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Data Acquired with the Olis RSM 1000 Spectrophotometers
(Select the smaller images to view a larger, more detailed image)

Real 5 Exponential Data

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Configuration: Absorbance
Collection Mode: Rapid Scanning Stopped-Flow
Acquisition Time: 20 seconds (60 scans/second)
Description: Iain Matheson’s application of Matrix Exponentiation allowed him to quickly write another case for testing the kinetics of an unusually complicated data set acquired by the RSM for a group at the University of Washington. As you see, this

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– a six distinct species, five distinct rates – was achieved with his data.

This is phenomenal. If we thought fitting the five species, four rates was extraordinary, we now are even more astonished. This is unprecedented, unparalleled and truly incredible. There is no fitting algorithm in the world which even pretends to fit such a complicated process.

Secondly, the photometric accuracy and linearity of the RSM must be very high to achieve data which can be fit in this way. The very fact that data can be fit tells us that the linearity must be exceedingly good.

These data have S/N of about 500.  Click here for more detailed information.

Comparison of RSM & DW-2 Data Collection

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Configuration: Absorbance
Collection Mode: Rapid Scanning
Acquisition Time: RSM Data were acquired in 1 second
Description: The data shown above (courtesy of Dr. Bernard Trumpower) a direct comparison is made between the Olis RSM when used in its rapid scanning absorbance configuration and the Aminco DW2A. The displayed data- with very low noise- are the fitted result of 1,000 millisecond scans. The DW2 data were acquired in the Aminco's normal mode of operation, with collection time being several minutes for this singular scan.

Raman of Water

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Configuration: Fluorescence
Collection Mode: Rapid Scanning, average mode, 10 scans per second
Acquisition Time: 10 seconds; total of 100 scans
Description: The data above depict a Raman scattering signal from distilled water with an excitation wavelength of 350 nm. Excitation bandwidth is 40 nm and emission bandwidth is 10 nm. 10,000 emission scans were acquired during these 10 seconds and were fitted to a "zero order" exponential fit.

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