{"title":"多壁碳纳米管修饰玻碳电极增强对4-亚硝基- n, n -二甲基苯胺的传感","authors":"Aaron Mary Ratna Sylvia, C. Vedhi, A. Gomathi","doi":"10.30799/JNST.181.18040528","DOIUrl":null,"url":null,"abstract":"The voltammetric behaviour of 4-nitroso-N,N–dimethylaniline (4-NDMA) was investigated on plain glassy carbon electrode (GCE) and multi-walled carbon nanotube modified GCE (MWCNT/GCE) using cyclic voltammetry. Effects of pH, scan rate and concentration were studied. The surface morphology of the modified electrode in the absence and presence of 4-NDMA molecules was characterized by atomic force microscope (AFM). A systematic study on the variation of experimental parameters with differential pulse stripping voltammetry (DPSV) was carried out and the optimized experimental conditions were arrived. MWCNT/GCE performed well compared with the plain GCE system and the limit of detection (LOD) was found to be 7.5 ng/mL 0.1056 ng/mL for 4-NDMA on plain GCE and MWCNT/GCE respectively.","PeriodicalId":268157,"journal":{"name":"Volume 4,Issue 5,2018","volume":"65 5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced Sensing of 4-Nitroso-N,N–Dimethyl Aniline using Multi-Walled Carbon Nano Tube Modified Glassy Carbon Electrode\",\"authors\":\"Aaron Mary Ratna Sylvia, C. Vedhi, A. Gomathi\",\"doi\":\"10.30799/JNST.181.18040528\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The voltammetric behaviour of 4-nitroso-N,N–dimethylaniline (4-NDMA) was investigated on plain glassy carbon electrode (GCE) and multi-walled carbon nanotube modified GCE (MWCNT/GCE) using cyclic voltammetry. Effects of pH, scan rate and concentration were studied. The surface morphology of the modified electrode in the absence and presence of 4-NDMA molecules was characterized by atomic force microscope (AFM). A systematic study on the variation of experimental parameters with differential pulse stripping voltammetry (DPSV) was carried out and the optimized experimental conditions were arrived. MWCNT/GCE performed well compared with the plain GCE system and the limit of detection (LOD) was found to be 7.5 ng/mL 0.1056 ng/mL for 4-NDMA on plain GCE and MWCNT/GCE respectively.\",\"PeriodicalId\":268157,\"journal\":{\"name\":\"Volume 4,Issue 5,2018\",\"volume\":\"65 5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-12-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Volume 4,Issue 5,2018\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.30799/JNST.181.18040528\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Volume 4,Issue 5,2018","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30799/JNST.181.18040528","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
采用循环伏安法研究了4-亚硝基-n, n -二甲基苯胺(4-NDMA)在普通玻碳电极(GCE)和多壁碳纳米管修饰的玻碳电极(MWCNT/GCE)上的伏安行为。研究了pH、扫描速率和扫描浓度对扫描效果的影响。用原子力显微镜(AFM)表征了4-NDMA分子存在和不存在时修饰电极的表面形貌。采用差分脉冲溶出伏安法(DPSV)对实验参数的变化进行了系统研究，得出了最佳实验条件。与普通GCE体系相比，MWCNT/GCE体系表现良好，4-NDMA在普通GCE体系和MWCNT/GCE体系上的检出限分别为7.5 ng/mL和0.1056 ng/mL。
Enhanced Sensing of 4-Nitroso-N,N–Dimethyl Aniline using Multi-Walled Carbon Nano Tube Modified Glassy Carbon Electrode
The voltammetric behaviour of 4-nitroso-N,N–dimethylaniline (4-NDMA) was investigated on plain glassy carbon electrode (GCE) and multi-walled carbon nanotube modified GCE (MWCNT/GCE) using cyclic voltammetry. Effects of pH, scan rate and concentration were studied. The surface morphology of the modified electrode in the absence and presence of 4-NDMA molecules was characterized by atomic force microscope (AFM). A systematic study on the variation of experimental parameters with differential pulse stripping voltammetry (DPSV) was carried out and the optimized experimental conditions were arrived. MWCNT/GCE performed well compared with the plain GCE system and the limit of detection (LOD) was found to be 7.5 ng/mL 0.1056 ng/mL for 4-NDMA on plain GCE and MWCNT/GCE respectively.
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