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Any analyte that can be oxidized or reduced is a candidate for amperometric detection. The simplest form of amperometric detection is single-potential, or direct current (DC), amperometry. A voltage (potential) is applied between two electrodes positioned in the column effluent. The measured current changes as an electroactive analyte is ...
Double-pulsed chronoamperometry waveform showing integrated region for charge determination.. In electrochemistry, chronoamperometry is an analytical technique in which the electric potential of the working electrode is stepped and the resulting current from faradaic processes occurring at the electrode (caused by the potential step) is monitored as a function of time.
A microwave power meter is an instrument which measures the electrical power at microwave frequencies typically in the range 100 MHz to 40 GHz.. Usually a microwave power meter will consist of a measuring head which contains the actual power sensing element, connected via a cable to the meter proper, which displays the power reading.
The envelope detector has several drawbacks: The input to the detector must be band-pass filtered around the desired signal, or else the detector will simultaneously demodulate several signals. The filtering can be done with a tunable filter or, more practically, a superheterodyne receiver; It is more susceptible to noise than a product detector
The charged aerosol detector (CAD) is a detector used in conjunction with high-performance liquid chromatography (HPLC) and ultra high-performance liquid chromatography (UHPLC) to measure the amount of chemicals in a sample by creating charged aerosol particles which are detected using an electrometer.
These simulate the outputs of Germanium detectors, plastic scintillators and their PMT's, NaI scintillators and their PMT's and LaBr3/LaCl3 scintillators and their PMT's. The random tail-pulse generators can test for pile-up and count rate effects. The fast tail-pulse generators can simulate the 5 ns FWHM pulses of faster PMT outputs. The ...
By the time it went public in 2007, it had earned its “Amazon of Latin America” moniker, but its annual revenue remained low, crossing $100 million in 2008 and $1 billion in 2017.
The average response time of the bolometer allows convenient measurement of the power of a pulsed source. [ 14 ] In 2020, two groups reported microwave bolometers based on graphene-based materials capable of microwave detection at the single-photon level.