Overview
Labtro FTIR Spectrometer LT-FS101 directs infrared radiation from its long-life air-cooled IR source into an interferometer containing a coated KBr beamsplitter and precision movable mirror. The beamsplitter divides the infrared beam into separate optical paths, and the returning beams recombine to form an interference signal containing information from many infrared wavelengths simultaneously. This modulated IR beam then interacts with the sample, where specific molecular bonds absorb characteristic frequencies according to their vibrational modes. The high-resolution detector records the resulting interferogram, while the 24-bit, 500 MHz A/D system converts it into digital data. The connected PC applies a Fourier Transform to convert the interferogram into an infrared spectrum showing absorbance or transmittance versus wavenumber. The resulting spectrum can then be used to identify functional groups, compare samples with reference spectra, and characterize material composition. The internal dynamic collimation and precision mirror-drive system help maintain optical alignment during scanning, while the desiccant protects the moisture-sensitive optical components.
Technical Specifications
| Wave Range | 7800 to 350 cm⁻¹ | Resolution | Superior to 0.9 cm⁻¹ |
|---|---|---|---|
| Signal-to-Noise Ratio | >50,000:1 at 4 cm⁻¹ resolution, sample and background scan for 1 min at 2100 cm⁻¹ | RMS Signal-to-Noise Ratio | 250,000:1 |
| Detector | High-Resolution Detector | Beamsplitter | Coated KBr |
| Infrared Light Source | Long-Life, Air-Cooled IR Light Source | Optical Bench | Precision-Machined Cast Aluminium |
| Optical Configuration | Integrated High-Stability Optical System | Interferometer Control | Internal Dynamic Collimation |
| Mirror Drive | Voice-Coil Driver with Precision Slide | Optical Moisture Protection | Internal Desiccant Container |
| Electronic System | 24-bit A/D Converter | A/D Operating Frequency | 500 MHz |
| Computer Interface | USB 2.0 | Operation | PC-Controlled |
| Main Power | 110 to 220 V AC, 50 to 60 Hz | Operating Ambient Temperature | 16 to 25°C |
| Operating Relative Humidity | 20 to 50% RH | Operating-Site Power Requirement* | AC 100 to 240 V, 47 to 63 Hz, 1.2 A, grounded |
| Gross Weight | 15 kg |
Features & Applications
Key Features
High-Stability Optical Bench
Integrates major optical components on a cast-aluminium platform to reduce alignment requirements and improve scan repeatability.Dynamic Interferometer Collimation
Maintains the interferometer in an optimized optical condition during measurement.Precision Mirror Drive System
Uses a voice-coil driver and precision slide for stable scanning under laboratory operating conditions.High Signal-to-Noise Performance
Provides >50,000:1 signal-to-noise ratio and RMS performance up to 250,000:1.Wide Infrared Measurement Range
Covers 7800 to 350 cm⁻¹ for broad material characterization.Moisture-Protected Optics
Integrated desiccant helps protect the KBr beamsplitter and other optical components from humidity.High-Speed Digital Processing
Incorporates a 24-bit A/D converter operating at 500 MHz.PC-Based Operation
Supports spectrum acquisition and analytical processing through connected computer software.USB 2.0 Connectivity
Enables direct communication between the spectrometer and computer.User-Replaceable Components
Certain system components can be replaced by the user, helping reduce maintenance downtime.
Applications
Product Details
FTIR Spectrometer LT-FS101
Standard Accessories: Standard Accessory Quantity FTIR Spectrometer 1 Power Supply 1 Dust Cover 1 USB Cable 1 Power Cord 1 Screwdriver, 150 × 6 mm 1 Allen Wrench, 2.5 mm 1 Replacement Desiccant 1 Polystyrene Film 1 Software CD 1 User Manual 1 Copy
Optional Accessories:
Diamond ATR Accessory
Provides direct FTIR measurement of solids, polymers, rubbers, fibers, films, coatings and small-volume liquid samples with reduced sample preparation. The pure diamond crystal offers durability for routine qualitative infrared analysis.