Use of isotopic analysis for determination of aromatic...

C - Chemistry – Metallurgy – 07 – C

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C07C 2/76 (2006.01) C07C 2/66 (2006.01)

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CA 2652962

Benzene and xylene are described having a unique distribution of deuterium and 13C such that .delta.(deuterium) for each of the benzene and xylene is less than -250 and .delta.(l3C) for the benzene is greater than -36 and for xylene is less than -24, wherein .delta.(deuterium) = (R'sample/R'standard -1) X 1000 where R'sample is the ratio of deuterium to hydrogen in the benzene/xylene; and R'standard is the ratio of the natural abundance of deuterium to the natural abundance of hydrogen; and wherein .delta.(13C) = (R"sample/R"standard - 1) X 1000 where R"sample is the ratio of 13C to 12C in the benzene/xylene; and R"standard, is the ratio of the natural abundance of 13C to the natural abundance of12C.

L'invention concerne du benzène et du xylène ayant une distribution unique de deutérium et de 13C, telle que .delta.(deutérium) pour chacun du benzène et du xylène soit inférieur à -250 et .delta.(l3C) pour le benzène soit supérieur à -36 et pour le xylène soit inférieur à -24, avec .delta.(deutérium) = (R'échantillon/R'standard -1) X 1000, R'échantillon étant le rapport entre le deutérium et l'hydrogène dans le benzène/xylène ; et R'standard étant le rapport entre l'abondance naturelle de deutérium et l'abondance naturelle d'hydrogène ; et avec .delta.(13C) = (R'échantillon/R'standard - 1) X 1000 ; R'échantillon étant le rapport entre 13C et 12C dans le benzène/xylène ; et R'standard étant le rapport entre l'abondance naturelle de 13C et l'abondance naturelle de 12C.

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