Effect of Wavelength on the UV-Degradation of N-Nitrosodimethylamine

摘要

N-Nitrosodimethylamine is potentially carcinogenic to humans. Herein, the effect of wavelength on the UV-degradation of N-nitrosodimethylamine is reported. Medium pressure UV lamp light was filtered by four optical filters and compared with low pressure UV. The degradation rate was the highest in the 230-270 nm wavelength range (7.2 cm2/J) and was nearly three times greater than that observed with low-pressure UV (2.6 cm2/J). Quantum yield was calculated to be 0.42, 1.5 times higher than that observed with low-pressure UV (0.28). Shorter wavelength range light was more effective due to the higher absorption coefficient and quantum yield.View full textDownload full textKeywordsNDMA, Low-pressure UV, Medium-pressure UV, Wavelength, Optical filterRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/01919512.2012.650536