Analysis of Thiophene in Benzene Using ASTM Method D7011 and a Pulsed Flame Photometric Detector (PFPD)

High purity benzene is key in numerous chemical manufacturing processes. Even very small amounts of thiophene in benzene can poison catalysts making the determination of trace level amounts essential to the petroleum industry. ASTM Method D7011 covers the determination of thiophene in refined benzene using gas chromatography and sulfur selective detection.

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