Introduction
The document discusses the integration of a new APCI/APLI source with high-resolution TOF-MS, enhancing its application with both liquid chromatography (LC) and gas chromatography (GC). This innovation allows for high mass resolution and accuracy without being affected by the chromatographic system used.

Apparatus
The main challenge in combining LC-MS with GC is the difference in ionization methods. The new Bruker Daltonics source overcomes this by using atmospheric pressure ionization (API) even in GC applications, offering advantages over traditional vacuum ionization.

New Generation of GC/High Resolution TOF-MS
The document describes the setup of the APCI/APLI source, including a schematic of the GC-TOF-MS coupling. The system uses a heated transfer line to prevent condensation and allows for both chemical and laser ionization.

Applications
Pesticide Screening: The GC-TOF-MS system is ideal for complex pesticide mixtures, offering superior screening capabilities compared to quadrupole MS. A high-resolution extracted ion chromatogram (hrEIC) demonstrates the system's ability to identify pesticides with high accuracy.
PAH Analysis: APLI is particularly effective for analyzing polycyclic aromatic hydrocarbons (PAHs), providing enhanced selectivity and sensitivity. The document highlights the significant improvement in sensitivity over conventional methods.

Metabolomics
GC-MS is highlighted as a powerful tool for metabolite analysis, requiring chemical derivatization to make analytes volatile. The document includes a chromatogram of a derivatized mouse urine sample, showcasing the system's capabilities.

Summary
The integration of APCI-TOF-MS with GC opens new analytical possibilities, offering high mass accuracy and resolution. APLI further enhances sensitivity for specific applications, setting new benchmarks in analytical chemistry.

References
The document cites several studies and references that support the discussed technologies and applications.