Colorimetric recognition and sensing of thiocyanate with a gold nanoparticle probe and its application to the determination of thiocyanate in human urine samples
文献类型：期刊论文
| 作者 | Zhang J ; Yang C ; Wang XL ; Yang XR |
| 刊名 | analytical and bioanalytical chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 403期号:7页码:1971-1981 |
| 关键词 | CAPILLARY-ZONE-ELECTROPHORESIS HUMAN SALIVA SELECTIVE ELECTRODE ION CHROMATOGRAPHY CIGARETTE-SMOKING PROTEIN NITRATE FLUIDS ACID SPECIFICITY |
| ISSN号 | 1618-2642 |
| 通讯作者 | yang xr |
| 中文摘要 | a colorimetric method for the determination of thiocyanate (scn-) ion with a cystamine-modified gold nanoparticle (au np) probe is presented. in this method, recognition is based on electrostatic attraction and directional hydrogen bonding between thiocyanate and cystamine on the surface of an au np. in phosphate buffer solution (pbs, ph 5.2, 10 mm), the cystamine-modified au nps readily aggregated upon incubation with n,n-dimethyl-1-naphthylamine (denoted "2n"), and a visible change in the color of the solution from red to blue was observed. when present, thiocyanate interacted with the gold nanoparticle probe more prominently than 2n, thereby protecting the gold nanoparticles and attenuating the degree of aggregation. the solution was observed (by the naked eye) to change in color from blue to purple and then back to red as a function of thiocyanate concentration (< 10 mu m). iodide was noted to be a significant interferent; however, the optical absorption spectrum in the presence of iodide was fortunately easily distinguished from that for thiocyanate, thereby making it possible to discriminate iodide from thiocyanate. it was possible to determine thiocyanate in human urine samples using this method. this colorimetric method opens up a new avenue for assaying thiocyanate considering its rapid readout and simple implementation, which makes it convenient to determine thiocyanate in biological samples, especially at levels below 100 mu m. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304401100021 |
| 公开日期 | 2013-05-20 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48184]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang J,Yang C,Wang XL,et al. Colorimetric recognition and sensing of thiocyanate with a gold nanoparticle probe and its application to the determination of thiocyanate in human urine samples[J]. analytical and bioanalytical chemistry,2012,403(7):1971-1981. |
| APA | Zhang J,Yang C,Wang XL,&Yang XR.(2012).Colorimetric recognition and sensing of thiocyanate with a gold nanoparticle probe and its application to the determination of thiocyanate in human urine samples.analytical and bioanalytical chemistry,403(7),1971-1981. |
| MLA | Zhang J,et al."Colorimetric recognition and sensing of thiocyanate with a gold nanoparticle probe and its application to the determination of thiocyanate in human urine samples".analytical and bioanalytical chemistry 403.7(2012):1971-1981. |
入库方式： OAI收割
来源：长春应用化学研究所
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