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Used IR Spectrometers and others type

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Thermo-Nicolet PROTÉGE-460 FTIR Spectrometer This PROTAGE-460 FTIR has equipped with a KBr Beam Splitter,... Location : AMERICA North (USA-Canada-Mexico)

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Display Mode: Optical Rotation Sptical Rotation, Specific Rotation Concentration, Sample holder Record output,... Location : AMERICA North (USA-Canada-Mexico)

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Spectral range of 7800 – 350 cm-1 Location : AMERICA North (USA-Canada-Mexico)

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Automated High-Throughput Circular Dichroism (HTCD / FDCD) Applications include peptides, proteins, nucleic ac... Location : AMERICA North (USA-Canada-Mexico)

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Brand: AVIV 400 410 420 Research-Grade Circular Dichroism (CD) Spectrometer Aviv model 400 Circular Dich... Location : AMERICA North (USA-Canada-Mexico)

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JASCO J-715 Circular Dichroism (CD) Spectropolarimeter This JASCO J-715 is a Research-Grade Circular Dich... Location : AMERICA North (USA-Canada-Mexico)

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JASCO DIP-1000 Digital Polarimeter This JASCO DIP-1000 Spectropolarimeter consists of the following; a M... Location : AMERICA North (USA-Canada-Mexico)

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Brand: AVIV 202 Research-Grade Circular Dichroism (CD) Spectrometer This Aviv model 202 Research-Grade C... Location : AMERICA North (USA-Canada-Mexico)

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JASCO P-1010 Polarimeter This JASCO P-1010 Spectropolarimeter(115V AC) has equipped with a System Control... Location : AMERICA North (USA-Canada-Mexico)

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JASCO P-1010 Digital Polarimeter w/ PC.SW This JASCO P-1010 Spectropolarimeter(115V AC) is controlled by... Location : AMERICA North (USA-Canada-Mexico)

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JASCO J-810 CD (Circular Dichroism) Spectrometer For Sale A preowned JASCO J810 circular dichroism (CD) s... Location : AMERICA North (USA-Canada-Mexico)

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JASCO J-815 J-810 Research-Grade Circular Dichroism (CD) Spectrometer The JASCO J-815 & J-810 CD spectrom... Location : AMERICA North (USA-Canada-Mexico)

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JASCO J-810 HTCD (HighThrough-Put Circular Dichroism) Spectrometer For Sale JASCO developed the high-thro... Location : AMERICA North (USA-Canada-Mexico)

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SMART Multi-Bounce HATR, Thermo-Nicolet Avatar 360/370/380 FT-IR a SMART Multi-Bounce HATR for Thermo-Nic... Location : AMERICA North (USA-Canada-Mexico)

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Thermo-Nicolet AVATAR 380, 370 w/ Smart OMNI-Sampler a Mid-IR spectrometer for routine-use/used to collec... Location : AMERICA North (USA-Canada-Mexico)

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Foss NIRSystems XDS Rapid Liquid Analyzer, Near Infrared Spectrophotometer The FOSS XDS Rapid Liquid Anal... Location : AMERICA North (USA-Canada-Mexico)

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Thermo-Nicolet AVATAR 370 FT-IR Spectrometer A Mid-IR spectrometer for routine-use/used to collect FT-IR... Location : AMERICA North (USA-Canada-Mexico)

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<b> 1x Thermo-Nicolet, AVATAR 380, 370 w/ Smart OMNI-Sampler Description </b> A Mid-IR spectrometer for r... Location : AMERICA North (USA-Canada-Mexico)

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<b> 1x Thermo-Nicolet, AVATAR 380, FT-IR Spectrometer Description </b> A nice FT-IR spectrometer for R&D... Location : AMERICA North (USA-Canada-Mexico)

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<b> 1x Thermo-Nicolet, AVATAR 370, FT-IR Spectrometer Description </b> A Mid-IR spectrometer for routine... Location : AMERICA North (USA-Canada-Mexico)

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has equipped with a System Control Portable PC Touch Screen LCD, Factory-installed Program Software V.1.07 and... Location : AMERICA North (USA-Canada-Mexico)

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Foss NIRSystems 6500 Feed & Forage Analyzer, Sample Spinning Model The unique design feature of this Foss... Location : AMERICA North (USA-Canada-Mexico)

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You 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

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