Exploring the Volatile Profile of Whiskey Samples using Solid-Phase Microextraction Arrow and Comprehensive Two-Dimensional Gas Chromatography-Mass Spectrometry

VonAudrey Crater

Author(s): Antonio Ferracane1,2, Natalia Manousi2,3, Peter Q. Tranchida1, George A. Zachariadis3, Luigi Mondello1,4,5, Erwin Rosenberg2 ssd1. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy, 2. Institute of Chemical Technology and Analytics, Vienna University of Technology, Getreidemarkt 9/164, Vienna 1060, Austria, 3. Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University…

Development, Optimisation, and Pre-Validation of a Gas Chromatography—Ion Mobility Spectrometry Method with Preliminary Twofold Enrichment for the Sensitive Detection of N–Nitrosamines in Drinking Water

VonAudrey Crater

This study aims to develop, optimise, and evaluate a gas chromatography-drift tube-ion mobility spectrometry (GC-IMS) based method with a twofold enrichment strategy consisting of solid phase extraction (SPE) followed by in-tube extraction (ITEX) of the eluate for nine different nitrosamines in drinking water in order to offer a sensitive alternative to the current state of the art.

Appropriate Instrumentation for the Chemical Analysis of Cannabis and Derivative Products: Part 1

VonAudrey Crater

For the uninitiated, analytical instrumentation can be a confusing mix of abbreviations and hyphenation. In this series of articles, we break down and explain in practical terms what instruments are appropriate for a particular analysis and what to consider when choosing an instrumental technique.

Rapid Screening Analysis of On-Line Purified Residual Pesticides in Crop Extract Using Accurate Mass Information

VonAudrey Crater

In this article, an example of comprehensive analysis of residual pesticides in spinach using a Revive In-Line Sample Preparation (ILSP) and the quadrupole time-of-flight mass spectrometer LCMS-9050 is introduced.

Method Development and Column Selection: How the FluoroPhenyl Phase Provides the Power of HILIC and Reversed-Phase Modes in One Column

Method Development and Column Selection: How the FluoroPhenyl Phase Provides the Power of HILIC and Reversed-Phase Modes in One Column

VonAudrey Crater

Column selection is an important part of method development as the quality of critical separations is determined in large part by the retention and selectivity of the analytical column. Although C18 columns are commonly employed, FluoroPhenyl columns provide an orthogonal alternative for method development because they incorporate multiple retention mechanisms and can be used in both reversed-phase (RP) and HILIC modes. This paper explores how FluoroPhenyl columns can be used to improve separations, especially for compounds that are difficult to analyze on a C18, such as basic analytes or small, polar compounds.

Purification of Mineral Oil Aromatic Hydrocarbons and Separation Based on the Number of Aromatic Rings Using a Liquid Chromatography Silica Column. An Alternative to Epoxidation

VonAudrey Crater

This work presents a new purification approach based on liquid chromatography fractionation on silica using the same column and eluents as for the usual MOSH/MOAH fractionation.