Graphene Reinforced Hollow Fiber Liquid Phase Microextraction for the Enrichment of some Phenylurea Residues in Milk Sample

Sun, Meng; Tang, Ranxiao; Wu, Qiuhua; Wang, Chun

doi:10.1007/s12161-013-9719-0

Cited by 22 publications

(13 citation statements)

References 32 publications

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“…A comparison of the results obtained by present method with other methods is clearly shown in Table 2. The detection limit was lower than those by HPLC-MS-MS [5], GC-MS [7], immunoassay [12], PIF [13] and G-HF-LPME [14], and the linear range was wider than these methods, too. The results shown the linearity and sensitive of the present method was good in detection.…”

Section: Analytementioning

confidence: 78%

“…Analytical methods for the quantification of phenylurea herbicide residues are mainly based on the chromatographic analysis, such as high performance liquid chromatography (HPLC) [3,4], high performance liquid chromatography mass spectrometry-mass spectrometry (HPLC-MS/MS) [5], liquid chromatography time-offlight mass spectrometry (LC/TOF-MS) [6], gas chromatography mass spectrometry (GC-MS) [7], thin layer chromatography (TLC) [8][9][10], immunoassay technique [11,12], photo-induced fluorescence (PIF) [13], graphene reinforced hollow fiber liquid phase microextraction (G-HF-LPME) [14], etc. However, these regular methods generally are high operation cost and long analytical time.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous determination of phenylurea herbicides in yam by capillary electrophoresis with electrochemiluminescence detection

2015

Journal of Chromatography B

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Section: Analytementioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of phenylurea herbicides in yam by capillary electrophoresis with electrochemiluminescence detection

2015

Journal of Chromatography B

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“…So far, based on the unique adsorption performance, Sun et al. have applied graphene reinforced hollow fiber liquid phase microextraction for the enrichment of some phenylurea residues in milk sample . Ma et al.…”

Section: Introductionmentioning

confidence: 99%

“…Owing to one-atom-thick two-dimensional layer of sp 2 carbon [22] delocalized π-electron system, graphene can form a strong π-stacking interaction with the benzene ring [23], and it has been demonstrated to be an effective and applicable adsorbent for SPME [24][25][26]. So far, based on the unique adsorption performance, Sun et al have applied graphene reinforced hollow fiber liquid phase microextraction for the enrichment of some phenylurea residues in milk sample [27]. Ma et al proposed hollow fiber/graphene oxide/solvent bar microextraction [28], and Xing et al developed graphene-sensitized microporous membrane/solvent microextraction [29], which all showed the satisfactory extraction efficiencies for the target analytes.…”

Section: Introductionmentioning

confidence: 99%

Graphene/dodecanol floating solidification microextraction for the preconcentration of trace levels of cinnamic acid derivatives in traditional Chinese medicines

Xue

Chen

et al. 2017

J. Sep. Sci.

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A novel graphene/dodecanol floating solidification microextraction followed by HPLC with diode-array detection has been developed to extract trace levels of four cinnamic acid derivatives in traditional Chinese medicines. Several parameters affecting the performance were investigated and optimized. Also, possible microextraction mechanism was analyzed and discussed. Under the optimum conditions (amount of graphene in dodecanol: 0.25 mg/mL; volume of extraction phase: 70 μL; pH of sample phase: 3; extraction time: 30 min; stirring rate: 1000 rpm; salt amount: 26.5% NaCl; volume of sample phase: 10 mL, and without dispersant addition), the enrichment factors of four cinnamic acid derivatives ranged from 26 to 112, the linear ranges were 1.0 × 10 -10.0 μg/mL for caffeic acid, 1.3 × 10 -1.9 μg/mL for p-hydroxycinnamic acid, 2.8 × 10 -4.1 μg/mL for ferulic acid, and 2.7 × 10 -4.1 μg/mL for cinnamic acid, with r ≥ 0.9993. The detection limits were found to be in the range of 0.1-1.0 ng/mL, and satisfactory recoveries (92.5-111.2%) and precisions (RSDs 1.1-9.5%) were also achieved. The results showed that the approach is simple, effective and sensitive for the preconcentration and determination of trace levels of cinnamic acid derivatives in Chinese medicines. The proposed method was compared with conventional dodecanol floating solidification microextraction and other extraction methods.

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“…It can provide a high analyte preconcentration factor for some analytes and has excellent clean-up efficiency as the hollow ber can play a role as a lter. 17 In these works, the CNTs or graphene were incorporated in a hollow ber system and acted as a nanoscale solid-phase extractant with high surface area, which provide sites at which the analyte molecules can transfer from the donor to the acceptor phase and result in a higher selectivity and enrichment for the analytes. Moreover, the hollow ber is disposable aer each use due to its cheapness, which can overcome the carry-over problems and enhance the reproducibility.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous carbon reinforced hollow fiber liquid-phase microextraction for the enrichment of phenylurea herbicides followed by their determination with high performance liquid chromatography

Zhao

Wang

et al. 2015

Anal. Methods

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In this paper, a new sample preparation method based on mesoporous carbon reinforced hollow fiber liquid phase microextraction (MC-HF-LPME) was developed for the extraction of some phenylurea herbicides (chlortoluron, isoproturon, monolinuron and buturon) in river water and soil samples prior to high performance liquid chromatography-diode array detection. Mesoporous carbon was synthesized using MCM-41 as a template and sucrose as a carbon precursor. The as-prepared mesoporous carbon was characterized by SEM, TEM and nitrogen adsorption. Several important parameters that affect the extraction efficiencies, such as concentration of ordered porous carbon, fiber length, extraction time, sample solution pH, salt addition and stirring rate, were investigated and optimized. Under the optimum conditions, the linearity for buturon was in the range of 0.3-100.0 ng mL À1 and 5.0-300.0 ng g À1 for river water and soil samples, respectively. The linearity for the other three analytes was in the range of 0.2-100.0 ng mL À1 for the river water sample and 2.0-300.0 ng g À1 for the soil sample. The limits of detection (S/N ¼ 3) of the method ranged from 0.05 to 0.1 ng mL À1 for the river water sample and 0.5 to 1.0 ng g À1 for the soil sample. The results indicated that the developed method is a simple, efficient and environmentally friendly method for the extraction and determination of phenylurea herbicides in river water and soil samples.

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Graphene Reinforced Hollow Fiber Liquid Phase Microextraction for the Enrichment of some Phenylurea Residues in Milk Sample

Cited by 22 publications

References 32 publications

Simultaneous determination of phenylurea herbicides in yam by capillary electrophoresis with electrochemiluminescence detection

Simultaneous determination of phenylurea herbicides in yam by capillary electrophoresis with electrochemiluminescence detection

Graphene/dodecanol floating solidification microextraction for the preconcentration of trace levels of cinnamic acid derivatives in traditional Chinese medicines

Mesoporous carbon reinforced hollow fiber liquid-phase microextraction for the enrichment of phenylurea herbicides followed by their determination with high performance liquid chromatography

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