Application Notes: General

In this article, the results of a DIMS air monitoring campaign in Auckland, New Zealand, are described. Real-time SIFT–MS measurements were obtained at three sites over a period of several weeks. At each site, SIFT–MS provided effective on-site analysis to sub-ppbV levels with better than 1-min time resolution.

This application note describes the determination of method detection limits (MDLs) for the newly regulated HON (Hazardous Organic NESHAP) compounds, which validate SIFT-MS as an effective solution for measuring these toxic VOCs and other environmental pollutants in ambient air, whether at the fence line or in a mobile setting.

This study demonstrates high-throughput analysis of BTEX compounds from several matrices (air, water and soil). Detection limits in the single-digit part-per-billion concentration range (by volume) are readily achievable within seconds using SIFT-MS, because sample analysis is achieved without chromatography, pre-concentration, or drying. We also present a calibration approach that enables speciation of ethylbenzene from the xylenes in real-time.

This application note summarizes key SIFT-MS results presented in a peer reviewed article entitled “Unreported VOC Emissions from Road Transport Including from Electric Vehicles.” Learn how the Wolfson Atmospheric Chemistry Laboratory at the University of York used SIFT-MS for VOC analysis in its platform to experimentally verify that motor vehicle screen wash is a significant unreported source of VOC emissions (especially for ethanol and methanol).

This publication reviews VOC pollutant monitoring applications of SIFT-MS in South Korea. SIFT-MS has been applied to emission source characterization, fenceline monitoring, ambient monitoring, pollution mapping, and incident response (including the use of drone-based sampling) for hazardous air pollutants (HAPs), odor nuisance species, and compounds that have high ozone formation potential (OFP) and/or contribute to secondary aerosol (SOA) formation.

HPLC coupled with negative ESI-MS provides a reliable method with unique capabilities for separation and identification of (therapeutic) oligonucleotides.

This application note demonstrates that the Agilent 6546 LC/Q-TOF in Targeted MS/MS acquisition mode is suitable for meeting performance requirements in US EPA Method 533 for the quantitative analysis of PFAS

This application note demonstrates the use of FluoroMatch Suite for the analysis and identification of per- and polyfluorinated substances (PFAS) using an Agilent 1290 Infinity II LC and Agilent 6546 LC/Q-TOF mass spectrometer with iterative exclusion (IE).

This application note describes a rapid analytical method for the detection of 20 perfluoroalkyl substances (PFAS) in human hair within 10 minutes. Solid phase extraction (SPE) using the Agilent Bond Elut ENV cartridge was used to extract the sample

A modified Solid Phase Extraction (SPE) method using UCT’s C18 cartridges has been demonstrated for the extraction of organochlorine pesticides and PCBs in water.

Therapeutic oligonucleotides have emerged as an area of promise in biopharmaceutical research because of their ability to target different biological pathways and treat a wide range of diseases.

This paper demonstrates a fast, non-destructive method for analyzing edible oil composition using Raman spectroscopy, offering an efficient alternative for the lab.

This article will discuss several aspects of working with high purity water in LC-MS analyses including quality and handling. Solutions will be proposed for optimal water purification based on the use of complementary purification technologies combined with application-specific final filtering, and finally, the importance of water purification system maintenance will be discussed.

This article will discuss several aspects of working with high purity water in LC-MS analyses including quality and handling. Solutions will be proposed for optimal water purification based on the use of complementary purification technologies combined with application-specific final filtering, and finally, the importance of water purification system maintenance will be discussed.

Improve efficiency and streamlining workflows for GC and LC labs with CDS software.

This application note demonstrates the potential of valorizing mother liquor using Centrifugal Partition Chromatography (CPC) to remediate minor cannabinoids.

This application note examines the USP acetaminophen impurities using an HPLC system and UPLC System. Improvements in sample throughput and solvent usage were realized by using newer technology.

In this application note the USP monograph method for naproxen sodium tablets was modernized and Analytical Method Greenness Scoring (AMGS) values were assigned to each system used. The use of newer technology including sub-2 µm columns provides not only improvements to throughput and solvent usage but also drastically improved AMGS values.

This application note examines the analysis of quetiapine fumarate using HPLC, UHPLC and UPLC Columns. Considerable improvements to run time and solvent usage were achieved by modernizing to UPLC Columns.

Microplastics in water are a major concern, found even in tap water and human bodies. Learn how Sartorius Arium® Pro VF series removes them effectively.

Achieving reliable trace perchlorate analysis proving difficult? Discover this powerful IC method for simple, ultra-low detection in water matrices.

Poster discussing what the ICH Q14 guidelines entail and how AutoChrom can help implement these principles. The poster includes details about the ICH Q14 guidelines and specific details about how tools and features within AutoChrom can help implement ICH Q14 principles.

This application note demonstrates the use of the Agilent 1260 Infinity II Hybrid Multisampler for the analysis of per- and polyfluorinated alkyl substances (PFAS). The Hybrid Multisampler in feed injection mode was used with optimized Feed Speed for the sample injection to trap and enrich the compounds on the column. This avoided peak broadening and breakthrough of the early-eluting polar PFAS compounds. The less polar PFAS compounds can be enriched for more sensitive quantification.

This overview of instruments and applications shows various solutions for purification, characterization and quality control which are indispensable for the development of oligonucleotide therapeutics.

Due to their ability to tackle targets that were considered “undruggable”, oligonucleotides represent a key cornerstone of the future of personalized medicine. This infographic presents the different types of therapeutic oligonucleotides and highlights some innovative solutions for their analysis.

The US EPA has released interim health advisory limits (HALs) of 4 and 20 pg/L in drinking water for the PFAS perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), respectively. This application note addresses PFAS testing at these challenging new levels in aqueous samples using optimized solid-phase sample extraction and LC/MS/MS analysis with an Agilent 1290 Infinity II liquid chromatography (LC) system coupled to an Agilent 6495C triple quadrupole (TQ) mass spectrometer.