51
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Ding J, Luo XT, Yao YR, Xiao HM, Guo MQ. Investigation of changes in endocannabinoids and N-acylethanolamides in biofluids, and their correlations with female infertility. J Chromatogr A 2017. [PMID: 28634068 DOI: 10.1016/j.chroma.2017.06.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Female infertility is a worldwide medical problem, and the scarcity of infertility biomarkers has hindered the ability to launch preventive and therapeutic measures in a timely manner. Intriguingly, alterations in endocannabinoids (eCBs) and N-acylethanolamides (NAEs) have been observed in the biofluids of infertile females. Therefore, a hypothesis of using eCB and NAEs in biofluids as infertility biomarkers was proposed by several researchers; however, little evidence exists to verify the hypothesis. To investigate their correlations with female infertility, we developed a magnetic liquid microextraction-chemical derivatization (MLME-CD) method coupled with liquid chromatography-tandem mass spectrometry for the quantification of eCBs and NAEs in biofluids. The target compounds were first purified with magnetic toluene as sorbents, and then labeled with 4-(N,N-dimethyamino)benzoyl chloride (4-DMABC). The MLME-CD method offered several advantages, including reliable quantification results by preventing the isomerization of eCB, high throughput by requiring 20min for sample preparation, and good sensitivity with limits of detection at 3.0-54.3 fmol. The intra-day and inter-day relative standard deviations were below 14.5%, and the recoveries were 87.4%-117.9%. Concentrations of eCBs and NAEs in the serum of 49 infertile women and 53 fertile women (controls), and in the ovarian follicular fluid of 21 infertile women and 20 controls were then quantified. Using unpaired t test analysis indicated significant differences in AEA and PEA in serum, and OEA in follicular fluid between infertile women and healthy controls, and the areas under the curve were in the range of 0.605-0.707.
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Affiliation(s)
- Jun Ding
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Xiao-Tong Luo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Yan-Ru Yao
- Department of Obstetrics and Gynecology, Medicine Center for Human Reproduction, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, 430071, PR China
| | - Hua-Ming Xiao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Ming-Quan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, PR China.
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52
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Dissolved carbon dioxide flotation-assisted in-syringe dispersive liquid–liquid microextraction coupled with microsampling flame atomic absorption spectrometry for selective determination of palladium in water samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1066-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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53
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Timofeeva I, Timofeev S, Moskvin L, Bulatov A. A dispersive liquid-liquid microextraction using a switchable polarity dispersive solvent. Automated HPLC-FLD determination of ofloxacin in chicken meat. Anal Chim Acta 2017; 949:35-42. [DOI: 10.1016/j.aca.2016.11.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 10/20/2016] [Accepted: 11/05/2016] [Indexed: 10/20/2022]
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54
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Ghazaghi M, Mousavi HZ, Shirkhanloo H, Rashidi A. Stirring-controlled solidified floating solid-liquid drop microextraction as a new solid phase-enhanced liquid-phase microextraction method by exploiting magnetic carbon nanotube-nickel hybrid. Anal Chim Acta 2017; 951:78-88. [DOI: 10.1016/j.aca.2016.11.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 01/30/2023]
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55
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Wei Q, Song Z, Nie J, Xia H, Chen F, Li Z, Lee M. Tablet-effervescence-assisted dissolved carbon flotation for the extraction of four triazole fungicides in water by gas chromatography with mass spectrometry. J Sep Sci 2016; 39:4603-4609. [DOI: 10.1002/jssc.201600619] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/24/2016] [Accepted: 10/03/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Qizhen Wei
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Zhiyu Song
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Jing Nie
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Hailun Xia
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Fujiang Chen
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Zuguang Li
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou China
| | - Mawrong Lee
- Department of Chemistry; National Chung-Hsing University; Taichung Taiwan
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56
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Ríos Á, Zougagh M. Recent advances in magnetic nanomaterials for improving analytical processes. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.03.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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57
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Centrifuge-less dispersive liquid-liquid microextraction base on the solidification of switchable solvent for rapid on-site extraction of four pyrethroid insecticides in water samples. J Chromatogr A 2016; 1472:1-9. [DOI: 10.1016/j.chroma.2016.10.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/28/2016] [Accepted: 10/07/2016] [Indexed: 12/31/2022]
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58
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Nie J, Chen F, Song Z, Sun C, Li Z, Liu W, Lee M. Large volume of water samples introduced in dispersive liquid-liquid microextraction for the determination of 15 triazole fungicides by gas chromatography-tandem mass spectrometry. Anal Bioanal Chem 2016; 408:7461-71. [PMID: 27580608 DOI: 10.1007/s00216-016-9835-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/19/2016] [Accepted: 07/26/2016] [Indexed: 12/15/2022]
Abstract
A novel method of large volume of water samples directly introduced in dispersive liquid-liquid microextraction was developed, which is based on ultrasound/manual shaking-synergy-assisted emulsification and self-generating carbon dioxide gas (CO2) breaking down the emulsion for the determination of 15 triazole fungicides by gas chromatography-tandem mass spectrometry. This technique makes low-density extraction solvent toluene (180 μL) dissolve in 200 mL of samples containing 0.05 mol L(-1) of HCl and 5 % of NaCl (w/v) to form a well emulsion by synergy of ultrasound and manual shaking, and injects NaHCO3 solution (1.0 mol L(-1)) to generate CO2 achieving phase separation with the assistance of ultrasound. The entire process is accomplished within 8 min. The injection of NaHCO3 to generate CO2 achieves phase separation that breaks through the centrifugation limited large volume aqueous samples. In addition, the device could be easily cleaned, and this kind of vessel could be reconfigured for any volume of samples. Under optimal conditions, the low limits of detection ranging from 0.7 to 51.7 ng L(-1), wide linearity, and enrichment factors obtained were in the range 924-3669 for different triazole fungicides. Southern end of the Beijing-Hangzhou Grand Canal water (Hangzhou, China) was used to verify the applicability of the developed method. Graphical Abstract Flow chart of ultrasound/manual shaking-synergy-assisted emulsification and self-generating carbon dioxide gas breaking down the emulsion.
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Affiliation(s)
- Jing Nie
- College of Chemical Engineering, Zhejiang University of Technology, Xiacheng District, Hangzhou, Zhejiang, 310014, China
| | - Fujiang Chen
- College of Chemical Engineering, Zhejiang University of Technology, Xiacheng District, Hangzhou, Zhejiang, 310014, China
| | - Zhiyu Song
- College of Chemical Engineering, Zhejiang University of Technology, Xiacheng District, Hangzhou, Zhejiang, 310014, China
| | - Caixia Sun
- Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, China.,Key Laboratory of Detection for Pesticide Residues, Ministry of Agriculture, Hangzhou, Zhejiang, 310021, China
| | - Zuguang Li
- College of Chemical Engineering, Zhejiang University of Technology, Xiacheng District, Hangzhou, Zhejiang, 310014, China.
| | - Wenhan Liu
- College of Chemical Engineering, Zhejiang University of Technology, Xiacheng District, Hangzhou, Zhejiang, 310014, China.
| | - Mawrong Lee
- Department of Chemistry, National Chung-Hsing University, Taichung, 40227, ROC, Taiwan
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59
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Wang X, Wu L, Cao J, Hong X, Ye R, Chen W, Yuan T. Magnetic effervescent tablet-assisted ionic liquid dispersive liquid-liquid microextraction of selenium for speciation in foods and beverages. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2016; 33:1190-9. [PMID: 27181611 DOI: 10.1080/19440049.2016.1189807] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel, simple and rapid method based on magnetic effervescent tablet-assisted ionic liquid dispersive liquid-liquid microextraction (MEA-IL-DLLME) followed by graphite furnace atomic absorption spectrometry (GFAAS) determination was established for the speciation of selenium in various food and beverage samples. In the procedure, a special magnetic effervescent tablet containing CO2 sources (sodium carbonate and sodium dihydrogenphosphate), ionic liquids and Fe3O4 magnetic nanoparticles (MNPs) was used to combine extractant dispersion and magnetic recovery procedures into a single step. The parameters influencing the microextraction efficiency, such as pH of the sample solution, volume of ionic liquid, amount of MNPs, concentration of the chelating agent, salt effect and matrix effect were investigated and optimised. Under the optimised conditions, the limits of detection (LODs) for Se(IV) were 0.021 μg l(-)(1) and the linear dynamic range was 0.05-5.0 μg l(-)(1). The relative standard deviation for seven replicate measurements of 1.0 μg l(-)(1) of Se(IV) was 2.9%. The accuracy of the developed method was evaluated by analysis of the standard reference materials (GBW10016 tea, GBW10017 milk powder, GBW10043 Liaoning rice, GBW10046 Henan wheat, GBW10048 celery). The proposed method was successfully applied to food and beverage samples including black tea, milk powder, mushroom, soybean, bamboo shoots, energy drink, bottled water, carbonated drink and mineral water for the speciation of Se(IV) and Se(VI) with satisfactory relative recoveries (92.0-108.1%).
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Affiliation(s)
- Xiaojun Wang
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Long Wu
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Jiaqi Cao
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Xincheng Hong
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Rui Ye
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Weiji Chen
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
| | - Ting Yuan
- a College of Civil Engineering and Architecture , Zhejiang University of Water Resources and Electric Power , Hangzhou , China
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60
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Yang X, Zhang P, Li X, Hu L, Gao H, Zhang S, Zhou W, Lu R. Effervescence-assisted β-cyclodextrin/attapulgite composite for the in-syringe dispersive solid-phase extraction of pyrethroids in environmental water samples. Talanta 2016; 153:353-9. [DOI: 10.1016/j.talanta.2016.03.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 02/22/2016] [Accepted: 03/02/2016] [Indexed: 11/24/2022]
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61
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Molaei S, Saleh A, Ghoulipour V, Seidi S. Centrifuge-less Emulsification Microextraction Using Effervescent CO2 Tablet for On-site Extraction of PAHs in Water Samples Prior to GC–MS Detection. Chromatographia 2016. [DOI: 10.1007/s10337-016-3069-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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62
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Vakh C, Pochivalov A, Andruch V, Moskvin L, Bulatov A. A fully automated effervescence-assisted switchable solvent-based liquid phase microextraction procedure: Liquid chromatographic determination of ofloxacin in human urine samples. Anal Chim Acta 2016; 907:54-9. [DOI: 10.1016/j.aca.2015.12.004] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/10/2015] [Accepted: 12/13/2015] [Indexed: 11/30/2022]
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63
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Dispersive Liquid-Liquid Microextraction in the Analysis of Milk and Dairy Products: A Review. J CHEM-NY 2016. [DOI: 10.1155/2016/4040165] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Dispersive liquid-liquid microextraction (DLLME) is an extraction technique developed within the last decade, which involves the dispersion of fine droplets of extraction solvent in an aqueous sample. Partitioning of analytes into the extraction phase is instantaneous due to the very high collective surface area of the droplets. This leads to very high enrichment factors and very low solvent consumption, relative to other liquid or solid phase extraction methods. A comprehensive review of the various modes of DLLME in the analysis of organic and inorganic analytes in dairy products (milk, cheese, infant formula, yogurt, and breast milk) is presented here. Dairy products present a complex sample matrix and the removal of interfering matrix components can prove troublesome. This review focuses on sample pretreatment prior to the appropriate DLLME procedure, the extraction and dispersive solvents chosen, derivatisation methods, and analytical figures of merit. Where possible, a critical comparison of DLLME methods has been undertaken. The overall suitability, and limitations, of DLLME as a sample preparation technique for dairy products has been assessed.
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64
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Medinskaia K, Vakh C, Aseeva D, Andruch V, Moskvin L, Bulatov A. A fully automated effervescence assisted dispersive liquid–liquid microextraction based on a stepwise injection system. Determination of antipyrine in saliva samples. Anal Chim Acta 2016; 902:129-134. [DOI: 10.1016/j.aca.2015.11.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 11/04/2015] [Accepted: 11/08/2015] [Indexed: 11/30/2022]
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65
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Yang M, Wu X, Jia Y, Xi X, Yang X, Lu R, Zhang S, Gao H, Zhou W. Use of magnetic effervescent tablet-assisted ionic liquid dispersive liquid-liquid microextraction to extract fungicides from environmental waters with the aid of experimental design methodology. Anal Chim Acta 2015; 906:118-127. [PMID: 26772131 DOI: 10.1016/j.aca.2015.12.019] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 12/20/2022]
Abstract
In this work, a novel effervescence-assisted microextraction technique was proposed for the detection of four fungicides. This method combines ionic liquid-based dispersive liquid-liquid microextraction with the magnetic retrieval of the extractant. A magnetic effervescent tablet composed of Fe3O4 magnetic nanoparticles, sodium carbonate, sodium dihydrogen phosphate and 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonimide) was used for extractant dispersion and retrieval. The main factors affecting the extraction efficiency were screened by a Plackett-Burman design and optimized by a central composite design. Under the optimum conditions, good linearity was obtained for all analytes in pure water model and real water samples. Just for the pure water, the recoveries were between 84.6% and 112.8%, the limits of detection were between 0.02 and 0.10 μg L(-1) and the intra-day precision and inter-day precision both are lower than 4.9%. This optimized method was successfully applied in the analysis of four fungicides (azoxystrobin, triazolone, cyprodinil, trifloxystrobin) in environmental water samples and the recoveries ranged between 70.7% and 105%. The procedure promising to be a time-saving, environmentally friendly, and efficient field sampling technique.
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Affiliation(s)
- Miyi Yang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Xiaoling Wu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Yuhan Jia
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Xuefei Xi
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Xiaoling Yang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Sanbing Zhang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
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66
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Wang SL, Pang XQ, Cao J, Cao W, Xu JJ, Zhu QY, Zhang QY, Peng LQ. Effervescence and graphitized multi-walled carbon nanotubes assisted microextraction for natural antioxidants by ultra high performance liquid chromatography with electrochemical detection and quadrupole time-of-flight tandem mass spectrometry. J Chromatogr A 2015; 1418:12-20. [DOI: 10.1016/j.chroma.2015.09.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 08/20/2015] [Accepted: 09/15/2015] [Indexed: 02/07/2023]
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67
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LI MJ, ZHANG HY, LIU XZ, CUI CY, SHI ZH. Progress of Extraction Solvent Dispersion Strategies for Dispersive Liquid-liquid Microextraction. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60851-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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68
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Shokri M, Beiraghi A, Seidi S. In situ emulsification microextraction using a dicationic ionic liquid followed by magnetic assisted physisorption for determination of lead prior to micro-sampling flame atomic absorption spectrometry. Anal Chim Acta 2015; 889:123-9. [DOI: 10.1016/j.aca.2015.07.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/19/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
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69
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Lü H, Wang X, Yang J, Xie Z. One-step synthesis of CDTA coated magnetic nanoparticles for selective removal of Cu(II) from aqueous solution. Int J Biol Macromol 2015; 78:209-14. [DOI: 10.1016/j.ijbiomac.2015.03.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 03/09/2015] [Accepted: 03/31/2015] [Indexed: 11/29/2022]
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70
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71
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Toledo-Neira C, Álvarez-Lueje A. Ionic liquids for improving the extraction of NSAIDs in water samples using dispersive liquid–liquid microextraction by high performance liquid chromatography-diode array–fluorescence detection. Talanta 2015; 134:619-626. [DOI: 10.1016/j.talanta.2014.11.067] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/28/2014] [Accepted: 11/29/2014] [Indexed: 12/23/2022]
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72
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Lasarte-Aragonés G, Lucena R, Cárdenas S, Valcárcel M. Use of switchable hydrophilicity solvents for the homogeneous liquid-liquid microextraction of triazine herbicides from environmental water samples. J Sep Sci 2015; 38:990-5. [DOI: 10.1002/jssc.201401224] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 12/20/2014] [Accepted: 12/21/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Guillermo Lasarte-Aragonés
- Department of Analytical Chemistry; Institute of Fine Chemistry and Nanochemistry; Campus de Rabanales; University of Córdoba; Córdoba Spain
| | - Rafael Lucena
- Department of Analytical Chemistry; Institute of Fine Chemistry and Nanochemistry; Campus de Rabanales; University of Córdoba; Córdoba Spain
| | - Soledad Cárdenas
- Department of Analytical Chemistry; Institute of Fine Chemistry and Nanochemistry; Campus de Rabanales; University of Córdoba; Córdoba Spain
| | - Miguel Valcárcel
- Department of Analytical Chemistry; Institute of Fine Chemistry and Nanochemistry; Campus de Rabanales; University of Córdoba; Córdoba Spain
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73
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Beiraghi A, Shokri M, Seidi S, Godajdar BM. Magnetomotive room temperature dicationic ionic liquid: A new concept toward centrifuge-less dispersive liquid–liquid microextraction. J Chromatogr A 2015; 1376:1-8. [DOI: 10.1016/j.chroma.2014.12.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 11/29/2014] [Accepted: 12/01/2014] [Indexed: 12/29/2022]
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74
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Effervescent-salt-assisted dispersive micro-solid-phase extraction using mesoporous hybrid materials coupled with ultra-performance liquid chromatography for the determination of trace-level compounds in complicated plant preparations. Anal Bioanal Chem 2014; 407:1763-73. [DOI: 10.1007/s00216-014-8396-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/20/2014] [Accepted: 12/08/2014] [Indexed: 10/24/2022]
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75
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Jiang W, Chen X, Liu F, You X, Xue J. Effervescence-assisted dispersive liquid-liquid microextraction using a solid effervescent agent as a novel dispersion technique for the analysis of fungicides in apple juice. J Sep Sci 2014; 37:3157-63. [DOI: 10.1002/jssc.201400695] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/01/2014] [Accepted: 08/02/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Wenqing Jiang
- College of Science; China Agricultural University; Beijing P. R. China
| | - Xiaochu Chen
- College of Science; China Agricultural University; Beijing P. R. China
| | - Fengmao Liu
- College of Science; China Agricultural University; Beijing P. R. China
| | - Xiangwei You
- College of Science; China Agricultural University; Beijing P. R. China
- Tobacco Research Institute; Chinese Academy of Agricultural Sciences; Qingdao P. R. China
| | - Jiaying Xue
- College of Science; China Agricultural University; Beijing P. R. China
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76
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Hu SS, Cao W, Dai HB, Da JH, Ye LH, Cao J, Li XY. Ionic-liquid-micelle-functionalized mesoporous Fe3O4 microspheres for ultraperformance liquid chromatography determination of anthraquinones in dietary supplements. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8822-8829. [PMID: 25119112 DOI: 10.1021/jf502323f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A magnetic solid-phase extraction method using ionic liquid (IL)-micelle-functionalized mesoporous Fe3O4 microspheres (MFMs) was proposed for the preconcentration of anthraquinones in dietary supplements. The analytes were then determined by ultraperformance liquid chromatography combined with an ultraviolet detector. The extraction parameters, such as the choice of ILs, the concentrations of ILs and MFMs, the pH of diluent, and the concentration of acetic acid in the eluent, were presented. Under the optimized conditions, the limits of detection and limits of quantitation were 0.4-2.8 ng mL(-1) and 1.4-9.4 ng mL(-1), respectively. The accuracy of the proposed method was investigated by recovery in herb and granules of Radix et Rhizoma Rhei, yielding values between 89.25% and 96.48%. The use of the proposed method in the sample pretreatment of complex dietary supplements is feasible due to the high surface area and excellent adsorption capacity of MFMs after modification with IL.
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Affiliation(s)
- Shuai-Shuai Hu
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University , Hangzhou 310036, China
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González-Fuenzalida RA, Moliner-Martínez Y, Prima-Garcia H, Ribera A, Campins-Falcó P, Zaragozá RJ. Evaluation of Superparamagnetic Silica Nanoparticles for Extraction of Triazines in Magnetic in-Tube Solid Phase Microextraction Coupled to Capillary Liquid Chromatography. NANOMATERIALS 2014; 4:242-255. [PMID: 28344221 PMCID: PMC5304668 DOI: 10.3390/nano4020242] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 03/24/2014] [Accepted: 03/25/2014] [Indexed: 11/16/2022]
Abstract
The use of magnetic nanomaterials for analytical applications has increased in the recent years. In particular, magnetic nanomaterials have shown great potential as adsorbent phase in several extraction procedures due to the significant advantages over the conventional methods. In the present work, the influence of magnetic forces over the extraction efficiency of triazines using superparamagnetic silica nanoparticles (NPs) in magnetic in tube solid phase microextraction (Magnetic-IT-SPME) coupled to CapLC has been evaluated. Atrazine, terbutylazine and simazine has been selected as target analytes. The superparamagnetic silica nanomaterial (SiO2-Fe3O4) deposited onto the surface of a capillary column gave rise to a magnetic extraction phase for IT-SPME that provided a enhancemment of the extraction efficiency for triazines. This improvement is based on two phenomena, the superparamegnetic behavior of Fe3O4 NPs and the diamagnetic repulsions that take place in a microfluidic device such a capillary column. A systematic study of analytes adsorption and desorption was conducted as function of the magnetic field and the relationship with triazines magnetic susceptibility. The positive influence of magnetism on the extraction procedure was demonstrated. The analytical characteristics of the optimized procedure were established and the method was applied to the determination of the target analytes in water samples with satisfactory results. When coupling Magnetic-IT-SPME with CapLC, improved adsorption efficiencies (60%–63%) were achieved compared with conventional adsorption materials (0.8%–3%).
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Affiliation(s)
- R A González-Fuenzalida
- Department of Analytical Chemistry. Faculty of Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, Valencia E-46100, Spain.
| | - Y Moliner-Martínez
- Department of Analytical Chemistry. Faculty of Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, Valencia E-46100, Spain.
| | - Helena Prima-Garcia
- Instituto de Ciencia Molecular (ICMol), University of Valencia, Catedrático José Beltrán 2, Paterna, Valencia E-46980, Spain.
| | - Antonio Ribera
- Instituto de Ciencia Molecular (ICMol), University of Valencia, Catedrático José Beltrán 2, Paterna, Valencia E-46980, Spain.
| | - P Campins-Falcó
- Department of Analytical Chemistry. Faculty of Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, Valencia E-46100, Spain.
| | - Ramon J Zaragozá
- Department of Organic Chemistry, Faculty of Chemistry, University of Valencia, Dr. Moliner 50, E-46100 Burjassot, Valencia E-46100, Spain.
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