Thermal gradient interaction chromatography

Recently, possibilities appeared with the results from thermal gradient interaction chromatography (TGIC) [3]. That method has a much better resolution than SEC and allows a very precise determination of Ip. It is even possible to use it for a preparative scale to obtain extremely narrow standards, but, until now, it is only available for organic-soluble standards. 

Thermal gradient interaction chromatography (TGIC), with same type of columns as with SGIC, has been shown to be a very attractive variation because of easier detection by IR and the possible use of integrated in-line molar mass detectors. 

Cong et al (2012) Determination of the microstructure of polyolefins using thermal gradient interaction chromatography and its hyphenated techniques. In Proceedings 4th international conference on polyolefin characterization, Houston, October 2012... 

However it differs from chromatography in one fundamental respect — separation is induced by an external field or gradient such as an electrical or magnetic field or a thermal gradient instead of interaction with a stationary phase. ... 

---