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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Thermo Fisher Scientific
- 7800 to 350 cm-1 optimized, mid-infrared KBr beamsplitter
11,000 to 375 cm-1 XT KBr extended range mid-infrared optics - 50,000:1 (peak to peak, 1 minute measurements, factory verified)
- 0.25 cm-1
- LightDrive optical engine technology
Agilent Technologies
- 5,200 to 650 cm-1
- Inquire
- 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
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
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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
- 10 to 28,000 cm-1 (far IR or terahertz, mid, near IR, up to the visible or UV)
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- better than 0.2 cm-1
- Vacuum Optics
eralytics GmbH
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JASCO
- 7,800 to 350 cm-1
- 35,000:1
- 0.4, 0.5, 1.0, 2, 4, 8, 16 cm-1
- Center focus, light axis 70 mm high
JASCO
- 7,800 to 350 cm-1
- 47,000 : 1
- 0.25, 0.5, 1.0, 2, 4, 8, 16 cm-1
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JASCO
- 7,800 to 350 cm-1
- 55,000 : 1
- 0.25, 0.5, 1.0, 2, 4, 8, 16 cm-1
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Shimadzu
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- Inquire
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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
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Thermo Fisher Scientific
- 8000 to 350 cm-1
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- Better than 0.6 cm-1
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