DETERMINATION OF PYRENE AND BENZO(A)PYRENE RESIDUES IN WATER BY DERIVATIVE SYNCHRONOUS SOLID-PHASE SPECTROFLUOROMETRY

被引：7

作者：

CAPITANVALLVEY, LF ^{[1
]}

CASTANEDA, RA ^{[1
]}

IRUELA, MD ^{[1
]}

QUERO, JLV ^{[1
]}

机构：

[1] UNIV GRANADA,FAC SCI,DEPT ANALYT CHEM,E-18071 GRANADA,SPAIN

来源：

MIKROCHIMICA ACTA | 1993年 / 112卷 / 1-4期

关键词：

BENZO(A)PYRENE; PYRENE; SOLID-PHASE SPECTROFLUOROMETRY; WATER ANALYSIS;

D O I：

10.1007/BF01243321

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Benzo(a)pyrene (BaP) and pyrene (Pyr) are two polycyclic aromatic hydrocarbons (PAHs) showing native fluorescence in solution. Both compounds have been determined in water at trace levels by solid-phase spectrofluorimetry, in which BaP and Pyr are fixed on Sephadex G-25 gel and the relative fluorescence intensity is measured after the system is packed in a 1-mm silica cell. First-derivative synchronous spectra obtained at DELTAlambda = 38 nm were used to determine BaP and Pyr in the presence of other potentially interferent PAHs. The spectral characteristics of the PAHs-gel system are described, the applicable concentration ranges being 0.4 2.5 ng/ml for BaP and 0.7-4.5 ng/ml for Pyr. The relative standard deviations were 1.1% and 1.4% for BaP and Pyr respectively. The detection limits were 0.04 ng/ml for BaP and 0.1 ng/ml for Pyr. The method was applied to the analysis of both compounds in water at trace levels and a recovery study on tap, natural and sea waters was carried out.

引用

页码：55 / 62

页数：8