RU95107034A - Sensor determining concentration of ammonia in liquid and gas media
- Google Patents
Sensor determining concentration of ammonia in liquid and gas media
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Publication number
RU95107034A
RU95107034ARU95107034/25ARU95107034ARU95107034ARU 95107034 ARU95107034 ARU 95107034ARU 95107034/25 ARU95107034/25 ARU 95107034/25ARU 95107034 ARU95107034 ARU 95107034ARU 95107034 ARU95107034 ARU 95107034A
Санкт-Петербургский государственный технологический институт (технический университет)
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Priority to RU95107034ApriorityCriticalpatent/RU2085927C1/en
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Publication of RU2085927C1publicationCriticalpatent/RU2085927C1/en
FIELD: measurement technology, chemical and medico-biological analyzers testing concentration of ammonia in liquid and gas media. SUBSTANCE: sensor includes cell for preparation of sample and cell with Hp measurement electrode, comparison electrode, moving device and bubbler connected to cell for preparation of sample. Invention is aimed at improvement of design of sensor determining concentration of ammonia in liquid and gas media. It provides for expanded range of determination of ammonia, for decreased inertness and improved authenticity of determination of concentration of ammonia in gas atmospheres with various humidity and in liquid media carrying organic substances. EFFECT: improved authenticity of determination of ammonia.
Claims (1)
Изобретение относится к измерительной технике и может найти применение в химических и медико-биологических анализаторах для контроля концентрации аммиака в жидких и газовых средах. Изобретение направлено на усовершенствование конструкции датчика для определения концентрации аммиака в жидких и газовых средах. При этом расширен диапазон определения аммиака, снижена инерционность и обеспечена достоверность определения концентрации аммиака в газовых средах с различной влажностью и в жидких средах, содержащих органические вещества. Датчик содержит ячейку пробоподготовки и измерительную ячейку с рН-измерительным электродом, электродом сравнения, перемешивающим устройством и барботирующим устройством, соединенным с ячейкой пробоподготовки.The invention relates to measuring technique and can find application in chemical and biomedical analyzers for monitoring the concentration of ammonia in liquid and gas environments. The invention is aimed at improving the design of the sensor to determine the concentration of ammonia in liquid and gas environments. At the same time, the range of determination of ammonia is expanded, the inertia is reduced, and the reliability of determining the concentration of ammonia in gas media with different humidity and in liquid media containing organic substances is ensured. The sensor comprises a sample preparation cell and a measuring cell with a pH measuring electrode, a reference electrode, a mixing device, and a sparging device connected to the sample preparation cell.
RU95107034A1995-05-121995-05-12Transducer for measuring ammonia concentration in liquid and gaseous media
RU2085927C1
(en)
Method for the determination of biological and chemical compounds by measuring changes in the electrical properties of immobilized cells or cell components (bioelectric recognition assay)