Methanol and formaldehyde determination by colorimetry using alcohol oxidase.
نویسندگان
چکیده
منابع مشابه
Atmospheric methanol measurement using selective catalytic methanol to formaldehyde conversion
A novel atmospheric methanol measurement technique, employing selective gas-phase catalytic conversion of methanol to formaldehyde followed by detection of the formaldehyde product, has been developed and tested. The effects of temperature, gas flow rate, gas composition, reactor-bed length, and reactor-bed composition on the methanol conversion efficiency of a molybdenum-rich, ironmolybdate ca...
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In this work, a solid phase spectrophotometric method in association with flow injection analysis for formaldehyde determination has been developed with direct measurement of light-absorption in C(18) material. The 3,5-diacetyl-1,4-dihydrolutidine produced from the reaction between formaldehyde and fluoral P was quantitatively retained on C(18) support and the spectrophotometric detection was p...
متن کاملComparison of three colorimetric reagents in the determination of methanol with alcohol oxidase. Application to the assay of pectin methylesterase.
Three colorimetric reagents for the determination of formaldehyde, the Nash reagent (ammonia plus acetylacetone), Purpald (4-amino-3-hydrazino-5-mercapto-1,2,4-triazole), and N-methylbenzothiazolinone-2-hydrazone (MBTH), were compared for the determination of methanol when used in conjunction with alcohol oxidase. The combination of alcohol oxidase plus the commonly used Nash reagent was specif...
متن کاملOxidative Dehydrogenation of Methanol to Formaldehyde’
is not favorable (AH = + 3 1.5 kcal). Our conclusion is that an important catalytic site involves two adjacent surface dioxo units (the dual dioxo site), with each dioxo site extracting one H in a sequence of steps. The required dual dioxo site exists on the (010) surface of MOO, but does not exist on the other low index surfaces. This mechanism is supported by atmospheric pressure experimental...
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Atmospheric methanol measurement using selective catalytic methanol to formaldehyde conversion S. J. Solomon, T. Custer, G. Schade, A. P. Soares Dias, and J. Burrows Institute of Environmental Physics, University of Bremen, Bremen, Germany GRECAT-Grupo de Estudos de Catalise Heterogenea, Universidade Tecnica de Lisboa, Lisbon, Portugal presently with: Department of Atmospheric Sciences, Texas A...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1996
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.45.677