OLIS CLARiTY CCD
Up to 10 scans/second on solutions and suspensions!
This small ‘spectrophotometer of the gods’ makes you wonder why anyone still uses a cuvette UV/Vis. For inorganic, materials, organometallic, and physical chemistry laboratories that work with powders, suspensions, solids, nanoparticles, films, and even solutions, this absorbance UV/Vis eliminates the need to clarify your sample first. Choose a narrow spectral range configuration for highest sensitivity or choose the 190-1100 nm range for more general application use.
Correct absorbance on light scattering samples from nanoparticles to thin films.
Exquisite sensitivity using minimal sample volume.
Involvement of the entire sample within the sample holder for the measurement
Standard Model Performance
CLARiTY Absorbance UV, Vis, or NIR
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“UV-vis characterization of the Cu-oxide nanocrystals in suspension was measured on an Olis CLARiTY CCD UV-vis spectroscopic system…The optical properties of the five Cu-oxide nanocrystals were measured with a CLARiTY UV-vis spectrophotometer (which is immune to light scattering). The UV-visible spectra of all the Cu-oxide nanocrystals suspended in water exhibited an increase in light absorption between 250 and 600 nm.” Read more.
Dr. Erasmus,University of the Free State
Why Choose the OLIS CLARiTY CCD?
#1
You are ready to stop wasting time, money, and consumables to clarify suspensions, materials, and other light scattering samples
#2
You have no interest in bells & whistle modularity; you want direct daily use and consistency
#3
You love modern, fast, powerful equipment, especially when it’s small and affordable
Full Spectra Fast, Solid-State, Absorbance
The CLARiTY CCD is just like your favorite diode array spectrometer (think Agilent 8453/4, for instance), plus CLARiTY performance. This means fast, easy, correct absorbance on suspensions or solids as well as solutions. You decide what is “clear enough.”
The gold pyramid chassis was inspired by an early CLARiTY owner referring to his as a “spectrophotometer of the gods.” Within this housing is a pulsed xenon source with integrated shutter and a CCD by Avantes. This hardware supports collection of 1-10 full scans per second. Plus, of course, the sample holder unique to CLARiTY spectrometers, the DSPC.
Specify the most narrow range that is practical for you, as this ensures the highest light levels and thus sensitivity, as well as sharpest resolution.
You have freedom to chose any of these gratings for the CCD in your CLARiTY. We advise choosing the narrowest span that is practical. The broader the span, the fewer the photons available for each wavelength. Thus, maximize your sensitivity by holding your span to the useful region.
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The Short and Long of It.
The Short
A single page piece, circa 2014, on using CLARiTY to follow metabolism in the electron transport chain:
“Today, research using a new integrating cavity spectrometer has demonstrated that isolated cell components do not act the same as when those components are in their native environment … when they are not in the environment in which they were designed to function, they may behave differently.”
The Long
A 16 page chapter, circa 2020, on using CLARiTY:
“One thing is certain: one way to understand how a protein functions in an intact organism is to actually observe that protein as it functions in the intact organism. This paper provides an example of just such an observation.”
Setting the new benchmark of performance.
For decades, spectrophotometrically working with turbid suspensions has proved elusive, because the measurement beam is scattered in all directions; only a fraction of it passes through the sample to the detector. “Apparent high absorbance” is the result, as these examples show.
Results from four popular and respected spectrophotometers compared with the Olis CLARiTY 1000
The sample was the most concentrated suspension of polystyrene particles in water (about 108 of the 1 micron particles/mL H2 O) as shown on page 2. Recall, polystyrene particles do not absorb light, so the correct answer is 0.0 AU.
The ubiquitous HP/ Agilent diode array spectrometer returns an answer that is more than 1.1 AU. The world-class dual beam, double monochromator based Cary 14 collected a maximum absorbance near 0.7 AU. As expected, better results were obtained from the “dual wavelength” spectrophotometer which was developed by Britton Chance expressly for the purpose of studying turbid samples.
In its split beam mode, the DW-2 reports absorbance of 0.5 AU and in its dual wavelength mode, an impressive <0.2 AU. Understandably, this dual wavelength model has held the honor as the “gold standard” of performance on turbid suspensions since the 1960s.
The CLARiTY, however, gets zero absorbance, give or take 0.01 AU.
And, as these and other data will show, scatter does not matter to the CLARiTY, including the UV, where even the “gold standard” cannot handle the scatter correctly.
Not sure if you should choose a diode array, CCD, or scanning spectrophotometer?
Reading this may help.
The CLARiTY Advantage
Integrating Cavity UV/Vis Spectrophotometers –CLARiTY Models– are for Clear and Not Clear Samples!
Everyone knows about cuvettes. The most common is a 1 cm² version. Short pathlength cuvettes are the alternative for high absorbance studies. Masked cuvettes are used for low volume samples. Cuvettes must be quartz for UV (nominally 170-400 nm); glass and plastic cuvettes can be used for visible and NIR range. Read more...
OLIS CLARiTY CCD Resources:
Illustrative Experiments with CLARiTY: Check out some of the amazing experiments researchers have done with CLARiTY instruments. What will you do?
