Applicability of low temperature high-resolution fluorescence spectroscopy to the analysis of nitro and amino polycyclic aromatic hydrocarbons

Matsuzawa, Sadao; Garrigues, Philippe; Budzinski, Hélène; Bellocq, J.; Shimizu, Yukio

doi:10.1016/0003-2670(95)00218-o

Cited by 12 publications

(5 citation statements)

References 41 publications

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“…Despite the synthesis and acquisition of electronic spectra of nitro-PAHs, − only a few studies have focused on quantitative assignments . It has been observed that the substitution of a nitro group on the parent PAH causes red shifts in the absorption wavelengths. , The fluorescence spectra of NPAHs has been acquired at low temperatures or via reduction of the nitro group to the correspondingly more fluorescent amino-PAH. ,− Low quantum yields of emission arise because of the quenching ability of the nitro group.…”

Section: Introductionmentioning

confidence: 99%

Optical Spectroscopic Studies of Mononitrated Benzo[a]pyrenes

et al. 2009

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Spectroscopic properties, including absorption, emission spectra, and excited-state lifetimes of the mononitrated benzo[a]pyrenes (NBaPs), specifically 1-, 3-, and 6-nitrobenzo[a]pyrenes (1-, 3-, and 6-NBaP), are reported, and correlations with structure are developed. With 1- and 3-NBaP, bathochromic shifts are observed in the absorption spectra. The quantum yields of emission display the following trend: BaP >> 6-NBaP > 1-NBaP approximately 3-NBaP. Fluorescence lifetimes for nitrated BaPs were approximately 6 to 7 times shorter than that of BaP. With the help of time-dependent density functional theory (TD-DFT), assignments of the electronic transitions are proposed and are in good agreement with the electronic spectra for the NBaPs in methanol. On the basis of optimization of the triplet states, different photochemical consequences are discussed, and the observed fluorescence quenching is explained. Changes in the electron density distributions in the ground and excited states calculated at the second-order coupled-cluster level using the resolution-of-the-identity approximation (RI-CC2) provide information about the possible mechanism of photochemical reactions of NBaPs. Correlations between the orientation of the nitro group relative to the aromatic plane and the observed properties of the NBaP are discussed.

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Section: Introductionmentioning

confidence: 99%

Optical Spectroscopic Studies of Mononitrated Benzo[a]pyrenes

et al. 2009

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“…Only one study has been reported concerning the analysis of NPAHs. By reducing NPAHs with potassium borohydride (KBH 4 ), high-resolution fluorescence spectra of the resulting APAHs could be obtained (Matsuzawa et al, 1995).…”

Section: Low-temperature Shpol'skii¯uorimetric Detectionmentioning

confidence: 99%

Chromatographic methods for carcinogenic/mutagenic nitropolycyclic aromatic hydrocarbons

Hayakawa

2000

Biomed. Chromatogr.

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Nitropolycyclic aromatic hydrocarbons (NPAHs), which are known to be carcinogenic and/or mutagenic, are considered to be one of the air pollutants that cause lung cancer. In the last two decades, a number of sensitive and selective methods have been developed for the determination of NPAHs and related compounds in environmental and biological samples. This paper describes the state of the art of the methods and applications.

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“…Amino derivatives of PAH are metabolic products of nitrated PAH [12] and are frequently analyzed as the markers of the exposure to the parent nitro derivatives. Naphthalene amino derivatives are determined by spectrophotometric methods [13], electrochemical methods [14], gas chromatography [7], HPLC on reverse or normal phases being the most frequently used methods [15 -20]. The most widely used detector for HPLC analysis of APAH is a universal UV detector [17 -19] or a sensitive fluorescence detector [17,18].…”

Section: Introductionmentioning

confidence: 99%

HPLC Determination of Naphthalene Amino Derivatives Using Electrochemical Detection at Carbon Paste Electrodes

2007

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HPLC with electrochemical detection using a carbon paste electrode based on glassy carbon spherical microparticles with an organic pasting liquid has been used for the determination of trace amounts of carcinogenic 1-naphthylamine, 2-naphthylamine, 1,5-diaminonaphthalene and 1,8-diaminonaphthalene. The lowest limit of detection found was 5.4 Â 10 À9 mol L À1 for 1,5-diaminonaphthalene. The limits of detection for the above analytes using the electrochemical detection with a carbon paste electrode were in all cases lower than the corresponding limits of detection for the spectrophotometric detection. The newly developed method of determination was verified on model samples of drinking and river water.

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Applicability of low temperature high-resolution fluorescence spectroscopy to the analysis of nitro and amino polycyclic aromatic hydrocarbons

Cited by 12 publications

References 41 publications

Optical Spectroscopic Studies of Mononitrated Benzo[a]pyrenes

Optical Spectroscopic Studies of Mononitrated Benzo[a]pyrenes

Chromatographic methods for carcinogenic/mutagenic nitropolycyclic aromatic hydrocarbons

HPLC Determination of Naphthalene Amino Derivatives Using Electrochemical Detection at Carbon Paste Electrodes

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