Application Notes: LC

This report looks at the determination of PAHs in food via LCMS analysis using QuEChERS extraction with isomeric separation in under 8 min using a new HALO® LC column.

This application demonstrates the performance improvement from the HALO® PAH column versus the leading competitor FPP column for the separation of PAH compounds.

This application demonstrates the performance of the new HALO® PAH SPP column in separating the 16 required PAH compounds in the EU 15+1 method in under 10 min.

This application note demonstrates the ability of the new HALO® PAH Fused-Core® HPLC column to perform an EPA 610+2 separation of 18 PAH compounds in 4.5 min.

Doxorubicin is a well-established chemotherapeutic agent frequently used in cancer treatment. Here we present the application of Electrical Asymmetrical Flow Field-Flow Fractionation (AF4) coupled with Multi Angle Light Scattering (MALS) to derive essential physico-chemical parameters, such as size distribution and surface charge, of a commercial liposomal Doxorubicin formulation.

Doxorubicin is a well-established chemotherapeutic agent frequently used in cancer treatment. Here we present the application of Electrical Asymmetrical Flow Field-Flow Fractionation (AF4) coupled with Multi Angle Light Scattering (MALS) to derive essential physico-chemical parameters, such as size distribution and surface charge, of a commercial liposomal Doxorubicin formulation.

• Automated HPLC modeling software can eliminate human error • Assessing the robustness of an analytical method • Getting a 360-degree view into the design space

Production of ethanol from biological sources produces side products, specifically propanol and methanol among other ketones, fatty acids, and esters.

Nine structurally-diverse, strongly basic drug compounds are resolved in less than 2 min using a high pH mobile phase and a fast acetonitrile gradient at 80 °C. 

This application note shows how to obtain a fast separation of cannabidiol and melatonin in a sleeping aid with excellent peak shapes using a YMC-Triart C18 column.

PharmaFluidics introduces a new μPAC capLC column that offers unprecedented performance and that given its low backpressure can be used with flow rates of up to 15μL/min.

PharmaFluidics also offers a 50 cm long μPAC column which is perfectly suited to perform more throughput analyses with shorter gradient solvent times.

Analyzing skin ceramides using PharmaFluidics’ µPAC column technology reveals a substantial structural diversity and isomeric resolved sphingolipids.

Monitoring the excellent separation performance of PharmaFluidics’ µPAC columns by using peptide retention time calibration mixtures for bottom-up proteomics.

PharmaFluidics’ μPAC columns have the potential to be less prone to sample related column failure and to withstand more sample injections without losing performance.

Today’s conference highlights

Click the title above to open the LCGC Europe June 2020 regular issue, Volume 33, Number 6, in an interactive PDF format.

Dow scientists improved their method-development workflow by upgrading their hardware and using specialized software.

PharmaFluidics’ μPAC™ capLC is evaluated for different user needs ranging from 12 samples per day in comprehensive mode to 65 samples per day in throughput mode.

YMC’s latest HIC column is used to analyse the DAR of Brentuximab vedotin allowing higher flow rates and shorter run times thanks to the pressure resistant particle.

The dedicated SEC column for antibodies, YMC-SEC MAB, is used to separate the MAb monomer from its aggregates as well as from degradation products in a single run.

The less hydrophobic wide-pore column YMC-Triart Bio C4 is used for the analysis of modified oligonucleotides due to the hydrophobic character of the disulfide units.

YMC-Triart Bio C4 is used in YMC capillary column format to analyse and identify intact commercial MAbs by micro-LC- MS/MS at an elevated temperature of 75°C.

This application note shows how to achieve narrow peaks and high sensitivity by optimising the AEX separation of phosphorothioate oligonucleotides (PS) in only 5 steps.

In this application note eight intact proteins in the protein mix MSRT2 are analysed by Micro-LC–MS using an YMC-Triart Bio C4 capillary column.

This application note using YMC-Triart Bio C4 shows a robust separation at high temperatures of 3 commercially available MAbs: Ofatumumab, Palivizumab, and Panitumumab.

In this application YMC-Triart Bio C4 was used to analyse a reduced monoclonal antibody and a reduced ADC mimic with formic acid or TFA as additives.