Portable multifunctional sample treating instrument for environment detection

A technology for sample processing and environmental detection, applied in the field of environmental detection, can solve the problems of cumbersome pre-processing steps, inability to meet the needs of analysis, etc.

Inactive Publication Date: 2017-10-31
上海绿帝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For environmental samples with complex composition, cumbersome pretreatment steps obviously cannot meet the analysis needs

Method used

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  • Portable multifunctional sample treating instrument for environment detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] please see figure 1

[0016] Use the gas guide hose 17 to connect the gas collection pump 16, the flow meter 14, the double hole cover of the gas washing pipe 15, the double hole cover of the reaction tube 8, the one-way choke valve 7 and 18 through the plastic adapter, and the time relay 3 , LED lighting beads 9 are installed and fixed in the upper closed space of the concave instrument shell 1 built with hard plastic sheet material, so that the flowmeter knob 13 and the flowmeter 14 panel are exposed in the groove of the instrument shell 1. Reset button 2, pause button 4, power switch 20, lighting button 19, charging socket 5 are installed on the top panel of instrument shell 1, and its circuit connection line is placed in the top closed space of concave instrument shell 1. The gas guiding hose 6 is led out from the upper cover hole of the reaction tube 8 to 1~2cm on the panel of the instrument shell 1. The lithium battery pack 11 is installed and fixed in the close...

Embodiment 2

[0025] Embodiment 2: the operating method of the device designed and installed according to Embodiment 1

[0026]When used for air sampling, first press the reset button 2 and the pause button 4 to set the sampling time from 0 to 60 minutes, add 3 to 5ml of absorption liquid into the absorption tube 21, and insert it into the 6-hole groove of the air guide hose, and then insert it into the air washing tube 15 Add 3~5ml of conversion agent, install the gas washing pipe 15 and the reaction pipe 8 in place respectively; turn on the power switch 20, the gas extraction pump 16 starts to work, adjust the flow meter knob 13, and control the flow meter 14 to keep the flow rate at 0.1~0.5L / min. Cover the groove with a shading cover 25, so that the gas washing pipe 15 and the reaction pipe 8 are protected from light, and the air enters the instrument through the air inlet holes 26 and 10 until the absorption pipe 21, and the gaseous substance to be measured is trapped by the absorption l...

Embodiment 3

[0027] Example 3: Indoor formaldehyde sampling and detection

[0028] Install the instrument according to the method described in Example 1, place it in a living room newly decorated for a week in a resident family, press the reset button 2 and the pause button 4 to set the air sampling time for 20 minutes. Take 5ml of 0.005% phenol reagent solution in the absorption tube 21, insert the 6-hole groove of the gas guide hose, install the dry gas washing tube 15 and the reaction tube 8 in place, turn on the power switch 20, adjust the flow meter knob 13, and control the flow meter 14 The air flow rate is 0.25L / min, and the hood 25 is covered. When the time relay 3 reaches the set time of 20 minutes, the gas extraction pump 16 stops automatically. Remove the absorption tube, pour the absorption liquid into a 10ml glass test tube, add 4mg of ferric ammonium sulfate solid, shake well to dissolve, let it stand for 15 minutes, transfer it to a colorimetric cell, and measure it with a ...

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Abstract

The invention relates to a portable multifunctional sample processing instrument for environmental detection. Air and water samples are used as processing objects. , Carrier gas stripping and trapping absorption process, direct detection of the absorption liquid can be used for quantitative analysis. The instrument is composed of a gas passage and a control circuit, which work together. The gas passage is mainly composed of a gas extraction pump, a flow meter, a gas washing pipe, a reaction pipe and an absorption pipe, while the control circuit is mainly composed of a lithium power supply, a time relay, a lighting lamp, and a control Buttons and the like are connected by conductive wires. The instrument can be used as an air sampler for the sampling and absorption of formaldehyde, ammonia, hydrogen sulfide, hydrogen cyanide, volatile phenol, sulfur dioxide, nitrogen oxides, mercury and other gaseous substances in the air, and can also be used for water, food, etc. Extraction and enrichment treatment of mercury, arsenic, antimony, cyanide, sulfide and other substances in various media. The instrument structure is ingeniously designed, small in size, light in weight, easy to operate and efficient. It adopts DC power supply and can be carried around, especially suitable for field and field use.

Description

technical field [0001] The invention relates to a portable sample processing device for air and water quality environment detection, which belongs to the field of environment detection. Background technique [0002] In recent years, my country's air, water, and soil pollution problems have become increasingly prominent, causing ecological security and people's health problems to become more and more serious. Many regions in North China have been shrouded in smog for a long time. Toxic exhaust gas emissions from chemical plants have caused disputes and social stability problems. Heavy metal wastewater has polluted rivers, groundwater, soil and crops. Explosions in Tianjin Port hazardous chemical warehouses have caused cyanide leakage. Automobile exhaust has caused urban lead and organic pollution. Pollution, formaldehyde and benzene pollution caused by interior decoration, etc. The expansion of air and water pollution has seriously affected the human environment. [0003] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 郜子涵郜子蕙其他发明人请求不公开姓名
Owner 上海绿帝环保科技有限公司
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