Multi-angle light scattering (MALS) is primarily used to determine molecular weight, size-and shape-related parameters of macromolecules or nanoparticles as they elute from a separation device. In batch (unfractionated) mode, MALS provides the weight-average molecular weight wand the z-average mean square radius z. The DAWNHELEOSIIis particularly well suited for these tasks owing to its flow cell design, holding a mere ~67µl and readily connecting toa fluid line through HPLC-type fittings.
Justin Miller-Schulze and Smith Purdum explain how machine learning and chemometrics can improve fire debris classification in forensic science applications.
This week, the Chromatography Online website observed National Forensic Science Week with expert interviews on how chromatography helps solve cases, plus career stories from women in analytical science and new research on detecting rat poison in cats and tracking mold toxins in gluten-free pasta.
Kinjal Bhatt argues inclusion advocacy shouldn't fall on women alone, while Ina Varfaj credits sharing the load and learning to say no for avoiding burnout.
Steven Ray Wilson defines organ-on-a-chip as organoids on microfluidic devices, tracing their small, complex samples to the case for automated online LC–MS.