ATR-FUV far-ultraviolet spectrometer

Product Details

By using a nitrogen-purged spectrometer and using the attenuated total reflection method (ATR method), this device can measure the far-ultraviolet spectrum of liquids in the far-ultraviolet region (wavelength 145 to 300nm), which was not possible with conventional methods .

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• Features:
  

• Far UV region and ATR method:

What is Attenuated Total Reflection (ATR)?

　This is a method of observing an absorption spectrum using light called an evanescent wave, which slightly seeps out from the surface of a reflective element during total reflection . The feature is that the light penetration depth is very short, about the wavelength.

Measurement Data:

The absorption coefficient of water in the far-ultraviolet region (145 nm~) is extremely large, ten times stronger than the infrared OH stretching vibration band, and the absorbance exceeds 1 even with a cell length of 100 nm. This device uses the attenuated total reflection method (ATR method),

For the first time in the world , we have made it possible to observe temperature changes in the A ~ ←X ~ transition absorption band of water .

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Until now, far-ultraviolet spectroscopy was mostly used for gas phase research, but by using the attenuated total reflection method (ATR method), it can be applied to liquids and solids that have not been measured before . Now possible .

Reference Paper:

・Analytical Chemistry / Vol.60 (2011) No.1 p.19-31 Analysis of water and aqueous solutions by far-ultraviolet spectroscopy　https://www.jstage.jst.go.jp/article/bunsekikagaku/60/1/60_1_19/ _article/-char/ja

Akifumi Ikehaneda, Goki Goto, Yusuke Morisawa, Noboru Azuma, Yukihiro Ozaki

・Analytical Chemistry/Vol.66(2017) No.5 p.319-331 New applications of far-ultraviolet spectroscopy

https://www.jstage.jst.go.jp/article/bunsekikagaku/66/5/66_319/_article/-char/ja

Ichiro Tanabe, Goki Goto, Yusuke Morisawa, Yukihiro Ozaki

*The irradiation wavelength in the photo is 550nm*

• Specification:

• Standard Configuration:

• Option:
  
  

• Diagram:

• External Dimension:

- Body: about W1200 x D900 x H1450mm

- Weight: about 400Kg

- Nitrogen pipe: IN Swegelok1/4

　　　　　:OUT Swegelok3/8