Olis, Inc DSM 17 Circular Dichroism Spectrometer 圆二色光谱仪 DSM17
The OLIS DSM acquisition achieves zero drift, near-perfect baseline flatness, and outstanding
S/N quickly. Spectral data collection rates start at 0.1 second per datum during scanning and
kinetic data collection rates are up to 1,000 points per second. All electronics and software are
optimized for sensitivity and speed, including a 16 bit, 500 kHz analog-to-digital card. Fully
digital design means that all sorting, summing, ratioing, logarithms, noise filtering, et cetera, of
raw digital data are done by the OLIS CD SpectralWorks program, our fully Windows 7 Pro
compatible software for providing maximum precision in operation and data handling.
The optical bench is the premium prism-grating double monochromator by CARY with an
available spectral range of 185-2600 nm fitted with a 150 watt xenon arc lamp, regulated
power supply and ignitor. For UV CD of protein, peptide, nucleic acid studies, the spectral
data are acquired with the best detector extent: a UV optimized photomultiplier tube. For NIR
scanning (800-1700), the fast response, low noise InGaAs detector can be purchased and
added
The software is a comprehensive data acquisition/analysis/instrument control program which is
easy to use and dense with useful functions. Everything for 2D and 3D data acquisition and
analysis is included. After spectra are acquired, they can be saved as binary, ASCII, Excel, or
JPG. Analysis options include three popular algorithms for secondary structure determination
(SELCON3, CONTINLL, and VARSLC) and an exhaustive selection of 2D data manipulation
choices (smoothing, derivatives, exponentials, subtraction, etc.) as well as kinetic fits. Three
dimensional data acquired during thermal melts, chemical denaturation, and kinetic studies are
analyzed with Singular Value Decomposition (SVD) to determine the number of species in the
reaction, followed by Downhill Simplex and Matrix Exponentiation for spectral reconstruction
of the starting, final, and any spectral intermediate forms.
The Olis Supplied Computer System: OLIS verified and supported desktop PC with 3rd Gen.
Intel Core i3-3240 3.4GHz, 4GB DDR3, 1TB HDD 7,200RPM, DVD-RW drive, 6 Total USB
2.0 Ports. Windows 7 Pro 64-bit (English version required)
Base of the instrument dimensions are approximately 51 x 22". First year warranty covers all
issues; a modestly priced Warranty Renewable Package is available on an annual basis. Made
in the USA
Olis, Inc DSM 17 Circular Dichroism Spectrometer 圆二色光谱仪 DSM17
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