science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: isoprene					Other Names: 1,3-butadiene, 2-methyl-

Formula: C5H8						CAS-No.: 78-79-5

Study: uv absorption cross sections


Authors: P. Sahay, S.T. Scherrer, C. Wang

Title: Measurements of the Weak UV Absorptions of Isoprene and Acetone at 261–275 nm Using Cavity Ringdown Spectroscopy for Evaluation of a Potential Portable Ringdown Breath Analyzer

Journal/Source: Sensors, 13, 8170-8187, (2013); doi:10.3390/s130708170


Data: table, diagram

Energy/Wavelength range: 261 - 275 nm

Resolution: 0.001 nm

Temperature: 296 K

Temperature dependence: no

Pressure/Concentration: 

Phase: gas

pH:


Comments: The weak absorption spectra of isoprene and acetone have been measured in the wavelength  range  of  261-275  nm  using  
cavity  ringdown  spectroscopy.  The  measured absorption cross-sections of isoprene in the wavelength region of 261-266 nm range from 
3.65 x 10-21 cm2/molecule at 261 nm to 1.42 x 10-21 cm2/molecule at 266 nm.

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