Single-walled carbon nanotubes modified carbon ionic liquid electrode for sensitive electrochemical detection of rutin

Electrochemical detection of rutin with a carbon ionic liquid electrode modified by Nafion, graphene oxide and ionic liquid composite

“…According to the Nicholson's equation [27], the values of charge transfer coefficient (α), the electron transfer number (n) and the electrode reaction standard rate constant (k s ) were calculated as 0.294, 1.89 and 2.97 s −1 respectively. The k s value was close to the reported value of 2.35 s −1 on graphene modified GCE [28], and 2.61 s −1 on single-walled carbon nanotubes (SWCNTs) modified CILE [29], indicating that the GO-IL composite exhibited the similar functions with the high conductivity of GR or SWCNTs, and a fast electron transfer between the redox center of rutin and the modified electrode could be achieved.…”

Determination of Rutin in Black Tea by Adsorption Voltammetry (AdV) in the Presence of Morin and Quercetin

“…[BMIM]BF 4 has been used in the determination of rutin using a carbon ceramic electrode (Zhan et al 2010), or a single walled carbon nanotube modified electrode (Zhu et al 2010) with outstanding results. Moreover, the determination of rutin using PEDOT and [BMIM]BF 4 has not been reported.…”

“…Type piridinium (Sun et al 2008(Sun et al , 2013a(Sun et al , b, c, 2014 and type imidazolium (Franzoi et al 2009;Zhanga and Zheng 2008;Zhu et al 2010;Zhan et al 2010) ionic liquids have been those most used in the modification of electrodes to determine rutin with detection limits of 2.5 × 10 −9 and 1 × 10 −8 , respectively. The aim of this study is to detect and quantify rutin in real samples.…”

Highly sensitive and simultaneous determination of ascorbic acid and rutin at an acetylene black paste electrode coated with cetyltrimethyl ammonium bromide film

“…Compared with other analytical methods, the characteristic advantages of electrochemical methods include its simplicity, high sensitivity, good stability, low-cost instrumentation, small dimensions and on-site monitoring [9]. Because rutin and AA are both electroactive compounds, various electrochemical methods for the individual determination of rutin [10][11][12][13][14][15][16] and AA [17][18][19] have been described. However, the oxidation peak potential of AA is very close to that of rutin, which results in poor selectivity determination of rutin in real samples on conventional electrodes.…”

“…Chemically modified electrodes have been used to solve this problem. Single-walled carbon nanotubes modified carbon ionic liquid electrode [14], pyridinium-based ionic liquid modified carbon paste electrode [15] and gold nanoparticles/ethylenediamine/carbon nanotube modified glassy carbon electrode [16] have been fabricated and successfully applied in the selective determination of rutin in the presence of a certain concentration of AA. However, simultaneous determination of AA and rutin by voltammetry has not been reported in any literature.…”