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Evaluation of metal‐organic framework 5 as a new SPE material for the determination of polycyclic aromatic hydrocarbons in environmental waters
Author(s) -
Yang Shaolei,
Chen Chunyan,
Yan Zhihong,
Cai Qingyun,
Yao Shouzhuo
Publication year - 2013
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201200983
Subject(s) - sorbent , sorption , solid phase extraction , chemistry , environmental chemistry , extraction (chemistry) , aqueous solution , metal organic framework , metal , chromatography , adsorption , organic chemistry
Metal‐organic frameworks, a new class of materials with high surface area and great porosity, have been widely applied in gas sorption. It is generally known that metal‐organic framework 5 cannot be applied in aqueous phase since it is water sensitive. However, this work reveals that the derived material of metal‐organic framework 5 is a good SPE sorbent that can be applied to aqueous phases. Metal‐organic framework 5 was prepared and used as a SPE sorbent for the determination of polycyclic aromatic hydrocarbons in environmental matrices coupling with HPLC . The water treatment induced changes in the properties were investigated in detail. Even though metal‐organic framework 5 is conversed to a second phase after water treatment, it still shows high extraction ability. Under the optimized experimental conditions, good sensitivity levels were achieved with low LOD s ranging from 0.4 to 4.0 ng L −1 and a linearity of 0.004–20 μg L −1 ( R 2 > 0.996) for the investigated polycyclic aromatic hydrocarbons. The method has been validated in the analysis of real water samples with recoveries in the range of 80.2–120.2% and RSD s in the range of 0.5–11.7%.