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Showing 1 to 6 of 6 for “"Dinitrophenylhydrazine"”.
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Determination of indoor air quality at the Unlv campus
… building, air samples were collected in 2,4-dinitrophenylhydrazine (2,4- DNPH) solution (using an impinger) and the concentration of formaldehyde, as the addition product with 2,4-DNPH, was determined by HPLC with UV-VIS detection.
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Emissions testing of two recreational marine engines with water contact in the exhaust stream
… a portion of the exhaust stream through 2,4-dinitrophenylhydrazine (DNPH) charged cartridges. Chromatography methods were used for species identification. Detailed descriptions of the testing apparatus, equipment, and analysis procedures used are included. Results for gaseous emissions, …
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Fructose and the Maillard reaction
… fructation), based on the reaction of 2,4-dinitrophenylhydrazine (DNPH) with protein-bound carbonyl groups, is presented. The DNPH assay detects compounds that are intermediates in post-Amadori, or post-Heyns reactions, and precede development of fluorescence. The production of the …
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Validation of Passive Air Sampling Monitors Onboard United States Navy Submarines
… monitors containing adsorbing media of 2,4-dinitrophenylhydrazine (DNPH) and ozone monitors with a sorbent bed of nitrite impregnated glass fibers were evaluated. Active sampling was conducted in accordance with NIOSH Method 2501, NIOSH Method 2016 and OSHA Method ID 214 for acrolein, …
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Sorption Behavior of an Aliphatic Series of Aldehydes in the Presence of Poly(ethylene terephthalate) Blends Containing Aldehyde Scavenging Agents
… formation of aldehyde-hydrazine complexes by 2,4-dinitrophenylhydrazine. Storage of 25 μM mixtures of acetaldehyde, propionaldehyde, butyraldehyde, valeraldehyde, and caproaldehyde in contact with PET films blended with 5% poly(m-xylylene adipamide) (nylon MXD6), D-sorbitol, or …