potentiostat


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potentiostat

[pə′ten·chē·ə‚stat]
(engineering)
An automatic laboratory instrument that controls the potential of a working electrode to within certain limits during coulometric (electrochemical reaction) titrations.
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Contract award notice: Potentiostat - galvanostat with accessories (czechia-ostrava: Measuring instruments)
Gamry Instruments is pleased to attend this event and will be exhibiting electrochemical instrumentation with a focus on the Reference 3000 and 3000AE potentiostats. The Reference 3000 is a high-current, high-performance potentiostat well suited for researchers studying batteries, fuel cells or supercapacitors as well as general physical electrochemistry experiments requiring high voltages and high currents.
The researchers also designed an inexpensive handheld device called a potentiostat, which is easily plugged into the SPED to automate the diagnostic tests so that they can be performed by untrained users.
"Our experimental setup consists of a paper device with eight electrochemical biosensors--for handy, one-time, disposable use--and a custom-made, handheld electrochemical reader, or potentiostat, to keep costs as low as possible," explained Xinyu Liu, an assistant professor in the Department of Mechanical Engineering at McGill University.
In the experiments, insulated percutaneous wires connect to an externally mounted, miniaturized wireless potentiostat for data transmission.
We used different length alkanethiols (C8H17SH, C11H23SH, C14H29SH, C16H31SH, C18H37SH) to build SAM on gold electrode, and tested the capacitance of each one using potentiostat EIS.
The MWCNT sensor element, gas test cell, ethylene generating chamber, potentiostat circuit, and data acquisition systems are developed by us and the reference ethylene sensor (amperometric) [C.sub.2][H.sub.4]/C-200 is bought from M/s Membrapore, Switzerland.
Eight tenders for the supply of (a) a shredding and sterilizing instrument for medical waste, (b) a near infra red grain analyzer, (c) a microwave reaction instrument, (d) a potentiostat galvanostat instrument, (e) three centrifuge instruments, (f) a muffle furnace of up to 1,800 C, (g) a similar furnace but up to 1,600 C, (h) a similar furnace but up to 1,200 C.
Our implementation for the electro analytical measurement includes: the PC-AT- computer, the Lab Jack U12 Data Acquisition Board, the software component: Lab VIEW package, a micro power potentiostat, the electrochemical cell.
ESA Biosciences' BioStat multi-mode potentiostat allows amperometric or potentiometric measurements to be made independently on up to four channels for multiple testing, handling signals of either polarity, employing either 2- or 3- electrode configurations.
The contributors propose a new topology for power control of class-E power amplifiers, an automatic layout generator for I/O cells, digital RF processing techniques for SoC radios, and a low power CMOS potentiostat for bioimplantable applications.
The instrumentation (Figure 7) required includes a waveform generator to produce the sine waves and potentiostat to control the potential.