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Aydin F, Çakmak R, Levent A, Soylak M. Silica Gel‐Immobilized 5‐aminoisophthalohydrazide: A novel sorbent for solid phase extraction of Cu, Zn and Pb from natural water samples. Appl Organomet Chem 2020; 34. [DOI: https:/doi.org/10.1002/aoc.5481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/07/2019] [Indexed: 07/01/2024]
Abstract
A novel silica sorbent, silica gel‐immobilized 5‐aminoisophthalohydrazide (SiO2‐APH), was prepared by the condensation of 3‐chloropropyl‐functionalized silica gel with 5‐aminoisophthalohydrazide (APH) derived from dimethyl 5‐aminoisophthalate as a starting material and used for separation and preconcentration of Cu, Zn, and Pb metals in water samples using Flame Atomic Absorption Spectrometry (FAAS). The characterization of the new sorbent was carried out by Elemental Analysis, Thermogravimetric Analysis (TGA) and Fourier Transform Infrared Spectroscopy (FTIR). Important analytical parameters including as pH, amount of sorbent, type and amount of eluting solvent, sample volume, vortex and ultrasonic bath time, matrix ions that effect the developed SiO2‐APH‐solid phase extraction (SPE) method were investigated and optimum parameters were detected. Recoveries of examined metals were obtained as 98% for Cu and Pb and 101% for Zn. The relative standard deviation (RSD, n = 8) of Cu, Zn and Pb metals were 3.2, 2.8 and 1.6%, respectively. Limit of detections (LODs) (n = 10) were found as 2.7 μg L−1 for Cu, 7.4 μg L−1 for Zn and 3.5 μg L−1 for Pb μg L−1. The accuracy of the new method was assessed by analyzing of TMDA‐51.4 and TMDA‐70.2 certified reference materials. The results obtained for metals were in a good agreement with certified values. Addition/recovery test was applied to the real well, river, dam and stream water samples to check the accuracy of the method. The results showed that the developed SiO2‐APH‐SPE method can be effectively used as an alternative method for determination of Cu, Zn, and Pb metals in water samples.
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Affiliation(s)
- Funda Aydin
- Faculty of Pharmacy, Department of Basic Sciences Van Yüzüncü Yıl University 65080 Van Turkey
| | - Reşit Çakmak
- Vocational School of Health Services Batman University 72060 Batman Turkey
| | - Abdulkadir Levent
- Faculty of Science and Letters, Department of Chemistry Batman University 72100 Batman Turkey
| | - Mustafa Soylak
- Faculty of Sciences, Department of Chemistry Erciyes University 38039 Kayseri Turkey
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Aydin F, Çakmak R, Levent A, Soylak M. Silica Gel‐Immobilized 5‐aminoisophthalohydrazide: A novel sorbent for solid phase extraction of Cu, Zn and Pb from natural water samples. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Funda Aydin
- Faculty of Pharmacy, Department of Basic SciencesVan Yüzüncü Yıl University 65080 Van Turkey
| | - Reşit Çakmak
- Vocational School of Health ServicesBatman University 72060 Batman Turkey
| | - Abdulkadir Levent
- Faculty of Science and Letters, Department of ChemistryBatman University 72100 Batman Turkey
| | - Mustafa Soylak
- Faculty of Sciences, Department of ChemistryErciyes University 38039 Kayseri Turkey
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Characterization of oligosorbents and application to the purification of ochratoxin A from wheat extracts. Anal Bioanal Chem 2013; 406:1233-40. [PMID: 24309623 DOI: 10.1007/s00216-013-7509-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/06/2013] [Accepted: 11/12/2013] [Indexed: 10/25/2022]
Abstract
The aim of this work was to optimize the preparation of an anti-ochratoxin A (OTA) oligosorbent (OS), a solid-phase extraction sorbent based on OTA aptamers covalently immobilized on sepharose. Different syntheses were carried out by modifying the side of the oligonucleotide chain bound to the sepharose, the length of the spacer arm between the aptamer and the sepharose and the amount of the aptamers introduced during the covalent grafting. Indeed, the capacity of OSs prepared using 3'- or 5'-amino-modified sequences with a C6 or a C12 was studied. In the best conditions, the concentration of aptamers sequence used during their grafting was increased and a capacity close to 40 nmol g(-1) of OS was reached. The potential of the resulting OSs was also studied in pure media. For this, their selectivity was checked by comparing them to a control sorbent prepared without immobilizing aptamers. Extraction recoveries close to 100% were obtained on all OSs, while no retention was observed on the control sorbent. OS does not demonstrate any cross-reactivity towards OTA metabolites, i.e., ochratoxin B and ochratoxin hydroquinone. The oligosorbent was finally applied to the clean-up of OTA from wheat sample extracts. Extraction recoveries were not affected by matrix interferences and the resulting chromatogram clearly highlights the selectivity of the sorbent that allows the removal of matrix components thus improving the reliability of the quantitation of OTA in real samples.
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Polo-Luque M, Simonet B, Valcárcel M. Effect of carbon nanotubes on properties of soft materials based on carbon nanotubes–ionic liquid combinations. Talanta 2013; 110:160-3. [DOI: 10.1016/j.talanta.2013.02.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 02/11/2013] [Accepted: 02/13/2013] [Indexed: 11/30/2022]
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Augusto F, Hantao LW, Mogollón NG, Braga SC. New materials and trends in sorbents for solid-phase extraction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.08.012] [Citation(s) in RCA: 210] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lu S, Fan R, Yu Z, Sheng G, Fu J. AN IMPROVED METHOD FOR THE DETERMINATION OF URINARY 1-HYDROXYPYRENE BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH FLUORESCENCE DETECTION. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.619041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Shaoyou Lu
- a State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resources Utilization , Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou , China
- b Shenzhen Center for Disease Control and Prevention , Shenzhen , China
| | - Ruifang Fan
- c South China Normal University , Guangzhou , China
| | - Zhiqiang Yu
- a State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resources Utilization , Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou , China
| | - Guoying Sheng
- a State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resources Utilization , Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou , China
| | - Jiamo Fu
- a State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resources Utilization , Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou , China
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Madru B, Chapuis-Hugon F, Pichon V. Novel extraction supports based on immobilised aptamers: evaluation for the selective extraction of cocaine. Talanta 2011; 85:616-24. [PMID: 21645749 DOI: 10.1016/j.talanta.2011.04.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 04/05/2011] [Accepted: 04/11/2011] [Indexed: 11/16/2022]
Abstract
A new kind of selective sorbent based on the use of aptamers and dedicated to the selective solid phase extraction was developed. Cocaine aptamer was chosen as model aptamer to demonstrate the feasibility of this material and to provide a complete evaluation of the synthesized sorbent. The effect of different parameters such as the nature of the immobilisation support (silica, agarose), the type of immobilisation (covalent or non-covalent) and the length of the spacer arm (C(6) or C(12)) were studied. Therefore, various oligosorbents based on different immobilisation strategies were synthesized and characterised by estimating the extraction recovery and the capacity of cocaine and the binding efficiency of aptamers. Control supports without immobilised aptamers were simultaneously studied in parallel to assess the selectivity brought by the oligosorbents. The oligosorbent based on CNBr-activated sepharose showed the best performances with an extraction recovery for cocaine of 90% while 6% was obtained on the control sorbent. The high selectivity brought by the oligosorbent was then illustrated by applying the oligoextraction followed by LC/MS analysis to a post-mortem blood (cocaine overdose). Results were compared to those resulting from a conventional protein precipitation procedure. The presence of co-extracted interfering compounds was strongly reduced with the treatment by oligoextraction. A limit of quantification of 0.5 ng/mL was obtained that is largely lower than the concentration found after a single intake of cocaine.
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Affiliation(s)
- Benjamin Madru
- Dpt of Analytical, Bioanalytical Sciences and Miniaturization (LSABM, UMR PECSA 7195 CNRS-UPMC-ESPCI ParisTech), ESPCI ParisTech, 10 rue Vauquelin, 75231 Paris, France
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Madru B, Chapuis-Hugon F, Peyrin E, Pichon V. Determination of cocaine in human plasma by selective solid-phase extraction using an aptamer-based sorbent. Anal Chem 2010; 81:7081-6. [PMID: 19630418 DOI: 10.1021/ac9006667] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A complete characterization is presented of a highly selective solid-phase extraction (SPE) sorbent which exploits the properties of aptamers. An oligosorbent based on aptamers immobilized on a solid support was synthesized and tested for the selective extraction of cocaine from human plasma. Anticocaine aptamers were immobilized to CNBr-activated Sepharose, and an extraction procedure was developed in pure media. Specific retention of cocaine on the oligosorbent was demonstrated, and the capacity of the support was determined. This oligosorbent was then applied to the selective extraction of cocaine from plasma at a concentration of 0.4 mg L(-1), i.e., corresponding to the plasma concentration reached after an intake of a single dose of cocaine. Extraction recovery close to 90% was obtained. Moreover, interfering compounds that perturbed cocaine quantification when using a standard SPE sorbent were not retained on the oligosorbent, thus allowing fast and reliable analyses of plasma samples with an estimated limit of detection of 0.1 microg mL(-1).
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Affiliation(s)
- Benjamin Madru
- Department of Environment and Analytical Chemistry, ESPCI ParisTech, UMR PECSA (ESPCI ParisTech-UPMC Univ Paris 06-CNRS), 10 rue Vauquelin, 75231 Paris cedex 05, France
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Cingöz A, Hugon-Chapuis F, Pichon V. Total on-line analysis of a target protein from plasma by immunoextraction, digestion and liquid chromatography–mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:213-21. [DOI: 10.1016/j.jchromb.2009.07.032] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2009] [Revised: 07/17/2009] [Accepted: 07/27/2009] [Indexed: 10/20/2022]
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Cingöz A, Hugon-Chapuis F, Pichon V. Evaluation of various immobilized enzymatic microreactors coupled on-line with liquid chromatography and mass spectrometry detection for quantitative analysis of cytochrome c. J Chromatogr A 2008; 1209:95-103. [DOI: 10.1016/j.chroma.2008.08.120] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 08/21/2008] [Accepted: 08/21/2008] [Indexed: 10/21/2022]
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Chen Y, Guo Z, Wang X, Qiu C. Sample preparation. J Chromatogr A 2007; 1184:191-219. [PMID: 17991475 DOI: 10.1016/j.chroma.2007.10.026] [Citation(s) in RCA: 252] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 10/08/2007] [Accepted: 10/10/2007] [Indexed: 11/17/2022]
Abstract
A panorama of sample preparation methods has been composed from 481 references, with a highlight of some promising methods fast developed during recent years and a somewhat brief introduction on most of the well-developed methods. All the samples were commonly referred to molecular composition, being extendable to particles including cells but not to organs, tissues and larger bodies. Some criteria to evaluate or validate a sample preparation method were proposed for reference. Strategy for integration of several methods to prepare complicated protein samples for proteomic studies was illustrated and discussed.
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Affiliation(s)
- Yi Chen
- Beijing National Laboratory of Molecular Science, Laboratory of Analytical Chemistry for Life Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
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