Application Notes

In this study, AF4-MALS-ICP-MS was applied to characterize four commercial tattoo inks: outlining black, purple deep violet, green grasshopper, and blue ice.

In this study, we developed a simple dilute-and‑shoot method that provides a fast 3.5-min analysis of fentanyl and related compounds (norfentanyl, acetyl fentanyl, alfentanil, butyryl fentanyl, carfentanil, remifentanil, and sufentanil) in human urine by LC–MS/MS using a Raptor Biphenyl column.

Sphingolipids are major components forming biological membranes, and they serve as intracellular signalling molecules. It is important to measure the amount of these molecules in biological samples because they have a massive influence on various metabolic diseases such as obesity, diabetes, and Alzheimer’s disease. Recently, an improved method using a YMC-Triart C18 metal-free column was reported by Dr. Gowda et al.

In this application note, two commercially available samples were analyzed in the ASTRA® software by SEC coupled to a multi-angle light scattering (MALS) detector (DAWN®), a refractive index detector (Optilab®), and a differential viscosity detector (ViscoStar®).

• Tips for mobile phase filtration • Answers to FAQs about syringe filter selection • Why filtration is so important to method development and sample prep • Filters for sample prep in dissolution testing

• Modern software makes tracking and scheduling maintenance more efficient • Systems schedule maintenance based on instrument usage

Solutions to address these challenges in the biopharmaceutical development process N-glycan screening for clone selection, characterization and process control

Aroma compounds in scented wax candles as well as aroma and odor emissions were determined by GC/MS after direct thermal extraction and air sampling with sorbent tubes.

Data acquired using the Centri® automated multi-mode sampling and preconcentration system for GC–MS can be used to generate insights into the aroma profiles of foods.

Using a PFAS delay column is an effective way to separate target PFAS in samples from interferences caused by PFAS contamination in the LC system.

Shodex HILICpak VT-50 is suitable for the analysis of phosphorous-containing amino acids herbicids including glyphosate, glufosinate and their metabolites using ESI-MS detection.

Antibody molecular weight analysis can now be easily performed on the Shodex PROTEIN LW-803.

Shodex RSpak DE-413L is suitable for the analysis of water-soluble vitamins in a single run.

30mer oligonucleotides were analyzed with the Shodex HILICpak VN-50 coupled with LC/UV/ESI-MS detection without the need of ion-pair reagents.

Fermentation can be quickly monitored in foods using the Shodex rapid sugar series.

FFF-MALS-DLS is valuable for characterizing liposomes and solid lipid nanoparticles, determining detailed size distributions, particle shape, concentration and more.

Organic acids come in a wide variety and are difficult to analyze on a single stationary phase. Our new Intrada Organic Acid column was designed for this purpose.

An HPLC method for the testing of CBD oils. The DLC-10 is a small footprint, easy-to-use and low-cost HPLC system. An isocratic assay offers reliability and ease of use.

Sample Preparation, SPE, LC/MS/MS, High Throughput Lab Automation, Veterinary Drugs, Antibiotic

Aroma compounds in scented wax candles as well as aroma and odor emissions were determined by GC/MS after direct thermal extraction and air sampling with sorbent tubes.

Pickering Laboratories introduces a simple, sensitive, and robust method for analysis of theanine in tea leaves, tea extracts, and tea-containing dietary supplements.

A sensitive, robust method for analysis of glyphosate in wide range of foods using a simplified sample preparation procedure effective for challenging matrices