This technical note describes the use of Tandem Ionisation for BenchTOF2™ mass spectrometers to acquire both hard (70 eV) and soft (10–20 eV) electron ionisation (EI) in a single analysis.
This technical note demonstrates how Tandem Ionisation data can be used to improve discovery workflows by reducing the frequency of false positives and describes how this is achieved using an untargeted, tile-based approach used in ChromCompare+ software to find the significant class-based differences between GC and GC×GC chromatograms.
This study demonstrates how the comprehensive data acquired using GC×GC–TOF MS with Tandem Ionisation® can be processed in a single, automated workflow to uncover the subtle differences between brand and imitation fragrances.
This study demonstrates the use of GC×GC coupled with BenchTOF2 and Tandem Ionisation to identify trace additives in gasoline, with time-saving workflows in ChromCompare+ software utilising all of the tandem data in a single workflow to automatically uncover differences between gasoline blends.
In this study, flow-modulated GC×GC–TOF MS with Tandem Ionisation is used to characterise essential oils in fine detail, allowing the in-depth comparison of their compositions that aids rigorous quality control.
This study demonstrates the high performance of flow-modulated GC×GC–MS system for effective modulation of even the most volatile components in complex hop oils, without the need for expensive liquid cryogen.
This preliminary study investigates the use of flow-modulated GC×GC to analyse an 84-component allergen calibration standard, with simultaneous detection by TOF MS for confident identification and FID for robust quantitation.
This study demonstrates the enhanced separation and unparalleled sensitivity that can be achieved in the characterisation of cigarette smoke, using thermal desorption (TD) and flow-modulated GC×GC with TOF MS, aided by Tandem Ionisation.
This study shows the value of dynamic headspace sampling and thermal desorption–GC–TOF MS analysis to rapidly profile volatile compounds released from flavoured cookies, and avoid the problems typically encountered when using solvent-extraction methods.
This study demonstrates the high performance of a flow-modulated GC×GC–TOF MS system, coupled with sample preparation by solid-phase micro-extraction (SPME), for the separation and identification of trace volatiles in three brands of whisky.
This study shows that GC×GC and time-of-flight mass spectrometry provides a high-performance solution for screening complex coffee extracts for key aroma compounds.
This study demonstrates the high performance of PDMS sorptive extraction probes, coupled with thermal desorption pre‑concentration and flow-modulated GC×GC–TOF MS/FID analysis, for the separation and identification of flavour compounds in milk.
This study demonstrates the use of high-capacity sorptive extraction, with analysis by TD–GC×GC–TOF MS, for the aroma profiling of meat-based cat food, including the reliable detection of trace off-odour components.
This study demonstrates the use of flow-modulated GC×GC to analyse a FAME standard and FAMEs from a butter extract, with simultaneous detection by TOF MS and FID for improved speciation. Tandem Ionisation is used to add an additional level of confidence for compounds exhibiting weak molecular ions and/or similar spectra at 70 eV.
This study demonstrates the suitability of a TD–GC×GC system with dual TOF MS/FID detection for the routine, automated analysis of VOCs in complex humid air samples.
This study demonstrates a fully automated GC analysis of volatile organic compounds (VOCs) in the headspace of waste effluent using a flow-through cell with a sample preparation robot, and detection by FID and/or TOF MS.
This study demonstrates the performance of a flow-modulated GC×GC system for the analysis of complex petrochemicals, with the INSIGHT modulator providing efficient and repeatable modulation without the need for expensive liquid cryogen.
This article illustrates how ChromSpace software, in conjunction with dual TOF MS/FID detection and Tandem Ionisation, can streamline the process of achieving robust and reliable analyte speciation and quantitation of complex petrochemicals in an acceptable time frame.
This study shows how the acquisition of ‘soft’ electron ionisation spectra offers significant advantages for the GC–MS analysis of phthalates.
This study demonstrates the improvements in efficiency and sensitivity that can be achieved by using programmed temperature vaporisation (PTV) with GC and time-of-flight mass spectrometry (TOF MS) for the analysis of semi-volatile organic compounds relevant to environmental monitoring.