scholarly journals Composite MOFs as adsorbents for solid phase extraction combined with high performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons in water

2019 ◽  
Vol 136 ◽  
pp. 06011
Author(s):  
Yu Li ◽  
Xiaojing Yang ◽  
Baohui Li
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Solid Phase Extraction ◽  
Water Sample ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Solid Phase ◽  
Phase Extraction ◽  
High Porosity ◽  
Excellent Thermal Stability ◽  
Polycyclic Aromatic

Metal-organic frameworks (MOFs) are a kind of porous materials, which has large specific surface area, high porosity, diverse structure, excellent thermal stability and solvent stability etc. So, it has attracted extensive attention as an adsorbent for solid phase extraction (SPE). Polycyclic aromatic hydrocarbons (PAHs) are a kind of persistent organic pollutants that can lead serious hurts to the ecological environment and human health. The purpose of this paper is to optimize the types and proportion of mixed lanthanum based MOFs, and to improve the enrichment efficiency of SPE. Then a method to analysis PAHs by SPE-HPLC was established. Several main factors that could effected the pre-treatment efficient, such as the amount of adsorbent, the amount and pH of PAHs water sample, and the volume of eluent, were investigated. After optimized, the extraction of seven PAHs in water sample was achieved and the recovery rates were 80.67%, 80.06%, 54.69%, 82.62%, 118.87%, 70.30% and 95.57% respectively.

Natural cotton fibers as adsorbent for solid-phase extraction of polycyclic aromatic hydrocarbons in water samples

The Analyst ◽  
2014 ◽  
Vol 139 (14) ◽  
pp. 3593-3599 ◽  
Author(s):  
Jianping Wang ◽  
Shengquan Liu ◽  
Chunyan Chen ◽  
Ying Zou ◽  
Huiping Hu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Solid Phase Extraction ◽  
Aromatic Hydrocarbons ◽  
Water Samples ◽  
High Performance ◽  
Solid Phase ◽  
Cotton Fibers ◽  
Natural Material ◽  
Phase Extraction ◽  
Polycyclic Aromatic

A natural material, cotton fiber, has been applied as a solid-phase extraction (SPE) adsorbent for sample preparation for the analysis of polycyclic aromatic hydrocarbons (PAH) in water samples using high-performance liquid chromatography.

scholarly journals Determination of Urinary Hydroxyl PAHs Using Graphene Oxide@Diatomite Based Solid-Phase Extraction and High-Performance Liquid Chromatography

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4186 ◽  
Author(s):  
Yuanman Liu ◽  
Ziling Li ◽  
Ziyang Zhang ◽  
Tengwen Zhao ◽  
Manman Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Solid Phase Extraction ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Solid Phase ◽  
Urine Samples ◽  
Phase Extraction ◽  
Polycyclic Aromatic

A diatomite supported graphene oxide composite (GO@Dt–NH2) was fabricated and explored as a solid-phase extraction adsorbent coupled with high performance liquid chromatography to determine the trace hydroxyl polycyclic aromatic hydrocarbons (2-hydroxy-naphthalene, 2-hydroxy-fluorene, 1-hydroxy-phenanthrene, and 1-hydroxy-pyrene) in urine samples. The fabricated composites were characterized by X-ray powder diffractometry and scanning electron microscopy. GO@Dt–NH2 offered enhanced adsorption affinity towards the analytes compared with the bare diatomite. The amount of graphene oxide and the factors affecting solid-phase extraction were investigated in detail. Under the optimized conditions, the method gave good linearity (0.30–200 ng/mL) and a low detection limit (0.10–0.15 ng/mL) for the hydroxyl polycyclic aromatic hydrocarbons. The average recovery for spiked urine samples with three levels ranged from 90.6% to 100%. The intra-day and inter-day relative standard deviations were in the range of 1.8–6.4% and 2.7–11.8%, respectively. Besides, the GO@Dt–NH2 provided enrichment factors of 18–20 and superior purification ability. The developed method was successfully applied to the determination of hydroxyl polycyclic aromatic hydrocarbons in urine samples from smoking volunteers.

Multiresidue Determination of Carcinogenic Polycyclic Aromatic Hydrocarbons in Honey by Solid-Phase Extraction and High-Performance Liquid Chromatography

2011 ◽  
Vol 74 (10) ◽  
pp. 1692-1699 ◽  
Author(s):  
LOURDES CORREDERA ◽  
SUSANA BAYARRI ◽  
CONSUELO PÉREZ-ARQUILLUÉ ◽  
REGINA LÁZARO ◽  
FRANCISCO MOLINO ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Liquid Chromatography ◽  
Solid Phase Extraction ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Solid Phase ◽  
Phase Extraction ◽  
The European Union ◽  
Polycyclic Aromatic

An analytical procedure based on solid-phase extraction, using ethyl acetate as the elution solvent, and high-performance liquid chromatography with fluorescence and diode array detection was developed for the identification and quantification of polycyclic aromatic hydrocarbons (PAHs) in honey. The method has been optimized and validated in accordance with Commission Regulation 333/2007 and Commission Decision 2002/657/EC. This method allows the identification of the 15 PAHs that should be monitored in food matrices, as proposed in 2002 by the Scientific Committee on Food and later by the European Union in the Commission Recommendation 2005/108/EC, because of their genotoxic and carcinogenic properties. The results of the validation study were in agreement with quality criteria described in European legislation in terms of sensitivity, accuracy, and ruggedness, and the method was applied to the analysis of 42 honey samples (21 from Spain and 21 from other regions). The honey samples were not contaminated by PAHs at detectable levels and thus could be marketed without health risk.

A Correlation Study between Polycyclic Aromatic Hydrocarbons in Urumqi Snow and the Surrounding Environment

2013 ◽  
Vol 864-867 ◽  
pp. 1364-1368
Author(s):  
Yakup Parida ◽  
Eslamjan Diwani
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Solid Phase Extraction ◽  
Aromatic Hydrocarbons ◽  
Solid Phase ◽  
Total Concentration ◽  
Correlation Study ◽  
Phase Extraction ◽  
Purification Method ◽  
Surrounding Environment ◽  
Polycyclic Aromatic

Based on the principle of solid phase extraction and the purification method using Florida silica, sixteen various kinds of polycyclic aromatic hydrocarbons such as naphthalene, acenaphthene and fluorene were measured in Urumqi snow by means of HPLC. The results showed that the concentration of PAHs was different in different sampling sites in Urumqi. The total concentration of PAHs was in the range of 0.2883 ~ 8.814 µg/mL and the content of PAHs snow was higher than that in water, which indicated that the snow was polluted by organic matters to a certain degree and the pollution was not so serious compared with the groundwater. So the snow has a certain application value for life.

scholarly journals Magnetic hybrid support for ultrasound-assisted magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from produced water

2019 ◽  
Vol 146 ◽  
pp. 1195-1203 ◽  
Author(s):  
Vinícius Crispim Lima de Barros Caetano ◽  
Graziele da Costa Cunha ◽  
Rhayza Victoria Matos Oliveira ◽  
Marcelo da Rosa Alexandre ◽  
Luciane Pimenta Cruz Romão
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Solid Phase Extraction ◽  
Aromatic Hydrocarbons ◽  
Produced Water ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Polycyclic Aromatic ◽  
Magnetic Solid ◽  
Ultrasound Assisted
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