Determination of 4-Methylpropranolol in Cerebrospinal Fluid, Serum, and Urine by Nonprotected Fluid Room-Temperature Phosphorescence Using Simplex Optimization

Pulgarı́n, José A. Murillo; Molina, Aurelia Alañón; Pardo, M.T Alañón

doi:10.1006/abio.2002.5697

Cited by 5 publications

(1 citation statement)

References 23 publications

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“…Unfortunately, most studies in this field are devoted to different naphthalene derivatives (including drugs, pesticides, etc.) (12)(13)(14)(15)(16)(17)(18)(19)(20)(21). Only a few studies have been concerned with tri-ring PAH (22,23) or tetra-ring PAH (24).…”

Section: Introductionmentioning

confidence: 99%

Comparison of properties on non‐protected fluid room temperature phosphorescence of some tetra‐ring aromatic hydrocarbons

Zhang

et al. 2005

Luminescence

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A comparative study of the photoluminescence properties of three kinds of tetra-ring aromatic hydrocarbon (1-sodium pyrenesulphonate, benz[alpha]anthracene and chrysene) solution in the absence of any protecting medium is described. It was found that a room temperature phosphorescence signal with different intensities can be induced for these solutions, using only TlNO3 or KI as a heavy atom perturber (HAP) and Na2SO3 as a deoxygenator. An appropriate amount of organic solvent added to the systems of pyrene, benz[alpha]anthracene and chrysene is necessary for increasing the solubility and phosphorescence intensity, and the preferable solvent is acetonitrile. For the pyrene, pyrenesulphonate and chrysene systems, a delayed excimer fluorescence accompanied with the room temperature phosphorescence (RTP) emission can be observed, but that for benz[alpha]anthracene cannot. The ratio of delayed excimer fluorescence and phosphorescence signals for pyrene, pyrenesulphonate and chrysene systems can be controlled by adjusting the concentration of luminophor, kinds and amount of both organic solvents and HAP. Under the optimal conditions, the RTP signals are proportional to the concentration of the four aromatic hydrocarbons, which means that the RTP properties of the four tetra-ring aromatic hydrocarbons can be used for quantitative analysis.

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