Magnetoelastic alloy films have been used as a working electrode in an electrochemical cell. This material allows magnetic interrogation of electrochemical deposition. This technique was used to monitor the electrochemical deposition of polypyrrole by multisweep (CV) and potentiostatic methods. Since the determination of the mass-sensitive magnetoelastic film's resonance frequency is based on m...

This paper deals with some applications of Virtual Instrumentation to electroanalytical measurements. Virtual Instruments (VIs) are software programmes that simulate the external appearance and functions of a real instrument on the screen of a computer. In this work, programmes have been developed to control the potential of a working electrode (through a suitable potentiostat), acquire the cur...

Minimnya akses terhadap instrumentasi merupakan salah satu menyebabkan terhalangnya pengamatan suatu reaksi kimia. Masalah tersebut utamanya disebabkan karena instrumen sulit didapatkan dengan alasan perlu sarana penunjang yang cukup besar, konsumsi listrik tinggi, perawatan khusus atau dana tidak sedikit. Kegiatan ini bertujuan untuk memberikan pemgetahuan tentang dasar – elektrokimia dan prak...

In this paper, we integrated acetylcholinesterase (AChE) biosensor and detection system to fabricate pesticides residues portable detection instrument for an on-site use. The AChE biosensor was based on the inhibition of enzyme activity that was monitored by the change of oxidation current of the thiocholine using ordinary three electrodes and an own designed potentiostat. The current signal ge...

Abstract In the present work, a technique to generate pores in Vulcan VCX-72 and VCX-72R commercial coal through Hummers method elaboration of membranes is shown. The product obtained process was cleaned dried, then SEM microscopy which generation observed. Membranes were elaborated using material placed an electrochemical cell set up three electrodes immersed acid solution H2SO4. Autolab® pote...

We used carbon paste electrodes and a standard potentiostat to detect silver ions. The detection limit (3 Signal/Noise ratio) was estimated as 0.5 μM. A standard electrochemical instrument microanalysis of silver(I) ions was suggested. As a working electrode a carbon tip (1 mL) or carbon pencil was used. Limits of detection estimated by dilution of a standard were 1 (carbon tip) or 10 nM (carbo...