Thermo Fisher Orbitrap Exploris 240 Liquid Chromatography High-Resolution Mass Spectrometer (Domestically Manufactured in Shanghai)

Overview

The Thermo Fisher Orbitrap Exploris 240 LC-HRMS is a high-performance, compact liquid chromatography–mass spectrometry system engineered for routine and research-grade applications requiring robust high-resolution mass accuracy, reproducible quantitative performance, and operational efficiency. Built upon the proven Orbitrap mass analyzer architecture, it employs electrostatic trapping of ions in a rotating orbital motion within a high-field, compact Orbitrap cell—enabling Fourier-transform-based detection with intrinsic mass resolution up to 120,000 (FWHM at m/z 200). The system integrates a dual-pressure linear ion trap (LIT) for rapid precursor selection and fragmentation, coupled with a newly optimized ion optical path that enhances transmission efficiency across a broad m/z range (50–4,000). Its scanning speed reaches 22 Hz in full-scan mode and supports polarity switching at 1.4 Hz—critical for untargeted profiling of complex biological or environmental matrices where both positive- and negative-ion species coexist. Designed for sustained daily operation in regulated and academic laboratories, the instrument delivers consistent mass accuracy (<1 ppm RMS error over 5 days) without manual recalibration, enabled by the integrated EASY-IC internal calibration source.

Key Features

• High-field Orbitrap mass analyzer delivering up to 120,000 resolution (FWHM at m/z 200) with sub-ppm mass accuracy stability over extended acquisition periods
• Dual-pressure linear ion trap enabling fast MS/MS acquisition, data-dependent acquisition (DDA), and parallel reaction monitoring (PRM) workflows
• EASY-IC internal calibration source ensuring continuous mass axis stability—<1 ppm mass drift over 120 hours of uninterrupted operation
• Compact physical footprint (~50% smaller than the Q Exactive series), reducing bench space requirements while maintaining full analytical capability
• Enhanced ion optics design minimizing signal loss and improving robustness against matrix-induced suppression and source contamination
• Optimized vacuum architecture with dual-stage turbo pumping for rapid pump-down and stable operating pressure during high-throughput LC gradients

Sample Compatibility & Compliance

The Orbitrap Exploris 240 LC-HRMS accommodates diverse sample types—including small molecules, peptides, metabolites, lipids, and intact proteins—when coupled with standard reversed-phase, HILIC, or ion-pairing LC methods. It supports direct infusion, nanoLC, and UHPLC configurations via interchangeable source modules (e.g., HESI, FESI, NanoFlex). The system complies with key regulatory frameworks for data integrity and instrument qualification: it supports audit-trail-enabled software operation aligned with FDA 21 CFR Part 11 requirements; method validation workflows follow ICH Q2(R2) guidelines; and mass calibration protocols are traceable to NIST-traceable standards. Routine use in GLP and GMP environments is facilitated through IQ/OQ documentation packages and configurable user access controls.

Software & Data Management

Controlled by Thermo Scientific™ Tune™ and Compound Discoverer™ software, the system provides intuitive method setup, real-time spectral visualization, and automated peak detection, alignment, and annotation. Preconfigured method templates cover targeted quantitation (e.g., pesticide residue analysis per ISO 17025), untargeted metabolomics (following Metabolomics Standards Initiative guidelines), and proteomics (compatible with MaxQuant and Proteome Discoverer workflows). All raw data files (.raw) are stored in vendor-neutral, open-format-compatible structures. Integrated metadata tagging, version-controlled method storage, and secure electronic signatures ensure compliance with ALCOA+ principles. Data export supports mzML, .mzXML, and .cdf formats for third-party processing in R/Bioconductor, Python (pyOpenMS), or commercial platforms.

Applications

• Regulatory bioanalysis: Quantitative determination of pharmaceuticals and metabolites in plasma, urine, and tissue homogenates per FDA Bioanalytical Method Validation guidance
• Environmental screening: Detection and identification of emerging contaminants (e.g., PFAS, microplastic additives) in water and soil extracts at sub-ng/L levels
• Clinical metabolomics: Large-cohort profiling of polar and semi-polar metabolites in serum and CSF using standardized SOPs compliant with the Human Metabolome Project
• Food safety: Multi-residue pesticide and mycotoxin analysis in complex food matrices with confirmatory HRMS/MS spectra
• Academic discovery research: De novo peptide sequencing, post-translational modification mapping, and lipid class identification without prior spectral libraries

FAQ

Is the Shanghai-manufactured Orbitrap Exploris 240 identical in performance to its US-assembled counterpart?

Yes—the Shanghai production line adheres to Thermo Fisher’s global manufacturing standards, including final system-level performance verification against the same specifications (resolution, mass accuracy, sensitivity, dynamic range) as instruments assembled in Bremen or San Jose.
Does the instrument support 21 CFR Part 11-compliant operation out of the box?

Yes—Tune software includes built-in electronic signature management, audit trail logging, and role-based access control. Full Part 11 compliance requires site-specific configuration and validation documentation, which Thermo Fisher provides upon request.
What maintenance intervals are recommended for routine operation?

Source cleaning is recommended every 2–4 weeks depending on sample load; Orbitrap cell bake-out is typically required only annually under normal usage. The EASY-IC system eliminates daily external calibration, reducing operator intervention by >70% compared to legacy platforms.
Can this system be upgraded to support newer firmware or software releases?

Yes—all instruments ship with Thermo Fisher’s Global Service Agreement eligibility and receive firmware/software updates via Thermo Fisher Connect, including security patches and feature enhancements aligned with the company’s annual release cycle.