Exploration of coordination polymer as sorbent for flow injection solid-phase extraction on-line coupled with high-performance liquid chromatography for determination of polycyclic aromatic hydrocarbons in environmental materials

Zhou, Youya; Yan, Xiu‐Ping; Kim, Kinam; Wang, Shan‐Wei; Liu, Ming-Guang

doi:10.1016/j.chroma.2006.03.061

Cited by 132 publications

(49 citation statements)

References 24 publications

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“…Most of the reports concerning applications of MOFs have focused on catalysis [5,6] or gas adsorption [7], while the exploration of these materials as pre-concentrators for SPE has been sparsely reported [8]. The scope of this work is to use MOFs as stationary phases, since they can be tailored to provide selective sorption profiles based on control of structural aspects, such as shape and pore size, as well as hydrophobic and hydrophilic properties.…”

Section: Introductionmentioning

confidence: 98%

Potential of a metal–organic framework as a new material for solid‐phase extraction of pesticides from lettuce (Lactuca sativa), with analysis by gas chromatography‐mass spectrometry

Barreto

Silva

et al. 2010

J of Separation Science

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The metal-organic framework (∞)[(La(0.9)Eu(0.1))(2)(DPA)(3)(H(2)O)(3)] was tested for extraction of pyrimicarb, procymidone, malathion, methyl parathion and α- and β-endosulfan from lettuce, with analysis using GC/MS in SIM mode. Experiments were carried out in triplicate at two fortification levels (0.1 and 0.5 mg/kg), and resulted in recoveries in the range of 78-107%, with RSD values between 1.6 and 8.0% for (∞)[(La(0.9)Eu(0.1))(2)(DPA)(3)(H(2)O)(3)] sorbent. Detection and quantification limits ranged from 0.02 to 0.05 mg/kg and from 0.05 to 0.10 mg/kg, respectively, for the different pesticides studied. The method developed was linear over the range tested (0.05-10.0 μg/mL), with correlation coefficients ranging from 0.9990 to 0.9997. Comparison between (∞)[(La(0.9)Eu(0.1))(2)(DPA)(3)(H(2)O)(3)] and conventional sorbent (silica gel) showed better performance of the (∞)[(La(0.9)Eu(0.1))(2)(DPA)(3)(H(2)O)(3)] polymeric sorbent for all pesticides tested.

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Section: Introductionmentioning

confidence: 98%

Potential of a metal–organic framework as a new material for solid‐phase extraction of pesticides from lettuce (Lactuca sativa), with analysis by gas chromatography‐mass spectrometry

Barreto

Silva

et al. 2010

J of Separation Science

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“…The necessity of measuring these pollutants in the environment and drinking water is urgent. Many analytical methods for PAHs based on high performance liquid chromatography coupled with fluorescence detection (HPLC-FLD) have been reported [17,18]. Because of the high boiling point of Nap, Ace and Flu, it is difficult to monitor them using traditional HS-LPME.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-assisted headspace ionic-liquid microextraction of polycyclic aromatic hydrocarbons at elevated temperatures

et al. 2012

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We have developed a method for ultrasoundassisted ionic-liquid (IL) microextraction at elevated temperatures. A sealed pipette tip was used to hold the IL. The polycyclic aromatic hydrocarbons naphthalene, acenaphthene and fluorene were headspace-extracted into a 30-μL volume of the IL at 60°C. Cooling is not needed to control the temperature of the extraction solvent because it has almost zero vapor pressure. Following extraction, the analyte-loaded IL was submitted to HPLC with fluorescence detection. Under the optimal conditions, the limits of detection (at S/N03) are 30, 30 and 10 ng L −1 for naphthalene, acenaphthene and fluorene, respectively. Recoveries range from 86 to 110 %, and the extraction efficiency is better than previous methods by a factor of~40. The technique was applied to the analysis of semivolatile pollutants (PAHs) in real aqueous samples.

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“…Common sorbent-based extraction methods for extracting PAHs from water samples involve solidphase extraction [14], SPME [15,16], stir bar sorptive extraction [17], and microextraction in packed syringe [18]. Among these sorbents, silica nanoporous materials have been widely used due to their unique properties such as high surface area.…”

Section: Introductionmentioning

confidence: 99%

New Grafted Nanosilica-Based Sorbent for Needle Trap Extraction of Polycyclic Aromatic Hydrocarbons from Water Samples Followed by GC/MS

2011

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In this work, the preparation of a new grafted nanosilica-based sorbent was extensively investigated. An inexpensive modifier, cis-9-octadecenoic acid (oleic acid) was selected to be grafted on the surface of the nanosilica particles as the support. The grafting process was accurately confirmed by Fourier transform infra-red spectrometry (FT-IR). Applicability of the prepared sorbent was thoroughly examined by needle trap extraction (NTE) method. The grafted sorbent was dispersed in the appropriate solvent and carefully packed inside a steel needle. Feasibility of the method was completely examined using polycyclic aromatic hydrocarbons (PAHs), as model compounds. For extraction of analytes from aqueous samples, the prepared needle trap device (NTD) was placed in the headspace of the sample and another needle was also inserted into the sample solution to purge the circulating headspace into the sample. For increasing the extraction efficiency, influencing parameters including extraction time and temperature, flow rate of analyte through the needle trap, the ionic strength, desorption temperature, and time were optimized. The limit of detection (LOD) and relative standard deviation (RSD) values of the method under optimized conditions were 2-5 ng L -1 and 1.1-4.8%, respectively. The RSD% for fluorene was somewhat higher and a value of 16.8% at 40 ng L -1 was achieved. Finally the developed method was applied to the analysis of tap water and Zayandeh-roud river samples and the relative recovery (RR %) values were found to be in the range of 77-109%, under the optimized conditions.

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Exploration of coordination polymer as sorbent for flow injection solid-phase extraction on-line coupled with high-performance liquid chromatography for determination of polycyclic aromatic hydrocarbons in environmental materials

Cited by 132 publications

References 24 publications

Potential of a metal–organic framework as a new material for solid‐phase extraction of pesticides from lettuce (Lactuca sativa), with analysis by gas chromatography‐mass spectrometry

Potential of a metal–organic framework as a new material for solid‐phase extraction of pesticides from lettuce (Lactuca sativa), with analysis by gas chromatography‐mass spectrometry

Ultrasound-assisted headspace ionic-liquid microextraction of polycyclic aromatic hydrocarbons at elevated temperatures

New Grafted Nanosilica-Based Sorbent for Needle Trap Extraction of Polycyclic Aromatic Hydrocarbons from Water Samples Followed by GC/MS

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