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hitachi Insulation Gas Components Detection

hitachi Insulation Gas Components Detection

3. Principle and System Configuration ... - Hitachi High-TechPumping Unitsample-injection UnitSeparation UnitDetection UnitData-Processing UnitIt is necessary to pump the eluent at a constant flow rate and pressure. Conventional, analytical HPLC pumps are the most common type, but semi-micro and a preparative pumpsare also used depending on the range of the eluent flow rate required. Figure 2 illustrates the merits of gradient analysis. If eluent A is used, the components eluted earlier are clearly separated, but the components eluted later show broad peaks or may not elute from the column. In contrast, if eluent B is used, the former are insufficiently sep…See more on hitachi-hightech Principle and Feature of Various Detection Methods (1 ...Fortunately, many components containing benzene rings can absorb light at this wavelength, which enabled many samples to be analyzed with this fixed wavelength. Hence, the detection wavelength of 254 nm is sometimes used, even now. However, most current UV detectors employ a D 2 lamp as the light source, for which the wavelength can be changed ...

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  • Explosive-trace Detection System Using Mass - Hitachi

    2015-3-31The detection process is split into three main steps: sample wiping, vaporization, and analysis. Analysis is completed in about 10 seconds. developed detector is configured so that any impurity components that inhibit the ionization process are immediately removed. This means that the explosive constituents in the sample gas can be ionized more

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  • 7. Principle and Feature of Various Detection Methods (1

    Fortunately, many components containing benzene rings can absorb light at this wavelength, which enabled many samples to be analyzed with this fixed wavelength. Hence, the detection wavelength of 254 nm is sometimes used, even now. However, most current UV detectors employ a D 2 lamp as the light source, for which the wavelength can be changed

    Get Price
  • Fire and gas detection systems - Products - Productweb en

    Fire and gas detection systems. We provide interactive fire and gas detection systems for any application on land, at sea, and in the petrochemical oil, and gas industry. Our fire and gas detection systems are developed for worldwide standards and regulations,

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