B&W Tek i-Raman EX Portable 1064 nm Raman Spectrometer

Overview

The B&W Tek i-Raman EX is a high-performance portable Raman spectrometer engineered for field-deployable and benchtop laboratory applications requiring fluorescence-free molecular fingerprinting. Unlike conventional 785 nm or 532 nm Raman systems, the i-Raman EX employs a proprietary CleanLaze® 1064 nm near-infrared laser source, which significantly suppresses autofluorescence from biological tissues, pharmaceutical excipients, polymers, and environmental matrices. This enables reliable detection and identification of analytes that are otherwise obscured by overwhelming fluorescent background—particularly critical in forensic evidence screening, biomedical tissue analysis, and raw material verification in GMP environments. The instrument operates on the principle of inelastic light scattering, where monochromatic 1064 nm photons interact with molecular vibrational modes, producing Stokes-shifted Raman signals collected via fiber-optic coupling and resolved by a thermoelectrically cooled InGaAs linear array detector. Its spectral coverage from 175 cm⁻¹ to 2500 cm⁻¹ encompasses key fingerprint regions for functional group identification (e.g., C–C stretch at 1000–1200 cm⁻¹, C=O at 1650–1750 cm⁻¹), while its ≤9.5 cm⁻¹ resolution ensures sufficient peak separation for multicomponent quantitation without compromising signal-to-noise ratio.

Key Features

• CleanLaze® 1064 nm laser system with <450 mW output and fully linear 0–100% power control in 10% increments—enabling precise photostability optimization across diverse sample classes.
• TE-cooled InGaAs detector operating at −15 °C, delivering a dynamic range of 25,000:1 and 16-bit digitization (65,535 intensity levels) for robust low-light performance.
• Extended integration time range from 200 µs to over 20 minutes—supporting both rapid screening and high-sensitivity trace detection.
• Compact, ruggedized chassis (17 × 34 × 23.4 cm; ~3.5 kg) designed for operation in ambient, mobile, or controlled laboratory settings without external cooling or vibration isolation.
• USB 2.0 interface with 5 V TTL trigger compatibility—ensuring seamless synchronization with automated stages, process lines, or external timing controllers.
• Integrated thermal management and optical path stabilization—minimizing drift-induced wavenumber shift (<±1 cm⁻¹ repeatability over 8-hour operation).

Sample Compatibility & Compliance

The i-Raman EX accommodates solid, liquid, gel, and semi-solid samples via interchangeable fiber-coupled probes—including contact immersion probes, non-contact standoff probes (up to 10 cm working distance), and dedicated liquid cuvette holders. Its 1064 nm excitation allows direct analysis of colored, opaque, or highly fluorescing materials without pretreatment (e.g., dried blood stains, tablet coatings, crude oil fractions, plant extracts). From a regulatory standpoint, the system supports audit-ready workflows compliant with FDA 21 CFR Part 11 when used with BWIQ software’s electronic signature, user access controls, and immutable data logging. It meets ISO/IEC 17025 requirements for method validation in accredited testing laboratories and aligns with ASTM E1840 and USP guidelines for Raman-based identity testing in pharmaceutical manufacturing.

Software & Data Management

The i-Raman EX ships standard with BWIQ™ Multivariate Analysis Software—a validated platform supporting PCA, PLS regression, hierarchical clustering, and spectral library matching (NIST, commercial, and user-built). All spectra are stored in vendor-neutral .spc or .csv formats with embedded metadata (timestamp, laser power, integration time, calibration coefficients). BWIQ includes built-in GLP/GMP features: full audit trail, role-based permissions, electronic signatures, and automatic report generation (PDF/Excel) with customizable templates. Raw data integrity is preserved through write-once-read-many (WORM) archive options and optional network-attached storage (NAS) integration. Firmware updates and spectral calibration files are digitally signed to ensure traceability per ICH Q5A and ISO 9001 documentation standards.

Applications

• Forensic Science: Non-destructive identification of illicit drugs, explosives residues, inks, and trace evidence on fabrics or skin surfaces.
• Biomedical Diagnostics: Label-free discrimination of cancerous vs. normal tissue margins during intraoperative assessment; monitoring protein conformational changes in biofluids.
• Pharmaceutical QA/QC: Polymorph screening of active pharmaceutical ingredients (APIs), counterfeit drug detection, and blend uniformity analysis in real time.
• Environmental Monitoring: In situ detection of hydrocarbon contaminants in soil/water, microplastic identification, and pesticide residue mapping on produce.
• Petrochemical Analysis: Quantitative determination of sulfur compounds, aromatic/aliphatic ratios, and oxidation products in lubricants and fuels.
• Food & Agriculture: Authentication of honey adulteration, detection of melamine in dairy, and ripeness assessment of fruits via carotenoid Raman bands.

FAQ

Is the i-Raman EX suitable for quantitative analysis?
Yes—when coupled with BWIQ’s PLS regression modules and appropriate calibration standards, it delivers RSD <3% for concentration measurements across validated ranges (e.g., API content in tablets, ethanol in beverages).
Does the system require external calibration standards for routine use?
No—factory-installed NIST-traceable polystyrene and silicon reference peaks provide daily wavenumber calibration; optional automated self-check routines validate alignment and sensitivity pre-run.
Can the i-Raman EX be integrated into automated production lines?
Yes—its TTL trigger input, programmable USB command set, and Modbus TCP support enable direct PLC interfacing for inline quality control in continuous manufacturing environments.
What safety certifications does the instrument hold?
It complies with IEC 60825-1:2014 (Class IIIB laser product), UL 61010-1, and CE marking for electromagnetic compatibility (EMC Directive 2014/30/EU) and low voltage (LVD Directive 2014/35/EU).
Is remote diagnostics and firmware update supported?
Yes—via secure HTTPS-based portal with encrypted firmware signing; all updates include version-controlled release notes and backward-compatible configuration migration.