title: Sensitive fluorimetric determination of formaldehyde by the co-quenching effect of formaldehyde and sulfite on the fluorescence of tetra-substituted amino aluminium phthalocyanine.
abstract: A novel and sensitive fluorimetric method was developed for the determination of formaldehyde based on the co-quenching effect of formaldehyde and sulfite on the fluorescence of tetra-substituted amino aluminium phthalocyanine. Formaldehyde in the concentration range 0.040-1.19 micrograms ml-1 can be determined with a limit of detection of 7.5 ng ml-1. The relative standard deviation for nine replicate measurements of 80.0 ng ml-1 formaldehyde is 1.8%. The method was applied to the analysis of real samples with satisfactory results.
authors.affiliation: Department of Chemistry, Zhangzhou Teachers' College, Zhangzhou 363000, China.
authors.forename: X Q
authors.initials: XQ
authors.lastname: Zhan
authors.forename: D H
authors.initials: DH
authors.lastname: Li
authors.forename: Q Z
authors.initials: QZ
authors.lastname: Zhu
authors.forename: H
authors.initials: H
authors.lastname: Zheng
authors.forename: J G
authors.initials: JG
authors.lastname: Xu