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Determination of benzene, toluene, ethylbenzene, xylenes in water at sub-ng l−1 levels by solid-phase microextraction coupled to cryo-trap gas chromatography–mass spectrometry

✍ Scribed by Maw-Rong Lee; Chia-Min Chang; Jianpeng Dou

No coin nor oath required. For personal study only.

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Determination of benzene, toluene, ethylbenzene, xylenes in water at sub-ng&#xa0;l−1 levels by solid-phase microextraction coupled to cryo-trap gas chromatography–mass spectrometry