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Waldemar Weber started his studies as a chemist in 2005 at the University of Münster, Germany. There, after graduating as a chemist, he achieved his Ph.D. in 2011 and completed a postdoc in 2013 at the Münster Electrochemical Energy Technology (‘MEET’) Research Center. From 2012 to 2013 he was employed as an Application Specialist at JAS in Moers, Germany. In November 2018 he joined Shimadzu Europa as Product Manager for GC–MS.

Articles

Exploring a new TD method capable of simultaneous analysis of compounds with a wide range of boiling points, high sensitivity, and high restore rates.

Analysis of Volatile Organic Compounds in the Environment Using TD-GC–MS

A hybrid HILIC–ion exchange column was used for the analysis of ultrashort-chain per- and polyfluoroalkyl substances (PFAS) compounds in environmental waters. This direct injection LC–MS method enables simultaneous measurement of ultrashort- chain, alternative, and legacy PFAS in potable and non-potable waters.

Simultaneous Analysis of Ultrashort-Chain, Alternative, and Legacy PFAS in Potable and Non-Potable Waters

A comprehensive monitoring protocol has been developed using GC–MS/ECD in selective ion monitoring (SIM) mode, with injection performed by solid-phase microextraction (SPME) and headspace (HS). This single system has been configured to analyze for all taste and odor (T&O) compounds in Standard Method 2170, with minimal changing of columns, injectors, or SPME fibers between methods.


A Turnkey Protocol for Detecting Taste and Odor Compounds in Drinking and Surface Waters by Gas Chromatography–Mass Spectrometry and Electron Capture Detector (GC–MS/ECD)

This article explores the role of SPE sorbents for analyte recovery rates and method accuracy to develop clean samples for analysis and to reach lower limits of detection.

Advances in Solid-Phase Extraction to Improve the Analysis of Per- and Poly-fluorinated Alkyl Substances

Environmental laboratories with high sample throughput often wish to analyze PCDD/Fs and PCBs in separate fractions. The cleanup method described here results in complete separation, and offers an alternative to fully manual or fully automated cleanup.

Semi-Automated Cleanup of Persistent Organic Pollutants in Environmental Samples—Complete Separation of PCDD/Fs and  PCBs for Extracts in Toluene

Microplastic pollution in the environment is a major concern for governments and companies worldwide attempting to understand and reduce the damage they cause. As well as the direct damage these plastic pellets can also act as chemical reservoirs that leach chemical contaminants into the environment and further damage ecosystems. The Column spoke to Manuel Miró from the University of the Balearic Islands, Spain, about his research into the pollution caused by chemical leaching from microplastics.

Understanding Microplastic Leaching

Environmental analysis of water presents many challenges, one of which is the potential presence of unknown contaminants. LCGC spoke to Imma Ferrer, an associate research scientist at the University of Colorado, USA, about some of her recent research on nontargeted analysis of water, including water from wastewater treatment plants, hydraulic fracturing wastewater, and environmental water samples.

Advancing Nontargeted Analysis of Water

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LC–MS techniques, particularly those using high-resolution MS and nontargeted analysis, are advancing many areas of water research. Here, Imma Ferrer of the University of Colorado shares some of her recent work in this field.

Researchers have developed an alternative method to reduce interferences for the analysis of N-nitrosamines using GC coupled to HR-QTOF-MS.

Nitrosamine Determination Using GC–PCI-QTOF-MS

In this study, the intentional incorporation of an air bubble into a solvent droplet is proposed for fully automated bubble-in-drop microextraction–gas chromatography–mass spectrometric (BID-GC–MS) analysis of selected organochlorine pesticides as model analytes.

Development of Fully Automated Bubble-in-Drop Microextraction–Gas Chromatography–Mass Spectrometry of Organochlorine Pesticides in Environmental Waters

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