HORIBA FluoroMax+ High-Sensitivity Integrated Fluorescence Spectrometer

Overview

The HORIBA FluoroMax+ is a high-sensitivity, fully integrated fluorescence spectrometer engineered for precision steady-state and time-resolved photoluminescence characterization. Built upon HORIBA Scientific’s legacy in Jobin Yvon spectroscopic technology, the FluoroMax+ employs a dual-monochromator Czerny–Turner optical architecture with all-reflective optics—eliminating chromatic aberration, transmission losses, and wavelength-dependent photometric errors inherent in refractive systems. Its photon-counting detection system delivers exceptional signal-to-noise performance, enabling reliable quantification of ultra-low-intensity emissions down to single-photon levels. The instrument supports both conventional intensity-based measurements and advanced lifetime-resolved modalities—including phosphorescence decay analysis—and is field-upgradable to Time-Correlated Single Photon Counting (TCSPC) for sub-nanosecond fluorescence lifetime studies. Designed for laboratory environments requiring regulatory compliance and long-term stability, the FluoroMax+ integrates rigorous optical alignment, thermal management, and mechanical isolation between sample chamber and optical bench.

Key Features

• All-reflective optical path using high-efficiency UV–Vis–NIR coated mirrors, ensuring broadband spectral fidelity from 185 nm to 850 nm without dispersion-induced artifacts
• Computer-controlled slit mechanism enabling continuous spectral bandpass adjustment from 0 to 30 nm with motorized precision
• 150 W ozone-free xenon lamp mounted vertically for optimal thermal stability and reduced lamp drift
• Integrated reference photodiode detector for real-time excitation beam monitoring and intensity normalization
• Monolithic optical platform housing excitation monochromator, emission monochromator, sample compartment, and detector—minimizing misalignment risks and simplifying maintenance
• Native support for TCSPC upgrade path, including synchronization electronics, pulsed laser interfaces, and lifetime analysis firmware modules
• Modular sample compartment with standardized flange interfaces (CF-35 and CF-63) for rapid attachment of temperature control units, polarization optics, TIRF stages, or microfluidic flow cells

Sample Compatibility & Compliance

The FluoroMax+ accommodates diverse sample formats—including cuvettes (1–5 µL, 50 µL, 250 µL), solid substrates, powders, thin films, and microplate wells—via interchangeable sample holders and optional accessories such as Peltier-controlled stages, liquid nitrogen Dewars, and HPLC flow cells. Its optical design conforms to ISO 17025 requirements for measurement traceability, and spectral calibration files are NIST-traceable. When configured with audit-trail-enabled software and electronic signatures, the system meets FDA 21 CFR Part 11 criteria for regulated QC/QA laboratories. All firmware and calibration data are stored internally with version-controlled metadata, supporting GLP/GMP documentation workflows.

Software & Data Management

Control and analysis are performed via HORIBA’s FluoroLogic™ software suite—a Windows-based application offering intuitive method setup, automated wavelength scanning, kinetic acquisition, and multi-dimensional data visualization. The software includes built-in algorithms for quantum yield (PLQY) calculation per ASTM E2659, anisotropy correction, spectral deconvolution, and exponential decay fitting (mono-/bi-/tri-exponential models). Raw data are saved in vendor-neutral HDF5 format with embedded metadata (wavelengths, integration times, slit widths, lamp status), facilitating interoperability with MATLAB, Python (h5py), and third-party chemometrics platforms. Data export supports CSV, ASCII, and JCAMP-DX standards for archival and regulatory submission.

Applications

• Quantitative determination of fluorophore concentration and quantum efficiency in organic LEDs, perovskite emitters, and bioconjugates
• Time-resolved analysis of excited-state dynamics in photocatalysts, molecular rotors, and triplet-harvesting materials
• Binding affinity studies via fluorescence quenching or Förster resonance energy transfer (FRET)
• Stability assessment of pharmaceutical formulations under thermal or photochemical stress
• Characterization of nanomaterials including quantum dots, carbon dots, and metal–organic frameworks (MOFs)
• Integration with stopped-flow systems for millisecond-scale reaction kinetics of enzymatic or supramolecular processes

FAQ

What is the spectral range supported by the FluoroMax+?
The standard configuration covers 185–850 nm, extendable to 1600 nm with optional NIR detectors and gratings.
Can the FluoroMax+ perform absolute quantum yield measurements?
Yes—when equipped with an integrating sphere accessory and FluoroLogic™ PLQY module, it complies with ASTM E2659 and ISO 11577 protocols.
Is TCSPC capability factory-installed or added later?
TCSPC is an optional field-upgrade; the base FluoroMax+ includes all necessary timing electronics and trigger I/O ports for seamless integration.
How is wavelength accuracy maintained over time?
Automated internal calibration uses a mercury–argon emission lamp and software-driven peak identification routines, with recalibration recommended every 6 months or after major environmental shifts.
Does the system support remote operation and networked data storage?
Yes—FluoroLogic™ supports secure remote desktop access, scheduled acquisitions, and direct saving to network-attached storage (NAS) or cloud repositories via SMB/CIFS protocols.