Reference Standards: US EPA Methods

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Aldehyde-Ketone-DNPH TO-11A Calibration Mix (15 components)

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  • Convenient 15µg/mL concentration, similar to the concentration of interest in most ambient air work.
  • Fast analysis Ultra C18 HPLC column separates 15 aldehydes/ketones in 16 minutes.

Formaldehyde-DNPH Mix

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  • High concentration.
  • Acetonitrile solventsuitable for HPLC analyses.