M. Shehata, S. Tawakkol and L. A. Fattah, “Colorimetric and Fluorimetric Methods for Determination of Panthenol in Cosmetic and Pharmaceutical Preparations,” Journal of the Pharmaceutical Biomedical Analysis, Vol. 27, No. 5, 2002, pp. 729-735. doi:10.1016/S0731-7085(01)00510-6

has been cited by the following article:

• TITLE: Analytical and Stability Studies on Medical Cosmetics

  AUTHORS: Manal I. Eid, Mary E. K. Wahba

  KEYWORDS: Panthenol; Spectrophotometry; Spectrofluorimetry; Stability Studies

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.3 No.3, March 29, 2012

  ABSTRACT: Two simple and sensitive spectrofluorimetric (method Ι) and spectrophotometric (method ΙΙ) methods have been developed for the determination of some chloride containing toothpastes and panthenol-containing cosmetic preparations respectively. Method Ι is based on quantitative fluorescence quenching of (terbium-salicylate-hexamine ternary complex) by fluoride which could be measured at λem/λex of 547 nm/322 nm. The ΔF-concentration plot was rectilinear over the concentration range of 0.5 - 20 μg/ml. Method ΙΙ depends reaction of panthenol with nitrobenzoxadiazole chloride (NBD-Cl) and measuring the absorbance of the resultant product at 480 nm. The absorbance-concentration plot was rectilinear over the concentration range of 2 - 20 μg/ml.