Vol 12 No 9 The Column May 24, 2016 North American PDF

Waters Corporation recently announced two new columns to their MaxPeak Premier Reversed-Phase Column portfolio during the conference in Washington, DC.

In this podcast, Daniel DeBord, CTO of MOBILion Systems, describes a new high resolution mass spectrometry approach that promises to increase speed and sensitivity in omics applications. MOBILion recently introduced the PAMAF mode of operation, which stands for parallel accumulation with mobility aligned fragmentation. It substantially increases the fraction of ions used for mass spectrometry analysis by replacing the functionality of the quadrupole with high resolution ion mobility. Listen to learn more about this exciting new development.

“Forever chemicals” per- and polyfluoroalkyl substances (PFAS) have been found in smartwatch and fitness bands and analyzed using liquid chromatography tandem mass spectrometry (LC–MS/MS) and direct total oxidative precursor (dTOP) assay.

Peter Pellegrinelli, Applications Specialist at Advanced Materials Technology (AMT) explains the complexity of oligonucleotide separations due to the unique chemical properties of these molecules. Issues such as varying length, sequence complexity, and hydrophilic-hydrophobic characteristics make efficient separations difficult. Separation scientists are addressing these challenges by modifying mobile phase compositions, using varying ion-pairing reagents, and exploring alternative separation modes like HILIC and ion-exchange chromatography. Due to these complexities, AMT has introduced the HALO® OLIGO column, which offers high-resolution, fast separations through its innovative Fused-Core® technology and high pH stability. Alongside explaining the new column, Peter looks to the future of these separations and what is next to come.

Fully automated method for 3-MCPD and Glycidol determination in edible oil by GC-MS, based on the widely used methods ISO 18363-1, AOCS Cd 29c-13, and DGF C-VI 18 (10). The automated GC-MS determination of 3-MCPD and glycidol in edible oils with evaporation step and GC column backflush ensures low LODs by eliminating excess derivatization reagent for improved method stability and system ruggedness.

Fully automated method for 3-MCPD, 2-MCPD and Glycidol determination in Edible Oil and Fat based on ISO 18363-4 - Zwagerman/Overman with validation data. A recent upgrade to PTV injection has further improved the quality and robustness of results. Fatty acid esters of 3- and 2-monochloropropanediol (3-MCPD-e, 2-MCPD-e) and glycidol (Gly-e) are process contaminants that are formed, for example, when edible oils and fats are refined. After ester cleavage during digestion in the human body they pose a relevant health risk and therefore need to be determined in edible oils and fats and in fat containing food.