationary phases are particles of adsorbent material, such as silica gel or molecular sieves.
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...
677


