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Explosives belonging to the group of nitrotoluenes may be readily extracted with C18 adsorbent in the off‐line mode and also in on‐line coupling of the extraction unit to HPLC, while polar explosives like hexyl, HMX, and RDX show a substantial breakthrough and low recoveries. However, these compounds are quantitatively extracted using a new polymeric phase, LiChrolut EN, in the off‐line mode. Preliminary results show that this new adsorbent may in principle also be used in the on‐line mode for explosives. In this case, the cartridges have to be eluted in the backflush mode. Method detection limits of ⩽ 0.1 μg/L are achieved for on‐line extraction of explosives and related compounds with water samples as small as 10…30 mL.
Acta hydrochimica et hydrobiologica – Wiley
Published: Jan 1, 1996
Keywords: ; ; ; ;
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