Electrochemical Measurements of Blood Alcohol Levels

Bay, H. W.; Blurton, K. F.; Lieb, Hans; Oswin, H. G.

doi:10.1038/240052a0

Cited by 29 publications

(28 citation statements)

References 5 publications

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“…26 This new design was used to detect various toxic gases, such as ethanol, CO, H 2 S, NO 2 , and NO. The sample (an electrochemically oxidizable or reducable species) enters the cell through porous electrodes similar to those used in a fuel cell (see Figure 6); 34 hence, the device has been incorrectly called a fuel-cell sensor, although its purpose is not the conversion of chemical to electrical energy.…”

Section: Diffusion Electrodesmentioning

confidence: 99%

Amperometric Gas SensorsA Review

2008

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Section: Diffusion Electrodesmentioning

confidence: 99%

Amperometric Gas SensorsA Review

2008

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“…The development of gas-diffusion electrodes greatly promotes amperometric sensing techniques based on back-side metallized porous membranes where the real surface area of the electrode is significantly enlarged [61]. This not only makes the mass transfer of analyte faster, resulting in shorter response times and higher sensitivity [60], but also allows species with relatively poor electro-activity to permeate and produce measurable currents [65].…”

Section: Gas Sensors Based On Membrane Diffusionmentioning

confidence: 99%

Gas sensors based on membrane diffusion for environmental monitoring

Huang

et al. 2017

Sensors and Actuators B: Chemical

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Over the last few decades, gas membrane diffusion has been applied to elaborate chemical analyses, leading to the development of a series of gas sensing techniques for environmental monitoring. This work reviews the gas sensors that incorporate the gas membrane diffusion mechanism with either electrochemical or optical transducers, and concludes the theoretical relationship between the detection signal and the mass transfer parameters across the membrane, such as membrane thickness, gas diffusion coefficient and driving force. It also envisages that, with the availability of modern electronic and computing technology, the in-situ membrane diffusion rate of a target species is proportional to its real-time concentration in the sample and can be readily measured. Such a measuring principle is promising in developing the next generation of gas sensors based on membrane diffusion to achieve real-time and continuous monitoring of important trace gases (e.g. CO 2 , SO 2 , NH 3) in the natural environment (water, soil and air).

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“…These methods (techniques) can be classified as chemical methods [4], spectrophotometric and colorimetrie methods [5][6][7], conductivity measurements [8], infrared spectrophotometry [9][10][11][12], eoulometry [13], voltametric methods [14], thermometric methods [ [24][25][26] (conductance measurements), solid electrolyte sensors [27][28][29] (electromotive force measurements), zink oxide single crystal sensors [30] (the change in conductivity caused by CO adsorption is measured), proton-conductor sensors [31], and metal oxide semiconductor sensors [32,33]. Although most of these methods are very powerful ones and can successfully be used for the solution of given problems, their direct application for the continuous monitoring of CO formed in thermoanalytical processes is rather limited due to various reasons (non-linear response, low sensitivity, lack of selectivity, etc.…”

Section: ] Tg-ftir [2]) or Indirect (Thermogas Titrimetry Tgt [3]mentioning

confidence: 99%

Continuous determination of carbon monoxide evolved during thermal decomposition reactions

Kristóf

Inczédy

Mohácsi

1990

Journal of Thermal Analysis

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A device suitable for the continuous detection of carbon monoxide evolved during thermal decomposition processes is described. The detector can be connected directly to thermoanalytieal equipment of controlled gas atmosphere. Carbon monoxide collected by the carrier gas is passed through the device containing hopcalite catalyst. In the presence of oxygen carbon monoxide is converted to carbon dioxide in the cell and the temperature change caused by the heat of reaction is measured. According to experience, the change of temperature is linearly proportional to the amount of carbon monoxide released.The signal curve of the detector can be compared to the simultaneously recorded thermoanalytieal curves and used to determine the step in which carbon monoxide was released.The detector is not completely selective to carbon monoxide, but in most eases the interferring gases can be removed from the carrier gas by various packings placed between the detector and the thermoanalytical equipment. The use of evolved gas analysis (EGA) techniques in thermal analysis

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Electrochemical Measurements of Blood Alcohol Levels

Cited by 29 publications

References 5 publications

Amperometric Gas SensorsA Review

Amperometric Gas SensorsA Review

Gas sensors based on membrane diffusion for environmental monitoring

Continuous determination of carbon monoxide evolved during thermal decomposition reactions

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