Exploring Ways to Optimize Chiral Separations
Cyclodextrin columns are unique in their ability to resolve a variety of chiral compounds. However, variation in linear velocity and temperature ramp rate can greatly affect the resolution of enantiomers, impacting the performance of chiral separations. Here, we show the results of several strategies you can use to optimize these types of analyses.
How to Sonicate Your Reference Standards
Depending on how your reference standards are stored, it’s possible some of the analytes may fall out of the solution. This will impact the analyte concentration, which can be particularly detrimental for reference standards containing long-chained alkanes such as Restek’s MOSH/MOAH Retention Time Standard. Sonication can be used to help redissolve these analytes into the solution at the proper concentration.
Cannabis Q&A: What’s the Right Extraction for Your Matrix?
Accurate potency results depend on effective separation of cannabinoids from matrix components, but with such diverse sample types no single extraction procedure will work for all samples. In this video, we discuss some considerations for choosing a sample extraction method based on the nature of the sample being analyzed.
Fast, Accurate Separation of Vitamin D Epimers on Raptor FluoroPhenyl LC Columns
Vitamin D analysis has increased dramatically in clinical practice due to its association with multiple human diseases including cancer, rheumatoid arthritis, and diabetes. In this fast, 5-minute analysis, the Raptor FluoroPhenyl LC Column achieves complete separation of vitamin D epimers to reliably provide accurate measurement of vitamin D content.
Split vs. Splitless: Which GC Injection Mode Should I Use?
Split and splitless are the two most common GC injection techniques. But how do you know which to use? In this video, we follow a sample through split and splitless injections and compare the strengths of each technique to help you choose the right one for your analysis.
Achieve High-Throughput Analysis of Cannabinoids by LC-UV
In this simple, isocratic analysis, the Raptor ARC-18 LC column achieves complete resolution of 16 cannabinoids, allowing accurate quantitative potency and profile data to be reported. All compounds are separated to baseline in a fast, 9-minute analysis, making this method suitable for high-throughput testing labs.