Application Notes

To demonstrate fast, highly sensitive quantitation of nine nitrosamines with LC–MS measuring impurities in commercially available ranitidine drug substances and products

This application note demonstrates robust and sensitive quantitation of 10 nitrosamines, and the use of the LC–SRM–MS to quantify nitrosamine impurities in metformin.

This application note demonstrates fast, highly sensitive quantitation of nine nitrosamines, and the use of the LC–MS method to measure nitrosamine.

Download this guide to learn the strategies to consolidate chemical reference parameters and population biomarker analysis to support the wastewater-based epidemiology.

This article introduces a comprehensive fractionation for both UV absorbing and non-UV absorbing compounds using a newly designed PDA-ELSD triggered preparative LC.  

This e-book demonstrates the use of Purge and Trap coupled with GC–MS to meet the challenges of VOC analysis for the most common EPA regulations and methods.

Multivitamin standards were prepared and filtered using 2-step Verex Filter Vials.

Hydrocortisone was extracted from a topical cream and filtered using Verex Filter Vials. Samples were run by LC–UV to see if using filter vials created any loss of sample.

IgG1 (Trastuzumab) and an IgG4 (Nivolumab) are digested with IdeZ protease, yielding Fab2’ and scFc fragments that were filtered using Verex Filter Vials to determine if there was a loss of sample.

In this application, Methylmalonic Acid (MMA) samples were filtered and tested to determine that no extractables were introduced by using the Verex Filter Vials.

Polychlorinated Biphenyls (PCBs) were prepared and filtered using Verex Filter Vials and traditional syringe filters.

In this application, atorvastatin standards were prepared and filtered using Verex Filter Vials. Samples were analyzed by LC–UV.

Chili powder and cumin powder were analyzed for pesticides and clean-up using Verex Filter Vials to remove undissolved sample particulates.

This application guide provides a comprehensive collection of simple sample preparation applications using filtration.

Get a better understanding of how ion chromatography plays an important role in pharmaceutical research and development.