Bayer Aktiengesellschaft

Schneider-sanchez Ges.m.b.h.

Kurt Schreckling

Wolf-Jurgen Becker

Jacques Deprez

Eckard Drope

Wolfram Breuer

Karl-Heinz Kaufmann

Small gas turbine

An apparatus for checking gas analysis devices in respect of their sensitivity and their response and regeneration behaviour with respect to time, wherein a reproducible quantity of the measurement component is produced at a predetermined production rate, for a period of time which is guided entirely or at a constant proportion as a concentration pulse to the measurement element of the gas analysis device. For the production of the measurement component a chemical or electro-chemical reaction or even a thermal reaction is used. The time interval can then be conveniently controlled. A decisive advantage with toxic measurement components is that the gas production takes place in all cases for only a short time during the test procedure.

Apparatus for checking gas analysis devices

A method for checking gas analysis devices in respect of their sensitivity and their response and regeneration behaviour with respect to time, wherein a reproducible quantity of the measurement component is produced at a predetermined production rate, for a period of time which is guided entirely or at a constant proportion as a concentration pulse to the measurement element of the gas analysis device. For the production of the measurement component a chemical or electro-chemical reaction or even a thermal reaction is used. The time interval can then be conveniently controlled. A decisive advantage with toxic measurement components is that the gas production takes place in all cases for only a short time during the test procedure.

Method for checking gas analysis devices

In a process for determining the total mercury content in samples of effluent water, the sample is collected on a sample collector where it is evaporated at 1000.degree. C before it is decomposed in a pyrolysis zone at 1000.degree. to 1200.degree. C. The mercury in the liquid sample is thereby expelled as vapor and together with carrier gas it is conducted over a metal sheet which absorbs the mercury and concentrates it. The concentrated mercury is then expelled by heating the metal and transferred by the carrier gas into a mercury absorption photometer where it is determined quantitatively.

Process for determining traces of mercury in liquids

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Leverkusen, Germany

Kurt Schreckling