Gel permeation chromatography (GPC) has become the most widely used technique for analyzing polymer samples in order to determine their molecular weights and weight distributions. Examples of GPC chromatograms of polystyrene samples with their molecular weights and dispersities are shown on the left.

2024年6月19日 · 凝胶渗透色谱 (GelPermeationChromatography，简称: GPC)一种快速而又简单的分离分析技术，由于设备简单、操作方便，不需要有机溶剂，对高分子物质有很高的分离效果。 不仅可用于小分子物质的分离和鉴定，而且可以用来分析化学性质相同分子体积不同的高分子同系物。 (聚合物在分离柱上按分子流体力学体积大小被分离开）。 当被分析的试样随着淋洗溶剂引入柱子后，溶质分子即向填料内部孔洞扩散。 较小的分子除了能进入大的孔外，还能进入较小 …

techniques and applications of gel permeation chromatography, also known as size exclusion chromatography (GPC/SEC), for anyone not familiar with the equipment and methods used in this

对于gpc的数据的测试结果来说，并不是单一的出一个分子量是多少多少的数据，而常常有很多种数据，比如数均分子量，重均分子量，峰值分子量等等很多个，到底哪个才是分子量结果？

Gel permeation chromatography (GPC) is a type of size exclusion chromatography (SEC). It is mainly used to measure the molecular weight of polymer compounds. The molecular weight distribution shows how much molecular weight contains in a sample, and it is widely used for quality control to know the difference in the properties of polymer compounds.

GPC/SEC 测定的平均分子量和Mp SEC是唯一一种在测定聚合物整体分布时，能同时测定Mn、Mw、Mz和Mz+1的技术。 SEC也可以对另一种平均分子量Mp进行计算，峰分子量Mp定义如下 Mp=最高峰的分子量 因此，Mp也是分子量分布的一种表达方式。

2023年4月20日 · This post will discuss the three most common GPC/SEC data analysis methods (all available with OMNISEC!): conventional calibration, universal calibration, and multi-detection with light scattering. For a video presentation that includes the following material (and more!) please see my Introduction to GPC/SEC in 30 minutes video.

2009年1月1日 · Gel permeation chromatography (GPC), also referred to as gel filtration chromatography (GFC) or size-exclusion chromatography (SEC), is a well established liquid...

Gel Permeation Chromatography (GPC), also known as Size Exclusion Chromatography (SEC), is a technique used to determine the average molecular weight distribution of a polymer sample. Using the appropriate detectors and analysis procedure it is also possible to obtain qualitative information on long chain branching or determine the composition ...

Gel Permeation Chromatography (GPC), also called Size Exclusion Chromatography (SEC) or Gel Filtration Chromatography (GFC), is the primary method of determining a sample’s molecular weight distribution. GPC columns are filled with porous beads of a well-defined pore diameter and large pore volume.