| Title |
Magnetic molecularly imprinted polymer nanoparticles-based solid-phase extraction coupled with gas chromatography–mass spectrometry for selective determination of trace di-(2-ethylhexyl) phthalate in water samples
|
|---|---|
| Published in |
Analytical & Bioanalytical Chemistry, August 2016
|
| DOI | 10.1007/s00216-016-9889-x |
| Pubmed ID | |
| Authors |
Chunying Li, Xiaoguo Ma, Xiaojun Zhang, Rui Wang, Yuan Chen, Zhongyang Li |
| Abstract |
Novel magnetic molecularly imprinted polymer nanoparticles (MMIPs) were synthesized by surface imprinting technology with a sol-gel process, using di(2-ethylhexyl)phthalate (DEHP) as the template. The MMIPs were characterized using Fourier transform-infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM). The MMIPs displayed good adsorption selectivity for DEHP, with selectivity coefficients of 5.2 and 4.8 with respect to di-n-octyl phthalate and dibutyl phthalate, respectively. The reusability of MMIPs was demonstrated for at least eight repeated cycles without significant loss in adsorption capacity. A novel method for selective preconcentration and determination of trace DEHP in aqueous solutions was developed by using the magnetic DEHP-imprinted nanoparticles as adsorbent for solid-phase extraction (SPE) coupled with gas chromatography-mass spectrometry (GC-MS). The optimum SPE conditions were as follows: adsorbent amount, 50 mg; sample volume, 100 mL; adsorption time, 20 min; eluent, chloroform; and desorption time, 5 min. Results showed that the limit of detection (LOD) and limit of quantification (LOQ) for DEHP were 0.02 and 0.075 μg L(-1), respectively. The proposed method was applied to the determination of DEHP in different real water samples, with spiked recovery of 93.3-103.2 % and RSD of 1.2-3.2 %. Therefore, the developed analytical method is rapid, sensitive, and accurate, which provides a new option for the detection of trace DEHP in aqueous samples. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 24 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 24 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Unspecified | 5 | 21% |
| Researcher | 4 | 17% |
| Student > Master | 4 | 17% |
| Professor > Associate Professor | 2 | 8% |
| Lecturer | 1 | 4% |
| Other | 5 | 21% |
| Unknown | 3 | 13% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 6 | 25% |
| Unspecified | 5 | 21% |
| Chemical Engineering | 1 | 4% |
| Biochemistry, Genetics and Molecular Biology | 1 | 4% |
| Environmental Science | 1 | 4% |
| Other | 2 | 8% |
| Unknown | 8 | 33% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 November 2016.
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#20,656,161
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Outputs from Analytical & Bioanalytical Chemistry
#6,601
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#271,890
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Outputs of similar age from Analytical & Bioanalytical Chemistry
#88
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