摘要:
A sample plate, and portable apparatus comprising a sample plate and a base portion, which sample plate comprises a sample inlet, a reaction zone, an analysis zone, and at least one separation zone, the sample plate being adapted to allow; (a) a sample fluid to be fed to the sample plate through the inlet to the reaction zone or optionally to a separation zone, which separation zone separates the sample fluid into two or more fractions at least one of which is fed to the reaction zone; (b) a reactant to be fed to the reaction zone; (c) the reaction zone to be maintained under conditions that enable reaction to occur between the reactant and the sample fluid or fraction thereof to produce a product fluid; and (d) transfer of the product fluid to the analysis zone or optionally to a separation zone in which the product fluid is separated into two or more fractions, at least one of which is transferred to the analysis zone.
摘要:
A method and apparatus for interfacing a plurality of gas measurement systems (8, 28, 60), including a mainstream and a sidestream gas measurement system, to a host system (74) via an interface unit (64). The present invention also pertains to a sidestream gas measurement system (80) that outputs signals emulating the signals output by a mainstream gas measurement system or portion thereof, so that the sidestream gas measurement system can seamlessly communicate with a host system configured to communicate only a mainstream gas measurement system or a portion thereof.
摘要:
Eine am Eingang des Reaktors (1) entnommene Probe wird einer ersten Meßküvette (5) eines Einstrahl-NDIR-Gasanalysators (6) zugeführt, eine gleichzeitig am Ausgang des Reaktors (1) entnommene Probe einer dahinterliegenden zweiten Meßküvette (5′) und das Summen-Meßsignal abgespeichert. Danach wird eine der Meßküvetten gespült und aus dem Meßsignal der anderen Küvette die Konzentration der Komponente in der betreffenden Probe errechnet. Durch Differenzbildung mit dem abgespeicherten Summen-Meßwert kann auch die Konzentration in der einen Küvette errechnet werden. Die Erfindung wird eingesetzt bei Abgasmeßgeräten.
摘要:
A sample plate, portable analysis apparatus and method of analysing sulphur and/or nitrogen compounds in a sample fluid, the method comprising feeding a sample fluid to a sample plate having a sample inlet, a reaction zone, an analysis zone, and at least one separation zone, the sample plate being adapted to allow; (a) a sample fluid to be fed to the sample plate through the inlet to the reaction zone or optionally to a separation zone, which separation zone separates the sample fluid into two or more fractions at least one of which is fed to the reaction zone; (b) a reactant to be fed to the reaction zone; (c) the reaction zone to be maintained under conditions that enable reaction to occur between the reactant and the sample fluid or fraction thereof to produce a product fluid; and (d) transfer of the product fluid to the analysis zone or optionally to a separation zone in which the product fluid is separated into two or more fractions, at least one of which is transferred to the analysis zone.
摘要:
Device for measuring fibre properties in a flowing suspension. The device includes a measuring cell (10) in which there is a measuring field (48) defined between two limiting surfaces and a means (56) of adjusting the width of the measuring field. The limiting surfaces have two opposing, transparent sections (60, 62) that allow illumination through the flowing suspension passing through and measurement by optical means. In addition, the measuring cell (10) has an inlet opening (38) intended for the whole of the suspension flow and an outlet opening (40) intended for the whole of the suspension flow.
摘要:
Device for measuring fibre properties in a flowing suspension. The device includes a measuring cell (10) in which there is a measuring field (48) defined between two limiting surfaces and a means (56) of adjusting the width of the measuring field. The limiting surfaces have two opposing, transparent sections (60, 62) that allow illumination through the flowing suspension passing through and measurement by optical means. In addition, the measuring cell (10) has an inlet opening (38) intended for the whole of the suspension flow and an outlet opening (40) intended for the whole of the suspension flow.
摘要:
PCT No. PCT/GB92/00477 Sec. 371 Date Oct. 20, 1993 Sec. 102(e) Date Oct. 20, 1993 PCT Filed Mar. 18, 1992 PCT Pub. No. WO92/16828 PCT Pub. Date Oct. 1, 1992.An ultra-violet absorbence-based monitor for on-line monitoring of organic pollution in water at on-site locations measure the reduction in UV light passed through a sample and also makes measurements to provide indications of the amounts of visible light absorbed by, and scattered by, the samples respectively. The amount of organic matter is determined from the measured reduction in UV light by a calculation in which the results of the other measurements are used for compensation purposes. The sampling apparatus comprises a buoyant sampling head with an inlet port submerged beneath the water surface.
摘要:
The apparatus for field or process colorimetric analyses of water or other samples with a discontinuous on-line system comprises: an open colorimetric cell (9) with means of charging the sample from the base and discharge of the excess sample over the spill rim. The cell is combined with means for producing a precise amount of the sample, in particular by the use of a magnetically driven two-speed stirrer (26) which at a first speed produces the precise amount by discharging through forced overflow and at a second speed stirs the sample treated with appropriate reagents introduced through suitable metering means (30, 32, 34, 36).