Oxygen detectors

Numata, M., Funazaki, N., Ito, S., Asano, Y., and Yano, Y., Flow injection analysis for hypoxanthine in meat with dissolved oxygen detector and enzyme reactor, Talanta, 43,2053,1996. 

Girotti, AW and Korytowski, W, 2000. Cholesterol as a singlet oxygen detector in biological systems. Methods Enzymol 319, 85-100. 

We focus on luminescence quenching based sensors, but many of the principles are generic. Quenching-based oxygen detectors are probably the most mature. In homogeneous media with only a single component exponential decay the intensity and lifetime forms of the Stern-Volmer equations are ... 

Emission lines Molecular oxygen Detectors Impurities... 

NBS s involvment in SRM s for gas transmission studies arose out of activities within ASTM Committees D-20 (Plastics) and F-2 (Flexible Barrier Materials) that were aimed at standardizing a new instrumental method employing a coulometric oxygen detector for the measurement of oxygen gas transmission rates in materials used for various kinds of packaging (4 ). A subsequent reevaluation of the precision data for the classical manometric and volumetric methods (5) for gas transmission measurements showed that there are serious problems with the reproducibility and repeatability these methods. The use of SRM 1470 to verify the calibration is currently being written into ASTM standards D-3985 and D-1434. 

Oxygen Detectors Ozone Detectors Oxygen handling devices Oxygen fired incinerators Ozone generators... 

Solomon IC. 2000. Excitation of phrenic and sympathetic output during acute hypoxia Contribution of medullary oxygen detectors. Respir Physiol 121 101-117. 

Figure 2 shows the cube with its electrodes, the reservoir with the Pt pellet, and the newly developed oxygen detector (see section 3.). The emitter was a W layer C VDed from WClg, the collector polycrystalline Mo, the spacing 0.6mm. Cesium could be distilled in measurable amounts into the reservoir. 

As seen in section 2.3, a special "oxygen detector" was added to the research converters. It consisted of a simple W filament (length 1cm, diameter 0.15mm) directly heated, acting as the emitter, surrounded by a cylindrical collector and guard ring. In order to minimize the effect... 

A circulation vapor source similar to the DECOR source previously studied was placed inside a cube converter attached to the TOFMS as explained above. This cube also featured an oxygen detector to get independent oxygen pressure measurements. 

Low oxygen detectors Warn of accidental release of inert gas Do not warn of fire directly Indoors—especially in confined spaces... 

Areas that could be flooded with nitrogen, carbon dioxide, or halon-like materials should have oxygen detectors installed. Their use is particularly important in electrical switch gear rooms because inert gases are used to suppress fires. It is vital to know if the inert gas is accidentally leaking into the confined space. 

Even in the safe operation conditions, contingency fire extinguishing systan is still needed in the biomass drying when the drying temperature is over 200°C. A simple method is to install water spay system, which is triggered by temperature sensor, smoke detector, or oxygen detector. 

Monitoring equipment appropriate to the hazards present shall be available. This may include organic vapor detectors of various types, combustible gas detectors, oxygen detectors, detector tubes and pumps, and specialized detectors such as mercury detectors. 

Sudoh, M., Y. Uda, H. KomatSubara, and M. Katsumata. 1995. Comparison between output linearities of oxygen detector and hydrogen peroxide detector for amperometric glucose sensors. 7 Chem Eng Japan 28 816-822. 

Modification of a Calorimetric Oxygen Detector for Use with Non-Equilibrium Hydrogen (1) 164... 

The limiting current obtained at a membrane-covered amperometric device is a function of time, reaching in due course a steady-state value. The current-time transient cannot be described by a single equation, because different transport mechanisms operate during this time interval. For a typical membrane-covered amperometric oxygen detector with an electro-... 

FIGURE 2.15 Oxygen detector using a stabilized zirconia electrolyte. " To detect oxygen, gas to be measured is passed through heated fuel cell. Voltage generated by cell is displayed on the voltmeter. 

Equipment. The method for measurement of gas permeation in a constant volume-variable pressure paratus has been previously described (i). For this study, a similar system was modified to include an in-system oxygen detector (see Figure 2). 

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