orabase and acridine-yellow

orabase has been researched along with acridine-yellow* in 1 studies

Other Studies

1 other study(ies) available for orabase and acridine-yellow

ArticleYear
Fluorescence quenching method for the determination of sodium carboxymethyl cellulose with acridine yellow or acridine orange.
    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2006, Volume: 64, Issue:4

    In near neutral to weak basic media, sodium carboxymethyl cellulose (NaCMC) will dissociate to become a macro polymeric anion, which can react with acridine yellow (AY) or acridine orange (AO) to form an ion-association complex resulting in fluorescence quenching of the acridine dyes. The maximum fluorescence quenching wavelength is 505 nm (lambda(ex)=440 nm) for AY system and 530 nm (lambda(ex)=493 nm) for AO system, respectively. The fluorescence quenching values (DeltaF) are directly proportional to the concentrations of NaCMC and the linear ranges are 20.0-4000 microg/L for AY system and 20.0-7000 microg/L for AO system, separately. This method has high sensitivity and the detection limits for NaCMC are 58.0 microg/L (AY system) and 157.2 microg/L (AO system). The effects of coexistent substance have been investigated, and the results show that this method has a relatively good selectivity. A fluorescence quenching method for the determination of NaCMC based on the ion-association reactions of CMC polymeric anion with a basic acridine dye was developed. The method is sensitive, simple and fast.

    Topics: Acridine Orange; Aminoacridines; Carboxymethylcellulose Sodium; Fluorescent Dyes; Models, Chemical; Sensitivity and Specificity; Spectrometry, Fluorescence; Time Factors

2006