Preparation of a graphene oxide/silica composite modified with nitro-substituted tris(indolyl)methane as a solid-phase extraction sorbent for the extraction of organic acids | |
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 |
Wang N(王娜)1,2; Yu H(于辉)1,2; Shao SJ(邵士俊)1; Shao SJ(邵士俊) | |
2016 | |
Source Publication | Journal of Separation Science |
ISSN | 1615-9306 |
Volume | 39Issue:9Pages:1700-1708 |
Abstract | This paper describes the use of graphene oxide/silica modified with nitro-substituted tris(indolyl)methane as a solid-phase extraction sorbent for the determination of organic acids. The resultant graphene oxide/silica modified with nitro-substituted tris(indolyl)methane was characterized by FTIR spectroscopy and adsorption experiments. Solid-phase extraction parameters such as sorbent type, sample solution pH, sample loading rate, eluent salt concentration, eluent methanol concentration, elution rate, sample loading, and elution volume were optimized. The method showed good precision, accuracy, sensitivity, and linear response for organic acids analysis over a concentration range of 1–100 μg/L for benzoic acid, p-methoxybenzoic acid, and salicylic acid and 5–100 μg/L for the remaining organic acids (cinnamic acid, p-chlorobenzoic acid, and p-bromobenzoic acid) with coefficients of determination (r2) of higher than 0.9957. Limits of detection from 0.50 to 1.0 μg/L for six organic acids were achieved. The developed method was successfully applied to determine organic acids in real samples. |
Keyword | Graphene Oxide High-performance Liquid Chromatography Organic Acids Solid-phase Extraction Tris(Indolyl)Methane |
Subject Area | 分析化学与药物化学 |
DOI | 10.1002/jssc.201501362 |
Funding Organization | the National Natural Science Foundation of China (21275150);the Natural Science Foundation of Gansu Province (1210RJDA013;145RJZA025) |
Indexed By | SCI |
If | 2.557 |
Language | 英语 |
Funding Project | 药物分子识别研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21109 |
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 | Shao SJ(邵士俊) |
Affiliation | 1.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, PR China 2.University Chinese Academy Sciences, Beijing, P.R. China |
Recommended Citation GB/T 7714 | Wang N,Yu H,Shao SJ,et al. Preparation of a graphene oxide/silica composite modified with nitro-substituted tris(indolyl)methane as a solid-phase extraction sorbent for the extraction of organic acids[J]. Journal of Separation Science,2016,39(9):1700-1708. |
APA | Wang N,Yu H,Shao SJ,&邵士俊.(2016).Preparation of a graphene oxide/silica composite modified with nitro-substituted tris(indolyl)methane as a solid-phase extraction sorbent for the extraction of organic acids.Journal of Separation Science,39(9),1700-1708. |
MLA | Wang N,et al."Preparation of a graphene oxide/silica composite modified with nitro-substituted tris(indolyl)methane as a solid-phase extraction sorbent for the extraction of organic acids".Journal of Separation Science 39.9(2016):1700-1708. |
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