In an article, published in an article, once mentioned the application of 14187-32-7, Name is Dibenzo-18-crown-6,molecular formula is C20H24O6, is a conventional compound. this article was the specific content is as follows.HPLC of Formula: C20H24O6
A multifunctional dye, 4,4?-bis-(carboxyl phenylazo)-dibenzo-18- crown-6 dye (BCADC) was designed and prepared via diazotization and coupling reaction of dibenzo-18-crown-6 with p-amino benzoic acid. The dye, combining crown ether ring, azo and carboxyl group, exhibits well-defined Hg 2+-selective ratiometric colorimetric behavior, with the maximum absorbance peak changing from 354 nm to 408 nm exclusively. Under the optimum conditions, the recognition to Hg2+ has a linear range of 2.5-58 × 10-7 mol L-1 with a 0.9978 correlation coefficient. The method was applied to analyse 3 environmental water samples with a detection limit of 2.9 × 10-8 mol L-1 and a relative standard deviation (R.S.D.) lower than 3.7% (n = 5). The action mechanism between BCADC and metal ions was discussed by means of Job’s plots and theoretical calculations.
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