[PDF] Top 20 Electrochemical determination of hydroquinone using hydrophobic ionic liquid-type carbon paste electrodes

... amplitude was 5 mV (vs. OCP), and the frequencies swept from 10 4 Hz to 10 -1 Hz. It was observed that there was quite different in contour between the CPE containing the IL and that using the mineral oil. In the ... See full document

... temperature ionic liquid modified electrode has been widely used in the electroactive compounds analysis owing to its unique electrochemical properties, including higher ionic conductivity, ... See full document

... conventional electrochemical detection of nucleobases in aqueous solutions is based on electroreduction/electrooxidation at renewable electrode ...of electrodes including disposable and regenerated ones ... See full document

... the electrochemical methods provide a facile and rapid way for environmental analysis owing to its high sensitivity, fast response and low cost ...the electrochemical methods have been considered as one ... See full document

... modified electrodes can promote the electron transfer of analytes and enhance their response ...sensitivity. Ionic liquid is composed entirely of ...wide electrochemical window, excellent ... See full document

... Besides, the interference of various cations and anions existing in water samples like Na + , Mg 2+ , Pb 2+ , Cd 2+ , Mn +2 , K + , Ca +2 , Cu 2+ and Cl ‒ with 100-folds concentration has been investigated on the ... See full document

... Three carbon paste electrodes for determination of terazosin hydrochloride (TerazCl) were prepared based on ion association complexes with sodium tetraphenylborate (NaTPB), ammonium reineckate ... See full document

... sample) were pipetted into a 10 ml of volumetric flask and completed to 10 ml with deionized water. Nitrogen gas was purged for 5 min. after the solution was transferred to the voltammetric cell. Then, accumulation on ... See full document

... Table 1 lists the main electrochemical parameters of the compounds mentioned above and their hydration radii. Compounds such as Prussian blue and similar compounds exhibit structures which present zeolitic cavity, ... See full document

... There are several detection methods that have been used to detect and quantify the concentration of heavy metals in herb products, including atomic absorption spectroscopy (AAS) (Silva and dos Santos Roldan, 2009) and ... See full document

... on carbon nanoparticle [31], which exhibits excellent performance towards some organic and inorganic ...conductive carbon black will be more ...the paste electrodes depends on the particular ... See full document

... g carbon nanotubes in a mortar and ...wetted paste, was obtained. The paste was then packed into a glass ...the paste out of the tube and polishing it on a weighing ... See full document

... The urine samples were stored in a refrigerator immediately after collection. Ten milliliters of the sample was centrifuged for 10 min at 2000 rpm. The supernatant was filtered using a 0.45 μm filter and then ... See full document

... of using phosphate buffer pH 8 to introduce small changes in pH during the analysis of the tested ...for carbon paste and modified carbon nanotubes carbon paste sensors, ...upon ... See full document

... conventional electrochemical cell. The electrode system contained a carbon paste working electrode ...The carbon paste electrode was prepared as follows: 70% graphite powder (particle ... See full document

... and carbon paste electrodes, have been ...for using as a sensing element in both kinds of ...ALP-TPB. Carbon paste electrode was t h e n designed to have an electrode with the ... See full document

... Carbon paste electrodes have been widely applied in electrochemistry because of their advantages over membrane electrodes such as ease and speed of preparation, renewability, stable response, ... See full document

... for determination of the investigated drug in the presence of many possible interferences such as the coformulated additives, common cations, some sugars and amino ...applied using the following equation: ... See full document

... produced using the technology based on chlorination of 2-C to 4Cl2C (the most often used technology in the world) contains usually ...and determination of them in water and waste ... See full document

... multi-walled carbon nanotube (MWCNT) and ionic liquid (IL) in the composition of carbon paste electrodes cause improvement in their ...and ionic liquid in ... See full document