Develop PFAS methods in seconds with Restek’s unique Pro EZLC Chromatogram Modeler. This powerful modeling tool is completely free and has a library of dozens of PFAS compounds that you can use to develop methods, reduce run times, and optimize run conditions.
Aroma analysis is of paramount importance in the plant-based meat replacement industry. The ability to replicate flavors and mimic real meat is vital in appealing to consumers. To capture the full aroma profiles of cooked meat, analysts need dynamic purge techniques, such as dynamic headspace (DHS) sampling. The considerable water content in meat and other food brings risk of moisture build-up in the sorbent tube, potentially disrupting the TD-GC-MS analysis. An automated DHS option with dry purge feature, can effectively address this issue, as illustrated here using cooked ground beef and plant-based meat as examples. A workflow for optimizing DHS settings relevant to this study is presented. The aroma profiles of cooked ground beef and plant-based meat are analyzed and compared.
This work presents an Automated Sample Preparation procedure for MOSH/MOAH analysis of Seasoning Oils. We compare results from a manual epoxidation procedure compliant with DIN 16995 with results based on fully automated sample preparation (epoxidation and saponification) compliant with ISO 20122. In both cases, online clean-up via activated aluminum oxide (AlOx) are used to remove interfering n-alkanes from the MOSH fraction during the HPLC run. Automated data evaluation using a dedicated software (GERSTEL ChroMOH) is presented.
A methodology is presented for the determination of flavor compounds in dietary supplements using Stir Bar Sorptive Extraction (SBSE). Quantitation is accomplished by automating the spiking of Tenax-TA® filled sorbent tubes. A retention time index (RTI) standard is also introduced. The GERSTEL Internal Standard/Dry Purge Plus (ISDP+) module automates spiking of standards, internal standards, or a retention index mix and is used to dry purge sorbent tubes to remove excess water or solvent, that may adversely affect the trapping and transfer of analytes to the GC column.
In this work, a robotic sampler is used to automate the complete extraction, introduction, and LC-MS/MS analysis workflow for determination of neonicotinoid compounds in honey samples.
Forward-thinking labs can make smarter, more cost-effective decisions when investing in quality analytical liquid chromatography (LC) systems. This eBook, based on the findings from biannual surveys conducted by LCGC International in partnership with Agilent Technologies, uncovers the hidden costs behind instruments and shows how reliability, expert customer support, and long-term value can drive operational excellence. Ultimately, cutting-edge innovations, including ultra-high performance liquid chromatography (UHPLC), are redefining performance, speed, and scientific potential in the modern LC lab.
With increasing concern over genotoxic nitrosamine contaminants, regulatory bodies like the FDA and EMA have introduced strict guidelines following several high-profile drug recalls. This poster showcases a case study where LGC and Waters developed a UPLC/MS/MS method for quantifying trace levels of N-nitroso-sertraline in sertraline using Waters mass spectrometry and LGC reference standards.
We’ve expanded our capabilities with a state-of-the-art, 200,000 sq ft TRC facility in Toronto, completed in 2024 and staffed by over 100 PhD- and MSc-level scientists. This investment enables the development of more innovative compounds, a broader catalogue and custom offering, and streamlined operations for faster delivery. • Our extensive range of over 100,000 high-quality research chemicals—including APIs, metabolites, and impurities in both native and stable isotope-labelled forms—provides essential tools for uncovering molecular disease mechanisms and exploring new opportunities for therapeutic intervention.
Impurity reference standards (IRSs) are essential for accurately identifying and quantifying impurities in pharmaceutical development and manufacturing. Yet, with limited regulatory guidance on how much characterisation is truly required for different applications, selecting the right standard can be challenging. To help, LGC has developed a new interactive multimedia guide, packed with expert insights to support your decision-making and give you greater confidence when choosing the right IRS for your specific needs.
Learn how to manage nitrosamine impurities in pharmaceuticals with our free infographic. Discover how the CPCA approach establishes acceptable intake limits and guides the selection of NDSRI reference samples. Stay compliant and ensure safety with our ISO-accredited standards.
Polysome profiling is a method for analysing the translational status of cells. This AppNote describes a simple FPLC system for polysome fractionation.
Pfizer streamlined their LC/UV/MS data processing by adopting a semi-automated workflow with MS Workbook Suite, enabling faster, more consistent analysis and cutting process
Organic solvent, pH, salt concentration, and gradient mixing rates influence HIC separations. Optimizing these factors allows for effective separation of mAbs and ADCs.
Analytical scientists are faced with the task of finding the right column from an almost unmanageable range of products. This paper focuses on columns that enable protein analysis under native conditions through size exclusion, hydrophobic interaction, and ion exchange chromatography. It will highlight the different column characteristics—pore size, particle size, base matrices, column dimensions, ligands—and which questions will help decide which columns to use.
Not all chromatography resins are created equal. Off-the-shelf chromatography resins might not always meet the rigorous purification requirements of biopharmaceutical manufacturing. Custom bonded silica from Grace can address a wide range of separation challenges, leading to real performance improvements. Discover more about the latest innovations in chromatography silica from Grace, including VYDAC® and DAVISIL®.
Particularly in the pharmaceutical industry, drug purity isn’t just a goal – it’s essential for achieving safety, stability and efficacy. However, purification is easier said than done, especially with challenging molecules like DNA and RNA “oligonucleotides,” due in large part to their diversity and the range of impurities that can be generated during production. Enter DAVISIL® chromatographic silica, with a wide range of pore diameters and particle sizes to meet your specific application, performance and sustainability requirements. Before you choose the chromatography resin for your next purification application, take a look at these 5 considerations.
Recent advancements in automated protein purification stress the importance of efficiency, scalability, and yield consistency. This eBook compares different purification platforms, highlighting their impact on downstream applications and demonstrating how automation enhances throughput and process control.
Learn about new advancements for achieving increased component resolution, shorter run times and more consistent recoveries of HMWPs with outstanding reproducibility.
The aim of the study was to illustrate the efficiency of Milli-Q® water purification systems in eliminating pesticides from tap water, thereby producing and delivering reliable and consistent-quality ultrapure water suitable for pesticides analysis
With growing concerns over PFAS in food, reliable detection methods are essential for safety and compliance. This e-book explores advanced techniques for analyzing PFAS in various food matrices.
As PFAS contamination spreads across the environment, advanced screening and characterization techniques are crucial for detection and risk assessment. This e-book explores cutting-edge analytical methods for identifying PFAS in environmental and biological samples.
The Axcend FocusArray is the ideal choice for your challenging liquid chromatography requirements. The only diode array detectr for capillary HPLC offers a full three orders of magnitude linearity needed to identify trace elements in the presence of your target analytes.
The Focus LC high-performance liquid chromatography (HPLC) system is small enough to be easily placed near the sample source and powerful enough to be used in any state-of-the-art laboratory. It’s optimized for low solvent consumption, waste reduction, and energy conservation, and delivers the performance and reliability you need for the highest confidence in your daily results.
InFocus enables real-time in-line sampling, ensuring process integrity throughout the workflow, including inside a hood or next to a reaction vessel. Scientific breakthroughs and process optimizations require fast, accurate, and reliable data. As a Process Analytical Technology (PAT) tool, the InFocus enables real-time, in-line, on-line, and at-line analysis, allowing scientists and engineers to detect inefficiencies, optimize reactions, and improve product quality without delays.
AutoFocus autosampler allows automated and unattended introduction of multiple standards and samples to the Axcend Focus LC for separation and analysis. The automated sampling system streamlines precision sample injection, improving efficiency and throughput. Designed for effortless operation and maintenance, AutoFocus offers excellent performance, making it the ideal autosampler for unattended analyses.
A full-stack capillary HPLC system, such as the one recently launched by Axcend, integrates several innovative features that set it apart from traditional HPLC systems. This compact system includes a 40-vial/96-well plate autosampler, an in-line process analytical technology (PAT) monitoring system, and a full-spectrum diode array detector (DAD). These components work together to enable real-time data analysis at the point of sampling, significantly enhancing productivity and precision. One of the most remarkable aspects of this system is its small footprint, which optimizes valuable lab and production space while reducing costs and environmental impact (the base measures 13" X 9"). The low-flow design minimizes solvent consumption and hazardous waste, aligning with sustainable laboratory practices. Additionally, the system's ability to perform HPLC anywhere—whether inside a hood or next to a reaction vessel—provides unparalleled flexibility for scientists.