[PDF] Top 20 Inteligencia emocional y conducta social en estudiantes del quinto año de secundaria de una institución educativa, Trujillo – 2014

... the determination of OCl - ion in the investigated ...for rapid, simple and accurate determination of OCl - ion in water and dairy ...Net differential voltammograms for Al 2 O 3 ... See full document

... at carbon paste electrode was investigated by cyclic and differential pulse voltammetry, and on the basis of these voltammetric studies an analytical procedure for the ... See full document

... on carbon paste (CP) electrode with ferrocene /gold nanoparticles GNFMCPE , is introduced for selective determination of morphine (MO) in presence of interference compounds as ascorbic acid ... See full document

... the carbon electrodes, the carbon paste electrode (CPE) has a particular ...other carbon electrodes. The development of carbon paste electrodes in electrochemistry and ... See full document

... multi-walled carbon nanotubes, coupled with differential pulse anodic stripping voltammetry was employed for the simultaneous extraction and determination of lead, cadmium and copper in ... See full document

... simple, rapid and sensitive electrochemical method for simultaneous determination of acetaminophen and atenolol was developed in Britton-Robinson buffer solution on a gold nanoparticles carbon ... See full document

... glassy carbon electrode modified with a multiwalled car- bon nanotube/chitosan composite has been utilized as a new sensor for the simultaneous determination of aceta- minophen and mefenamic ... See full document

... This modified electrode exhibited high electrocatalytic activities towards the oxidation of CIP and ENRO by significantly increasing their oxidation over potentials and enhancing the peak ...cyclic ... See full document

... As our results showed, the PTFMGCE possessed a higher active surface area and excellent electrocatalytic activity for AA, DA, and UA. The difference in the oxidation peak potentials for AA- DA and DA-UA were 0.21 and ... See full document

... flowable paste, placed in a glass tube with a diameter of approximately 3 mm, and pressed ...the electrode was smoothed and polished with a piece of smooth paper for subsequent ... See full document

... of modified electrodes were undertake simply because electrochemists were curious about new species attached to electrode surface behave compared to these species in solution ...multi-wall carbon ... See full document

... determined by nitrogen gas adsorption–desorption isotherms at 77 K using Quadra Sorb Station 4 with outgas time of 4.0 hours and outgas temperature of 250 ºC. The specific surface area was evaluated by the multipoint-BET ... See full document

... using differential pulse voltammetry (DPV), the oxidation of thiocyanate and oxalate were occurred at potentials of ...simultaneous determination of these anions with high sensitivity without ... See full document

... The first ablation laser, which irradiates the surface of a sample, was a Nd:YAG laser operating at fourth harmonic frequency 266 nm (New Wave, UP-266 MACRO) with the energy of 10 mJ per pulse. The laser system ... See full document

... glassy carbon working electrode (GCE) [surface area () 7 mm; disc diameter (R) 2 mm, Metrohm], a platinum wire auxiliary electrode and Ag/AgCl (KCl 3 M, Metrohm) reference ... See full document

... using Ion Selective Electrodes (ISE) are very attractive strategy as they allow direct determination of ion concentration in liquid samples and provide various benefits including high selectivity, ... See full document

... the differential pulse voltammetry has a much higher current sensitivity and better resolution than cyclic voltammetry, it was used in the determination of vanillin concentration and ... See full document

... for differential pulse voltammetric measurements such as pulse amplitude, pulse time and scan rate were ...the pulse time in the range of 10-40 ms and decreased beyond, so the most ... See full document

... its determination in pharmaceutical formulations and biological ...sepeolite modified carbon paste electrode (SMCPE) exhibited a significant increase in sensitivity and selectivity for ... See full document

... samples that are prepared by adding different amounts of HQ, CC and RC in artificial wastewater, and the results are listed in Table. 2. It can be seen that satisfied results are obtained with the recovery rate being ... See full document