Thermo Scientific Orbitrap Exploris 240 mass spectrometer

Significance of the topic

The Orbitrap Exploris 240 mass spectrometer addresses critical demands in modern analytical chemistry by delivering high-resolution accurate mass data, sub-ppm mass accuracy, and versatile acquisition strategies. Its performance drives advancements in small molecule identification, proteomics, biotherapeutic characterization, and metabolomics, enabling researchers to achieve confident results, high throughput, and simplified workflows.

Objectives and overview of the study

This overview details the design, capabilities, and applications of the Orbitrap Exploris 240 mass spectrometer. Key goals include demonstrating:

• High mass accuracy and resolution across m/z 40 to 6000, extendable to 8000
• Operational simplicity with intelligent data acquisition
• Compatibility with diverse applications including proteomics, biopharma, metabolomics and small molecule analysis
• Integration with advanced software and UHPLC systems for increased throughput

Methodology and instrumentation

The instrument configuration and methods include:

• Orbitrap Exploris 240 mass spectrometer with EASY-IC internal calibration for sub-ppm stability
• Vanquish Flex Duo UHPLC system for parallel sample loading
• AcquireX intelligent data acquisition workflows for targeted and untargeted analyses
• FAIMS Pro interface and isobaric labeling reagents for multiplexed proteomics
• uHTPPP workflow using EvoSep One and automated sample preparation for high-throughput plasma profiling
• BioPharma option extending m/z range to 8000 for native intact protein analysis
• Software suite including Proteome Discoverer, Compound Discoverer, BioPharma Finder, TraceFinder, Chromeleon CDS, and mzCloud libraries

Main results and discussion

Key findings across various applications:

• Consistent sub-1-ppm mass accuracy over at least five to fifteen days for small molecules and veterinary drugs
• Full-scan quantitation of pioglitazone in plasma over five orders of dynamic range (0.1 to 10000 ng/mL) with LLOQ of 0.1 ng/mL
• Proteomics identification of over 7000 proteins from low sample amounts, with multiplexed TMT quantitation and FAIMS enhancement
• High-throughput plasma protein profiling with coefficient of variation below 5% using uHTPPP workflow
• Native MS analysis of therapeutic proteins down to sub microgram levels with reproducible glycoform distributions
• AcquireX deep scan achieving over 90% MS2 coverage in complex matrices within three injections
• Extended low m/z range enabling differentiation of structural isomers in metabolomics

Benefits and practical applications of the method

The combined performance and versatility provide:

• Robust identification and quantitation across multiple matrices with minimal method optimization
• Improved confidence in elemental composition elucidation and fragment assignment
• Streamlined workflows from discovery to targeted screening and compliance-ready analyses
• Enhanced sample throughput for clinical, translational, and industrial applications
• Reduced sample consumption in high-sensitivity intact mass measurements

Future trends and potential applications

Potential developments include:

• Deeper integration of artificial intelligence for real-time data interpretation
• Expanded multiplexing capabilities for high-throughput proteomics and metabolomics
• Automation of sample preparation and method development to further reduce turnaround time
• Advancement in native and top-down proteomics for detailed structural characterization
• Broader adoption in clinical diagnostics, environmental monitoring, and biopharmaceutical quality control

Conclusion

The Orbitrap Exploris 240 mass spectrometer represents a next-generation HRAM platform that unifies high mass accuracy, resolution, and flexible acquisition strategies to address diverse analytical challenges. Its integration with advanced UHPLC systems and software ecosystems empowers researchers to achieve confident identifications, precise quantitation, and high throughput across small molecules, proteomics, and biotherapeutics. This versatile solution simplifies workflows, unlocks new insights, and paves the way for future innovation in analytical science.