Used IR Spectrometers and others type
33 resultsConsisting of: SP2 NIR InGas. Spectrum 10 Software Kit. NIRM - Near Infrared Reflectance. NIRA II 100mm Spinne Year(s) : 2021 Location : EUROPE (Western and Northern)
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More detailsFT-IR Spectrometer with Pike Miracle ATR Location : AMERICA North (USA-Canada-Mexico)
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More details<b> 1x Hach, DR - 3000, Spectrophotometer Description </b> Manufacturer: Hach Company Model: 19600 - 00 Condi Location : AMERICA North (USA-Canada-Mexico)
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More details<b> 1x Bausch & Lomb, Spectronic 21, Spectrophotometer Description </b> Manufacturer: Bausch & Lomb Model: S Location : AMERICA North (USA-Canada-Mexico)
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More detailsAnalyzer with manual pipetting. For ethanol, pH, sugar and organic acids. Analysis time: 30 seconds. Sample te Year(s) : 2018 Location : EUROPE (Western and Northern)
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More detailscomplete with chiller, autosampler and PC workstation Location : AMERICA North (USA-Canada-Mexico)
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More detailsRefurbished Shimadzu AA-7000 double beam Atomic Absorption Spectrophotometer Complete with Shimadzu WizAArd 5 Location : AMERICA North (USA-Canada-Mexico)
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More detailsFEATURES Wave number range 4000 to 600 cm EZ-scan software for instrument control and data acquisition 2 cm-1 Location : AMERICA North (USA-Canada-Mexico)
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More detailscomplete with THGA-700 transverse heated graphite atomizer Perkin Elmer furnace cooling system (p/n 198072) an Location : AMERICA North (USA-Canada-Mexico)
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More detailsLight Source: Tungsten Halogen Spectral Bandwidth: 4nm Wavelength Range: 320-1100nm Specifications Stray light Location : EUROPE (Western and Northern)
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More detailsBrand: Fisons 771 Kevex EDX-771 X-Ray Spectrometer System 9416 Price: $10,500.00 Fisons 771 Kevex EDX-771 Location : AMERICA North (USA-Canada-Mexico)
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More detailsBrand: Hitachi U-4001 Spectrophotometer Model #: U-4001 This is Hitachi U-4001 Spectrophotometer. This unit Location : AMERICA North (USA-Canada-Mexico)
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More detailsWith Omnic Spectra Softre. Sample holder and lid for transfer. New laser installed in 2022. Location : EUROPE (Western and Northern)
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More detailsIncl. Rondelle for 30 samples. Spectral range 800-1900nm 230V. 50 / 60Hz. 1.6A. Device is in good condition. Location : EUROPE (Western and Northern)
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More detailsNanoDrop ND-1000 Spectrophotometer Computer Cables and connectors Location : AMERICA North (USA-Canada-Mexico)
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More detailsSpectral Bandwidth: 5 nm Optical System: Split-bleam, grating-based, dual detectors Lamp Source: Xenon Wavelen Location : AMERICA North (USA-Canada-Mexico)
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More detailsSpecifications Light source: Deuterium lamp, tungsten halogen lamp Wavelength rang: 190-900nm 190-370nm (deut Location : AMERICA North (USA-Canada-Mexico)
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More details<b> 1x Thermo/Nicolet Nexus, 470 ESP, FT-IR Spectrometer Description </b> This spectrometer boasts high perfo Location : AMERICA North (USA-Canada-Mexico)
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More detailswith Spectrum Spotlight 300 FT-IR Imaging System Location : AMERICA North (USA-Canada-Mexico)
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More details- With HATR Sampling Accessory, Diffuse Reflectance Sampling Accessory, Universal ATR Sampling Accessory Per Location : AMERICA North (USA-Canada-Mexico)
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More detailsYou can find used IR Spectrometers and others type on Wotol
The main manufacturers of IR Spectrometers and others type are Perkin Elmer, Thermo Nicolet, Jasco, Foss, Nicolet, Bruker, Shimadzu, Thermo Electron, Varian, Agilent, Thermo, Alere, Magna.
Find the right Spectrophotometer or Instrumental color measurement with our expert
This instrument has lens, light source, difraction gratting or prism and color analyser.
What is "Color" ? When we see the object and then we say the color is Blue , do you know why ?
It is because object reflected Blue color and adsorb other color. To see colors we need: Object, illuminant (light source), observer (Eyes or Lens) and then Brain or Analyser will calculate so we have "Color"
Our eyes always see what refelected by object. Similar case with Spectrophotometer it can measure reflectance and transmitance.
The next step would be the physical measurement of the
object, for reflected (or transmitted) light, by a color spectrophotometer. The basic information provide by the “spectro” is simply the wavelength reflectance values across the visible spectrum, known as spectral data, which can be displayed as a spectral curve.
Now 2 of the 3 elements of the observer situation are represented as numbers.
Spectral reflectance data
- Spectral measurement range:
380nm to 730nm
- Reflectance range
"Normal" samples: 0% to 100%
(100% = perfect white diffusor 0% = perfect black)
Effect samples: up to 300% (for small aspecular angles)
Fluorescent colors: up to 200%
Color identification
Spectral information under defined geometrical conditions is the fingerprint of a color
The spectral information can be transformed so that colors can be arranged in a 3 - dimensional color space
Every color has a unique "address" color space
The "address" is valid for a certain illuminant (D65 or A or TL84 or others) and for a certain observer (2° or 10°) and for a certain geometry (d/8°, 45°/0° or others) !
Changing illuminant and/or observer and/or geometry in most cases will result in a different "address" in color space for the same sample
Color order system, color space
CIE L*a*b* 1976
Based on the Munsell system
L* a* b* are the primary coordinates
L*: Lightness direction
a*: red - green direction
b*: yellow - blue direction
CIE Lab system is industry standard
CIE Lab system version 2
C*, h: Same facts, different description
polar coordinates instead of kartesian coordinates
Chroma (independent of hue)
C*= (a*2 + b*2) 1/2
Hue angle (independent of chroma)
h= arctan (b* / a*) counterclockwise, starting at positive a* axis with h = 0°
Color difference description
Most important for industrial use
Color difference is the distance in color space between two adresses", e.g. between the "adress" of a standard and the "adress" of a trial.
The color difference has 3 components:
Lightness difference dL*=L*trial - L*standard
red-green difference da*=a*trial - a*standard
yellow-blue difference db*=b*trial - b*standard
Total color difference dE* is calculated from the 3 components:
dE*= (dL*2 + da*2 + db*2) 1/2
Same facts, different description
dE*= (dL*2 + dC*2 + dH*2) 1/2
Chroma difference dC* = C*trial - C*standard
Hue difference dH*= (da*2 + db*2 - dC*2) 1/2
sign dH*: positive if
a*trial b*standard - a*standard b*trial R0 else negative.
Attention: dH* is a distance in color space and not the difference of the hue angles htrial - hstandard !!!
But the computer has no problem with the slightly complicated calculation
Common brand:
Datacolor, GretagMacbeth, Hunterlab, Kurabo, Macbeth, Minolta and Xrite