Development of micro-solid phase extraction with titanate nanotube array modified by cetyltrimethylammonium bromide for sensitive determination of polycyclic aromatic hydrocarbons from environmental water samples

• Published in: Journal of hazardous materials Vol. 193; pp. 82 - 89
• Main Authors: Huang, Yunrui, Zhou, Qingxiang, Xie, Guohong
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.10.2011; Elsevier
• Subjects: Applied sciences; Arrays; Catalysis; Catalytic reactions; Cetrimonium Compounds - chemistry; Cetyltrimethylammonium bromide; Chemical engineering; Chemistry; Chromatography, High Pressure Liquid; Exact sciences and technology; Extraction; General and physical chemistry; High performance liquid chromatography; Hydrogen-Ion Concentration; Limit of Detection; Micro-solid phase extraction; Microscopy, Electron, Scanning; Nanocomposites; Nanomaterials; Nanostructure; Nanotubes; Ordered TiO 2 nanotube array; Pollution; Polyallylamine hydrochloride; Polycyclic aromatic hydrocarbon; Polycyclic Compounds - analysis; Reactors; Solid Phase Microextraction; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Titanium - chemistry; Titanium dioxide; Water Pollutants, Chemical - analysis; Ordered TiO 2 nanotube array; Micro-solid phase extraction; Polycyclic aromatic hydrocarbon; High performance liquid chromatography; Solid phase extraction; Ordered Ti0; Hydrocarbon; HPLC chromatography; Polycyclic aromatic compound; Persistent organic pollutant; Detection limit; Preconcentration; Titanium oxide; Catalyst; Organic compounds; nanotube array
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2011.07.025

This paper described a simple and novel measurement technique for the determination of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples. A micro-solid phase extraction (μ-SPE) demonstrated good enrichment performance for PAHs with cetyltrimethylammonium bromide modified ordered TiO 2 nanotube array. [Display omitted] ► Develop a new micro-solid phase equilibrium extraction (μ-SPE) method with TiO 2 nanotube arrays modified with CTAB. ► Provide a new monitoring technique for PAHs with a small amount of effectiveTiO 2 nanotubes arrays. ► Demonstrate good adsorption and the applicability of TiO 2 nanotube arrays modified with CTAB. This paper described a simple and novel analytical technique for the determination of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples. A micro-solid phase extraction (μ-SPE) was developed utilizing cetyltrimethylammonium bromide modified ordered TiO 2 nanotube array. The experimental results indicated that modified TiO 2 nanotube arrays demonstrated an excellent merit on the preconcentration of PAHs, and there were excellent linear relationships between peak area and the concentration of PAHs in the range of 0.2–100 μg L −1 and 1.0–100 μg L −1, respectively. The detection limits of proposed method for the targeted PAHs were in the range of 0.026–0.82 μg L −1 (S/N = 3). The real-world environmental water samples were used to validate the applicability of the proposed method and good spiked recoveries were in the range of 75.0–114%. All these results demonstrated that this new μ-SPE technique was a viable alternative to conventional enrichment techniques for the extraction and analysis of PAHs in complex samples.