Thermo Scientific Nicolet iS5 Fourier Transform Infrared (FT-IR) Spectrometer
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | Nicolet iS5 |
| Instrument Type | Laboratory FT-IR Spectrometer |
| Wavenumber Range | 350–7800 cm⁻¹ |
| Spectral Resolution | Better than 0.8 cm⁻¹ |
| Scan Speed | Up to 10 scans per second |
| Signal-to-Noise Ratio (SNR) | > 1 × 10⁵ (peak-to-peak, 4 cm⁻¹ resolution, 1 min scan) |
Overview
The Thermo Scientific Nicolet iS5 Fourier Transform Infrared (FT-IR) Spectrometer is an entry-level, benchtop FT-IR system engineered for routine chemical identification, quantitative analysis, and material verification in regulated and non-regulated laboratory environments. Based on Michelson interferometry, the instrument acquires full-spectrum infrared absorption data by measuring the interference pattern (interferogram) generated from broadband IR radiation split and recombined after reflection from fixed and moving mirrors. The resulting interferogram is digitized and Fourier-transformed to produce high-fidelity absorbance or transmittance spectra across the mid-infrared region (350–7800 cm⁻¹). Its compact, vibration-tolerant optical design—featuring a permanently aligned, sealed interferometer with KBr beamsplitter and DTGS detector—ensures long-term spectral stability and minimal maintenance. Designed for operational continuity in QC labs, production support areas, and teaching facilities, the Nicolet iS5 delivers reproducible results without requiring cryogenic cooling or complex alignment procedures.
Key Features
- Robust, space-efficient benchtop architecture with integrated sample compartment and front-accessible ATR accessory port
- Permanently aligned, sealed interferometer with high-stability He–Ne laser reference for precise wavenumber calibration
- DTGS (deuterated triglycine sulfate) detector optimized for ambient-temperature operation and broad dynamic range
- Automated purge control interface compatible with dry air or nitrogen purge systems to minimize atmospheric CO₂ and H₂O spectral interference
- Front-panel touchscreen with intuitive icon-driven workflow navigation—no external PC required for basic acquisition
- Modular accessory compatibility including Smart iTR™ ATR (single-bounce diamond/ZnSe), transmission cells, and reflectance stages
Sample Compatibility & Compliance
The Nicolet iS5 supports solid, liquid, and semi-solid samples via standardized techniques: attenuated total reflectance (ATR), transmission, and diffuse reflectance. Its Smart iTR™ ATR accessory enables rapid, solvent-free analysis of polymers, coatings, pharmaceutical tablets, and biological tissues with minimal sample preparation. All spectral acquisitions comply with ISO 17025 documentation requirements when used with OMNIC software’s audit-trail-enabled workflows. The system supports 21 CFR Part 11-compliant user authentication, electronic signatures, and secure data archiving when configured with OMNIC Paradigm™ or OMNIC Enterprise™. It meets ASTM E1421 (Standard Practice for Describing and Measuring Performance of FT-IR Spectrometers) and is routinely validated for USP (Infrared Absorption Spectrophotometry) applications in pharmaceutical quality control.
Software & Data Management
Controlled exclusively by Thermo Scientific OMNIC™ software (v12.x or later), the Nicolet iS5 provides a unified platform for instrument control, spectral processing, library searching (including Sadtler, Polymer, and Pharmaceutical libraries), and reporting. OMNIC includes built-in tools for baseline correction, peak integration, spectral subtraction, and multivariate analysis (PCA, PLS). Data files are stored in proprietary .spa format with embedded metadata (operator ID, date/time stamp, instrument configuration, and acquisition parameters). Raw interferograms and processed spectra can be exported in JCAMP-DX, CSV, or ASCII formats for third-party chemometric software integration. OMNIC Enterprise enables centralized instrument management, role-based access control, and automated report generation compliant with GLP/GMP documentation standards.
Applications
- Raw material identity testing (RMIT) and incoming inspection in pharmaceutical and chemical manufacturing
- Coating thickness estimation and polymer blend composition analysis in automotive and packaging R&D
- Contamination identification on electronic components and medical device surfaces
- Forensic fiber and paint chip analysis using spectral library matching
- Teaching spectroscopy fundamentals in undergraduate chemistry and materials science curricula
- Stability-indicating method development for accelerated degradation studies
FAQ
What accessories are standard with the Nicolet iS5?
The base system includes the spectrometer, OMNIC software license, power supply, and USB cable. The Smart iTR™ ATR accessory is available as a factory-configured option or separately ordered.
Is the instrument suitable for GMP-regulated environments?
Yes—when deployed with OMNIC Enterprise and configured with user access controls, electronic signatures, and audit trail logging, it satisfies key elements of FDA 21 CFR Part 11 and EU Annex 11 requirements.
Can the Nicolet iS5 perform quantitative analysis?
Yes—using OMNIC’s quantitative module with internal standardization or calibration curve generation, users can achieve linearity R² > 0.999 for well-characterized analytes such as residual solvents or active pharmaceutical ingredients.
What maintenance is required beyond routine purging?
No optical realignment is needed; annual verification of wavenumber accuracy and photometric linearity using NIST-traceable polystyrene film is recommended per ISO/IEC 17025 guidelines.
Does the system support external detectors or custom sampling interfaces?
While the standard configuration uses a DTGS detector, optional MCT (mercury cadmium telluride) detectors with liquid nitrogen cooling are supported for higher sensitivity applications—subject to hardware retrofit and software licensing.
