Version 8. Besides many detail improvements for optimized work flow OPUS 8. Support engineers are advised to regularly check with Bruker for updated information. Bruker is committed to providing customers with inventive, high quality products and services that are environmentally sound.
OPUS is the leading spectroscopy software for state-of-the-art measurement,. A product is defined by its membership in a specific product group, and its user- Quick Compare: Perform opus quick compare of the standards to see how the instrument is performing refer to the MPA Technical manual. Data Validation a. Data Review Check the sample data and QC data to verify that the data to be reported is based on acceptable analyses and meet acceptable limits.
The information in this manual may be altered without notice. BRUKER accepts no liability for any mis- takes contained in the manual, leading to coincidental damage, whether during installation or operation of the instrument. Normally, the installa-tion starts automatically. If the Windows Autostart option is disabled, you have to start the installation manually by running the Setup program from the stick. There is no official document to be published regarding the file format.
The precise air bearing and high quality optics provide the ultimate in sensitivity and stability. Up to three external beam ports and two focused input ports are available for adding any of the many external accessories available from Bruker Optics. Regardless of how well you purge your FTIR, water vapor and other interferents can show up as undesired peaks in your spectra. But there IS an alternative: By constructing a vacuum housing for the spectrometer it is possible to record spectra free from gas phase interferents such as H2O or CO2.
Bruker has been building vacuum FT-IRs for more than 25 years and has installed hundreds of vacuum benches all around the globe. A vacuum environment provides outstanding sensitivity and stability, especially for measurements in the FIR region. An extended range FIR beamsplitter allows measurements from approximately to 20 cm-1 without using multiple mylar films. High Performance for all wavelength ranges Traditionally FIR has always posed a problem for infrared analysis due to low throughput and the high absorbance of water vapour in the region.
Working in a vacuum environment significantly improves the spectral quality in this region, especially for high resolution measurements. A broadband light beam is guided into the interferometer, consisting of a fixed mirror, a movable mirror, and a beam splitter. Depending on the position of the movable mirror scanner , wave interference modulates the recombined beam, resulting in an interferogram intensity over path difference. For a precise measurement of the optical path difference between the interferometer arms, a HeNe laser is used.
If a sample is placed in the beam path, the interferogram is modified due to the optical properties of the sample. Multiple cryogenic systems are combinable with the spectrometer. For instance, a LiHe-flow cryostat equipped with an in-situ gold evaporation unit allows to precisely measure the reflectance of a sample down to temperatures as low as 3 K.
For transmission geometry, a LiHe-bath cryostat is used. As well, the spectrometer can be operated together with a superconducting magnet Oxford instruments and LiHe-flow cryostat to measure reflectance or transmittance under external magnetic field up to 7.
Fourier Transformation gives the spectrum intensity over wavelength. By measuring a reference, for instance, a gold mirror or the empty beam path, reflectance and transmittance are obtained, respectively.
To obtain the optical conductivity, often a Kramers-Kronig analysis is used to calculate the phase information from the spectra.
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