HPLC分析中的新兴趋势是什么？

自从它的发展高效液相色谱已经站在岩石硬基础上，已经看到了几种创新，符合色谱仪的日益增长的期望。

科学家的一些理想的特征和期望是：

• 具有最低柱压力压力的高分离效率
• 降低溶剂消耗和高速分析
• 低水平的检测和量化
• Separations over wide temperature ranges
• Availability of almost complete pH range for analysis
• 填充柱的更大机械稳健性
• 柱子的寿命更长
• 列的大样本负载能力

It has been possible to achieve the desirable features through several innovations which have made a remarkable contribution to the popularity of the HPLC technique in laboratories across the globe.

Some of the emerging trends are discussed in the present article

固定阶段的进展

固定相位特性是通过高效液相色谱法有助于有效分离混合物组分的主要决定因素。基于二氧化硅的柱是主要用于大部分分离的一天。然而，最近开发的包装材料已经开辟了新的应用领域。提供的优势core-shell packings那单片填料那andzirconia packings已经在早期的文章中讨论过。

Ultra Pressure Liquid Chromatography (UPLC)

柱效随粒径的降低而增加。2003年引入了亚2μm粒子尺寸，并为快速分离铺平了道路。可以减少柱长和直径，以提供更快的敏感性的分离。小尺寸粒子造成柱背压增加的问题，可以通过仪器的进步来克服，以允许在高压下进行操作。

纳米孔和微生物高效液相色谱

分析of limited amounts of samples has always posed a challenge. Nano bore High-Performance Liquid Chromatography offers solutions to allow femtomole levels with the good quality resolution for reliable identification and quantification. Nano columns have id’s as small as 75 μm and flow rates up to 300 nL/ minute are used in nano bore applications.

微孔HPLC柱具有约1mm的id，每分钟50-75μl的流速。纳米孔和微磁柱两者都已经用于它们的全部电位，具有质谱检测系统，特别是在生物基质中的肽分析中。

Hyphenated LC techniques

已经开发了几种连字符，例如LC-MS，LC-FTIR，LC-AA，但是LC-MS已经大大应用于一种分离和定量复杂分子的分离，特别是在生物分析分离中。

Fast Protein liquid chromatography

该模式在蛋白质的纯化方面具有主要应用。它具有毫克尺度的巨大尺度分离。分离和分离基于树脂和蛋白质之间的电荷分离。洗脱基于缓冲液组合物的变异。

亲和层析

亲和层析has potential in the separation of biochemical molecules such as nucleic acids and protein purification in biological fluids such as blood. It is based on interactions between antigen-antibody, enzyme and substrate or receptor, and ligand.

Chiral chromatography

Developments in stereo active column packings mainly polysaccharide derivatives like cellulose, amylase, and cyclodextrin have been used for a wide range of optically active molecules. In earlier days separation of such molecules was not possible using conventional separation modes.

简要介绍了近期高性能液相色谱技术的创新趋势。请分享您的意见并留下关于本文的建议。