Online SPE and HPLC in one
Spark Holland Product Profile
The Spark Holland Symbiosis™ Pico is a compact, affordable and versatile online SPE System embedded in a high-end HPLC system offering superb analytical performance and improved workflow. The system features a fully programmable high performance injector which handles sample volumes from 10μl up to 10ml, adding, mixing and diluting samples prior to analysis. The high pressure gradient LC pump comes with a four channel solvent selector for each pump, facilitating the use of multiple LC solvents and gradients. Combined with the optional column oven with integrated six port LC column selector, a large variety of LC conditions can be selected in consecutive unattended runs, giving the highest degree of flexibility both for method development and routine use. In addition, Symbiosis Pico has an integrated sample preparation system that offers all the advantages of online SPE, such as higher assay sensitivity, analysis of small sample injection volumes, no sample loss, minimal carry-over and robust and reproducible assays, while reducing method development time. The new multi dimensional SPE mode allows the use of two different extraction mechanisms on two separate disposable SPE cartridges in one sample run, resulting in the highest possible sample clean up.
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The Complexity of Oligonucleotide Separations
January 9th 2025Peter 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.
Metabolomics Analysis of Low Birth-Weight Infants Using UHPLC-MS/MS Following Lipid Emulsion
January 10th 2025A recent study aimed to directly compare the changes in serum metabolites among very low birth-rate (VLBW) infants following the administration of the soybean oil-based lipid emulsion and soybean oil, medium-chain triglycerides, olive oil, and fish oil (SMOF) lipid emulsion using untargeted metabolomics techniques.
Analyzing New Drug Modalities: An ISC 2024 Interview with Kelly Zhang
January 10th 2025At ISC 2024 in Liverpool, United Kingdom, LCGC International interviewed Kelly Zhang of Genentech about her work analyzing new drug modalities, such as mRNA, oligonucleotides, peptides, and cell and gene therapies.
