申请人:Raymo Francisco M.
公开号:US20090258429A1
公开(公告)日:2009-10-15
A chromogenic oxazine compound for the colorimetric detection of cyanide was designed. Indeed, the [1,3]oxazine ring of our compound opens to form a phenolate chromophore in response to cyanide. The heterocyclic com-pound may be comprised of fused benzooxazine and indoline rings:
wherein R
1
is an alkyl (e.g., methyl, ethyl, propyl, isopropyl, butyl, isobutyl), a substituted alkyl, a cycloalkyl (e.g., cyclopentyl, cyclohexyl), a substituted cycloalkyl, an aryl (e.g., phenyl), or a substituted aryl and R
2
is a chromophore (e.g., nitroso, nitro, azo dyes). This quantitative chromogenic transformation permits the detection of micromolar concentrations of cyanide in water. Furthermore, our chromogenic oxazine is insensitive to the presence of large concentrations of fluoride, chloride, bromide or iodide anions, which are generally the principal interferents in the colorimetric detection of cyanide.
设计了一种用于比色检测氰化物的发色氧杂芴化合物。实际上,我们化合物的[1,3]氧杂芴环会在氰化物的作用下打开,形成酚酸色团。这种杂环化合物可能由融合的苯氧杂芴和吲哚环组成:其中R1是烷基(例如,甲基,乙基,丙基,异丙基,丁基,异丁基),取代烷基,环烷基(例如,环戊基,环己基),取代环烷基,芳基(例如,苯基),或取代芳基,而R2是色团(例如,亚硝基,硝基,偶氮染料)。这种定量的发色转化允许在水中检测微摩尔浓度的氰化物。此外,我们的发色氧杂芴对氟化物,氯化物,溴化物或碘化物阴离子的大浓度存在不敏感,这些通常是影响氰化物比色检测的主要干扰物质。