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  • Formaldehyde-DNPH Mix

    Restek

    Sampling for airborne carbonyl compounds in EPA Method TO-11A and other methods is based on a reaction between the target compounds and 2,4-dinitrophenylhydrazine (DNPH), coated on a silica gel adsorbent. We introduced a 15-component aldehyde/ketone-DNPH calibration mix (cat.#31808). To meet the…

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