methylglyoxal (CH3C(O)CHO = CH3CO + HCO) pressure dependent quantum yields (298 K)

IUPAC 2005 Recommendation
http://www.iupac-kinetic.ch.cam.ac.uk

Chen, Y., W. Wang, and L. Zhu, Wavelength-dependent photolysis of methylglyoxal 
in the 290-440 nm region, J Phys Chem A, 104, 11126-11131, 2000

zero pressure quantum yields are unity from 280 to 380 nm

Apply Stern-Volmer relationship

lambda (nm)	phi (zero)	phi (760 Torr)
290	1	0.993030416
300	1	0.981081516
310	1	0.952710926
320	1	0.892510118
330	1	0.783124914
340	1	0.622525325
350	1	0.440624798
360	1	0.28161113
370	1	0.168454685
380	0.92	0.09696674
390	0.89	0.056109539
400	0.56	0.032126805
410	0.32	0.018768341
420	0.27	0.011457273
430	0.2	0.007092255
440	0.17	0.004497625