Shipborne navigational water acidification multi-parameter observer

Abstract

The invention discloses a shipborne navigational water acidification multi-parameter observer, relating to the technical field of marine monitoring. liquid outlets of a seawater filter and a standardliquid storage tank are connected with a liquid inlet of the three-way valve; a liquid outlet of the three-way valve is connected with a liquid inlet of a liquid distributor, two liquid outlets of theliquid distributor are connected with liquid inlets of a first peristaltic pump and a second peristaltic pump respectively, a liquid outlet of the first peristaltic pump is connected with a liquid inlet of a flow cell, and a liquid outlet of a second peristaltic pump is connected with a liquid inlet of an DIC detector; a water purification machine is connected with a carrier liquid inlet of the DIC detector through a constant flow pump; a pH probe extends into the flow cell; and a data acquisition and control chip is used for controlling the automatic sample injection and detection of the instrument. The observer can realize high-precision automatic detection of seawater acidification parameters, can perform automatic measurement of standard samples and adjustment and calibration of instruments, requires a small amount of samples, does not need additional reagent consumption, and is particularly suitable for long-time continuous automatic observation of shipborne navigation water pH and DIC or field long-term unattended online observation.

Description

technical field [0001] The invention relates to the technical field of ocean monitoring, in particular to a multi-parameter observer for seawater acidification on board a ship. Background technique [0002] The pH and DIC in seawater are important parameters to characterize the acidification of seawater. They have important indicating significance in the study of ocean acidification and have become the basic parameters of ocean acidification research. Accurate, fast, convenient and high temporal and spatial resolution to measure the temporal and spatial distribution and variability of seawater pH and DIC concentration is the key to understanding ocean acidification and its impact on marine biological activities, and is an indispensable key parameter for the study of marine biogeochemical processes. Plays an important role in global marine ecosystem research. [0003] Seawater acidification is mainly caused by CO 2 Dissolved inorganic carbon (DIC) in seawater is therefore a...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems in the prior art that the seawater acidification observation parameters are single, multi-parameter synchronous observation cannot be performed, the analysis method is complicated, and a large amount of manpower and material resources are consumed, and a multi-parameter observer for seawater acidification on board is provided, which can Long-term automatic observation of acidification parameters such as pH and DIC of seawater

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