GPC/SEC Tips & Tricks: Improving the Reliability of GPC/SEC Light-Scattering and Viscometry Results
On-line light scattering and viscometer detectors increase the information depth of GPC/SEC data and allow absolute molar masses and structures to be measured.
On-line light scattering and viscometer detectors increase the information depth of GPC/SEC data and allow absolute molar masses and structures to be measured. However, even a set-up with advanced instrumentation is not parameter free and the inter-lab comparison of results is often sobering. Sometimes even the comparison of inter-lab results or the reproducibility is not acceptable. In most instances the reason for these deviations can be related to a wrong determination of the slice concentration. In contrast to conventional GPC/SEC, hyphenation with molar mass sensitive detection requires the precise and accurate knowledge of the mass in every chromatographic slice
Determining the Effects of ‘Quantitative Marinating’ on Crayfish Meat with HS-GC-IMS
April 30th 2025A novel method called quantitative marinating (QM) was developed to reduce industrial waste during the processing of crayfish meat, with the taste, flavor, and aroma of crayfish meat processed by various techniques investigated. Headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) was used to determine volatile compounds of meat examined.
