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.
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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)
- Inquire
- 0.008 cm-1
- Inquire
Bruker Optics
- Inquire
- 60’000:1 1 min sample measurement, 4 cm-1, peak-to-peak
- < 0.085 cm-1
- Inquire
Bruker Optics
- 4800 - 720 cm-1 (other ranges optional)
- Inquire
- 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
- Inquire
- 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
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