An infrared spectrophotometer is an analytical instrument used to identify materials including organic polymers. Infrared spectrophotometers record the relative amount of energy as a function of the wavelength/frequency of the infrared radiation when it passes through a sample. Therefore, chemical structures of different samples will reflect differences in the IR absorption spectrum allowing for identification of a sample. Unlike a dispersive spectrometer, an FTIR spectrometer or FTIR spectrophotometer is used to simultaneously obtain spectral data of a sample. It does this by using an interferometer to collect the interferogram, also known as the raw data/signal format, which can then be translated into the infrared spectrum of the sample by means of a fourier transform algorithm. As a result, there are many advantages including greater signal-to-noise ratio, high resolution, higher throughput, and a short wavelength limit. FTIR spectrometers can be used in a variety of industries including environmental, pharmaceutical, and petrochemical.
Find, compare, and request a quote for infrared spectrophotometers across leading suppliers at Labcompare; including access to product citations, related published figures, and first-hand reviews from our scientific community.
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Shimadzu
- 350 to 7800 cm-1
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- Inquire
- KBr beam splitter includes a humidity-resistant coating (IRSpirit-TX/LX), or ZnSe beam splitter (IRSpirit-ZX)*1. Optics sealed in an aluminum die-cast housing
Agilent Technologies
- 5,200 to 650 cm-1
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- 4 to 16 cm -1
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Agilent Technologies
- 4000 to 650 cm-1
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- 2 to 16 cm-1
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Agilent Technologies
- 4,000 to 650 cm-1
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- 2 to 16 cm -1
- Low Powered Solid State Laser
Agilent Technologies
- KBr 7,000 to 350 cm-1
ZnSe 5,100 to 600 cm-1 - Inquire
- ≤2 cm-1
Bruker Optics
- 350 to 8000 cm-1 with standard KBr beamsplitter
500 to 6000 cm -1 option High Humidity ZnSe optics - > 55,000:1
- Better than 2 cm-1, optional better than 0.75 cm-1
- KBr windows and beamsplitter, optional High Humidity optics with ZnSe beamsplitter and ZnSe windows
Bruker Optics
- σ = 700 – 5000 cm-1 (active mode)
σ = 700 – 3800 cm-1 (active mode with ultrafast scanning)
σ = 700 – 2200 cm-1 (passive mode) - Inquire
- Δσ = 1 cm-1 (0.5 cm-1 optional)
- KBr or ZnSe (option) beam splitter f0.9. Throughput: 0.0082 sr cm2
Bruker Optics
- 5 to >50,000 cm-1 (far-IR to UV)
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- 0.008 cm-1
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Bruker Optics
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- 60’000:1 1 min sample measurement, 4 cm-1, peak-to-peak
- < 0.085 cm-1
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Bruker Optics
- 4800 - 720 cm-1 (other ranges optional)
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- Better than 1 cm-1 (apodized) | Option: Better than 0.5 cm-1
- PTFE-coated gas cell with 10 cm optical path
Bruker Optics
- 4500 – 800 cm-1
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- Better than 2 cm-1, option: better than 1 cm-1
- Multi-reflection cell
Bruker Optics
- 10 to 28,000 cm-1 (far IR or terahertz, mid, near IR, up to the visible or UV)
- Inquire
- better than 0.2 cm-1
- Vacuum Optics
Edinburgh Instruments Ltd
- 8000 - 350 cm?¹
- = 20,000:1
- 0.5 cm?¹, 1 cm?¹, 2 cm?¹, 4 cm?¹, 8 cm?¹, 16 cm?¹, 32 cm?¹
- Michelson interferometer with solid-state reference laser and Germanium coated KBr beamsplitter
PerkinElmer
- 8,300-350 cm?¹ (KBr); 7,800-225 cm?¹ (CsI); 11,000-375 cm?¹ (extended range dual source); up to 11,000-30 cm?¹ (Tri-Range MIR/NIR/FIR)
- 10,000:1 peak-peak (5 seconds); 34,000:1 peak-peak (1 minute)
- 0.4 cm?¹
- Improved rotary Michelson interferometer, self-compensating for dynamic alignment changes; high reflectivity first-surface aluminum-coated optics; KBr beamsplitter (standard); high performance lithium tantalate pyroelectric detector; two permanently installed internal detectors plus external detector via GPOB
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PerkinElmer
- 8,300-350 cm?¹ (KBr); 6,500-550 cm?¹ (ZnSe optics)
- 9,300:1 peak-peak (5 seconds); 32,000:1 peak-peak (1 minute); 14,500:1 peak-peak (5 seconds) / 50,000:1 peak-peak (1 minute) with optional performance pack
- 0.5 cm?¹
- Rotary Michelson interferometer, self-compensating for dynamic alignment; sealed and desiccated optical unit with OpticsGuard design; vibration isolated baseplate; proprietary extended range KBr beamsplitter; high linearity room temperature detector (LiTaO3 standard, DTGS optional)
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Shimadzu
- 7,800 to 350 cm-1
- Varies by model used
- 0.9, 2, 4, 8, 16 cm-1
- Single Beam
Shimadzu
- 7,800 to 350 cm-1 (Standard); 12,500 to 240 cm-1 (Optional)
- 60,000:1
- 0.25, 0.5, 1, 2, 4, 8, 16 cm-1 (Middle/Far IR); 2, 4, 8, 16 cm-1 (Near IR)
- Single-beam optics
Shimadzu
- 7,800 to 350 cm-1
- 55,000:1
- 0.25, 0.5, 1, 2, 4, 8, 16 cm-1
- Single Beam
Thermo Fisher Scientific
- Depends on model
- 50,000:1 (guaranteed)
60,000:1 (typical) - Better than 0.25 cm -1
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Thermo Fisher Scientific
- 15 to 27,000 cm-1
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- Better than 0.09 cm-1
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Thermo Fisher Scientific
- 6000 to 650 cm-1
- Inquire
- Inquire
- Inquire
Thermo Fisher Scientific
- 8000 to 350 cm-1
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- Better than 0.6 cm-1
- Inquire
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