References
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- Tunnicliff , D. D. , Brattain , Robert H. and Zumwalt , L. R. 1949 . Benzene, toluene, ethylbenzene, o‐xylene, m‐xylene, and p‐xylene. Determination by Ultra‐Violet Spectrophotometry . Anal. Chem. , 21 : 890 – 4 .
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