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Parallel type acid volatile sulfide generation-absorption device

A technology of volatile sulfides and absorption devices, which is applied in measuring devices, analysis through chemical reactions of materials, color/spectral characteristic measurement, etc., can solve problems such as sample pollution, mercury poisoning, mercury pollution, etc., and achieve detection Effects of low limit, avoidance of mercury poisoning, and avoidance of mercury pollution

Pending Publication Date: 2022-01-11
舟山市海洋环境监测预报中心
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Problems solved by technology

[0007] The problem to be solved by the present invention is that the existing acid volatile sulfide measuring device is very easy to cause sample pollution, and is easy to cause the defects of mercury pollution and mercury poisoning

Method used

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  • Parallel type acid volatile sulfide generation-absorption device
  • Parallel type acid volatile sulfide generation-absorption device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Parallel acid volatile sulfide generation-absorption device, including nitrogen tank 1, nitrogen gas 2, gas trap 3, nitrogen diverter valve 4, curved glass ground-mouth air tube 5, three-necked round bottom flask 6, sediment samples 7. Magnetic stirrer 8, cylindrical separatory funnel 9, hydrochloric acid 10, curved glass suction joint 11, impact absorption bottle 12, zinc acetate solution 13, and high-purity nitrogen 2 is housed in the nitrogen tank 1 for use in Carrier gas, nitrogen tank 1 conduit connected to gas trap 3, used to filter out oxygen, gas trap 3 conduit connected to nitrogen diverter valve 4, used to control nitrogen flow and gas output speed, nitrogen diverter valve 4 conduit connected to bent glass The ground air guide tube 5 is used for gas circulation. The end of the curved glass ground air guide tube 5 is connected to the nit...

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Abstract

The invention discloses a parallel type acid volatile sulfide generation-absorption device, and belongs to the technical field of marine ecological early warning and monitoring. The parallel type acid volatile sulfide generation-absorption device comprises a nitrogen tank, nitrogen, a gas trapping trap, a nitrogen diverter valve, a bent glass ground mouth gas guide pipe, a three-mouth round-bottom flask, a sediment sample, a magnetic stirrer, a cylindrical separating funnel, hydrochloric acid, a bent glass exhaust joint, an impact type absorption bottle and a zinc acetate solution, and is characterized in that the nitrogen tank is filled with high-purity nitrogen, and a nitrogen tank guide pipe is connected with the gas trapping trap; a guide pipe of the gas trapping trap is connected with a nitrogen flow dividing valve, a guide pipe of the nitrogen diverter valve is connected with the bent glass ground mouth gas guide pipe, the tail end of the bent glass ground mouth gas guide pipe is connected with a nitrogen inlet, the nitrogen inlet is formed in a three-mouth round-bottom flask, and the three-mouth round-bottom flask is provided with a nitrogen inlet, a hydrochloric acid adding opening and a sulfide gas outlet. A sediment sample is contained in the three-neck round-bottom flask, and a magnetic stirrer is mounted at the bottom of the three-neck round-bottom flask.

Description

technical field [0001] The invention relates to a parallel-connected acid volatile sulfide generating-absorbing device, belonging to the technical field of marine ecological early warning and monitoring. Background technique [0002] Early warning and monitoring of marine ecology is an inherent need to ensure the comprehensive management and control of marine natural resources. Carrying out early warning and monitoring of marine ecology is of great significance for comprehensively grasping the ecological impact of resource development and utilization, timely warning of marine ecological problems, and promoting marine ecological protection and resource management. [0003] Acid Volatile Sulfides (AVS) refer to sediments that can be extracted by cold acid and converted to H 2 The reduced sulfide released in the form of S is the most active part of the sulfide, which has a decisive influence on the distribution behavior of heavy metals in the sediment between the water body and...

Claims

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Application Information

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IPC IPC(8): G01N1/40G01N21/31G01N21/77
CPCG01N1/4044G01N21/77G01N21/31
Inventor 金敬林蔡丽萍边佳胤李璐璐余健涛王兰戈
Owner 舟山市海洋环境监测预报中心
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