Sol-gel approach for fabrication of coated anodized titanium wire for solid-phase microextraction: highly efficient adsorbents for enrichment of trace polar analytes | |
Department | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Jia J(贾静)1,2; Xu LL(许丽丽)1,2; Wang S(王帅)1; Wang LC(王立成)1; Liu X(刘霞)1; Wang LC(王立成); Liu X(刘霞) | |
2014 | |
Source Publication | Analytical and Bioanalytical Chemistry |
ISSN | 1618-2642 |
Volume | 406Issue:13Pages:3209-3217 |
Abstract | Nanotubular titania film was prepared in situ on titanium wire and was used as the fiber substrate for solid-phase microextraction (SPME) because of its high surface-to-volume ratio, easy preparation, and mechanical stability. Three different functional coatings, β-cyclodextrin (β-CD), β-cyclodextrin-co-poly(ethylenepropylene glycol) (β-CD/PEG), and polyethylene glycol (PEG)-based sorbents were chemically bonded to the nanostructured wire surface via sol-gel technology to further enhance the absorbing capability and extraction selectivity. Coupled to gas chromatography-flame ionic detection (GC-FID), the prepared SPME fibers were investigated using diverse compounds. The results indicated that the fibers showed good mechanical strength, excellent thermal stability, and wonderful capacity and selectivity to polar compounds, including polar aromatic compounds, alcohols, and ketones. Combining the superior hydrophilic property of a bonded functional molecule and the highly porous structure of a fiber coating, the prepared PEG-coated SPME fiber showed much higher adsorption affinity to ephedrine and methylephedrine than β-CD and β-CD/PEG fibers. The as-established PEG-coated SPME-GC analytical method provided excellent sensitivity (LODs, 0.004 and 0.001 ng mL–1 for ephedrine and methylephedrine, respectively) and better linear range (0.01–2 000 μg L−1). In addition, it has surprising repeatability and reproducibility. Finally, the present approach was used to analyze ephedrine and methylephedrine from real urine samples, and reliable results were obtained. |
Keyword | Anodized Titanium Wire Sol-gel Solid-phase Microextraction Ephedrine Methylephedrine |
Subject Area | 分析化学与药物化学 |
DOI | 10.1007/s00216-014-7727-6 |
Funding Organization | the National Natural Science Foundation of China (no. 21175143;21105107);the National Science and Technology Major Project of China (nos. 2011ZX05010;2011ZX05011) |
Indexed By | SCI |
If | 3.436 |
Language | 英语 |
Funding Project | 药物分离材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21313 |
Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Corresponding Author | Wang LC(王立成); Liu X(刘霞) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
Recommended Citation GB/T 7714 | Jia J,Xu LL,Wang S,et al. Sol-gel approach for fabrication of coated anodized titanium wire for solid-phase microextraction: highly efficient adsorbents for enrichment of trace polar analytes[J]. Analytical and Bioanalytical Chemistry,2014,406(13):3209-3217. |
APA | Jia J.,Xu LL.,Wang S.,Wang LC.,Liu X.,...&刘霞.(2014).Sol-gel approach for fabrication of coated anodized titanium wire for solid-phase microextraction: highly efficient adsorbents for enrichment of trace polar analytes.Analytical and Bioanalytical Chemistry,406(13),3209-3217. |
MLA | Jia J,et al."Sol-gel approach for fabrication of coated anodized titanium wire for solid-phase microextraction: highly efficient adsorbents for enrichment of trace polar analytes".Analytical and Bioanalytical Chemistry 406.13(2014):3209-3217. |
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