نتایج جستجو برای: 24 dinitrophenylhydrazone
تعداد نتایج: 348201 فیلتر نتایج به سال:
Two-component systems (TCSs) have the potential to be an effective target of the antimicrobials, and thus received much attention in recent years. VicK/VicR is one of TCSs in Streptococcus pneumoniae (S. pneumoniae), which is essential for pneumococcal survival. We have previously obtained several Traditional Chinese Medicine monomers using a computer-based screening. In this study, either alon...
THE previous observation [Barton-Wright & Boswell, 1929, 1931] that the dry-rot fungus Merulius lachrymans can be classified as of the "brown rot" type is confirmed. The present communication deals with the detailed constitution of the cellulose-containing, water-soluble and dilute alkali-soluble fractions which were only superficially studied in the earlier work. From the alcohol-soluble fract...
Recently, Griffith et al. reported that acetoin is a major product of the photolysis of aqueous pyruvic acid (PA), and proposed that its mechanism of formation involves the thermal decarboxylation of α-acetolactic acid (AL) intermediate (1). This finding is in contrast with a previous study by Guzman et al., based on experiments performed under similar conditions, which reported the formation o...
Using high-performance liquid chromatography (HPLC) and 2,4-dinitrophenylhydrazine (2,4-DNPH) as a derivatizing reagent, an analytical method was developed for the quantitative determination of acetone in human blood. The determination was carried out at 365 nm using an ultraviolet-visible (UV-Vis) diode array detector (DAD). For acetone as its 2,4-dinitrophenylhydrazone derivative, a good sepa...
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