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| 245 | 0 | 0 | _aDetection of polyaromatic sulfur heterocycles in crude oil using postcolumn addition of tropylium and tandem mass spectrometry |
| 270 | _a12/09/06 ; 12/09/2005 | ||
| 300 | _a8 p. | ||
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_tEnergy & fuels _gVol. 19, no. 4 (jul.agos. 2005) ; p. 1611-1618 |
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