Automatic analysis quantitatively measure method and automatic analysis quantitatively measure apparatus

A quantitative measurement and automatic analysis technology, applied in the analysis of materials, thermal excitation analysis, material excitation analysis, etc., can solve the problems of difficult automatic measurement, unrealistic coil length, etc., and achieve the effect of excellent mixed liquid decomposition performance

Inactive Publication Date: 2009-12-02
BLTEC KOREA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the above-mentioned conventional analysis equipment needs to heat the coil in a high-temperature and high-pressure environment when performing a reaction using a reaction coil. Therefore, it is difficult to realize automatic measurement without unmanned operation because it must be monitored by a worker just in case.
[0009] For this reason, it is conceivable to use a long coil and to react over a long period of time under heating and pressurization conditions that can realize unmanned automatic measurement, but the coil length required to achieve the above situation is simply not practical

Method used

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  • Automatic analysis quantitatively measure method and automatic analysis quantitatively measure apparatus
  • Automatic analysis quantitatively measure method and automatic analysis quantitatively measure apparatus
  • Automatic analysis quantitatively measure method and automatic analysis quantitatively measure apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Prepare automatic analysis and quantitative measurement equipment. This equipment has a quartz tube with an inner diameter of 2mm and a length of 4m wound into a coil shape, a UV lamp is installed in the center of the coil, and a heating ring is wound around the quartz coil to heat the reaction set to 40-100°C. Tube.

[0045] Dissolve 40g of potassium peroxodisulfate and 4g of sodium hydroxide in 1000ml of pure water as a reagent, and dissolve 100ml of sulfuric acid in 1000ml of pure water as another reagent.

[0046] Dissolve 0.5 g of tripolyphosphoric acid in 1000 ml of pure water and use it as a sample.

[0047] As shown in Table 1, the concentration of the aqueous solution of tripolyphosphoric acid as a sample was measured under the conditions of no heating, heating to 70°C, and heating to 80°C without stopping the mixed solution in the reaction manifold, and staying for 5 to 30 minutes. The results are shown in Table 1.

[0048] Table 1

[0049]

[0050] As c...

Embodiment 2

[0052] Various compounds shown in Table 2 were prepared as samples, and analyzed using the same reagents and reaction manifolds as in Example 1 above. Under the heating condition of 80° C., a test was carried out in the case where the reaction manifold was stopped for 20 minutes. The results are shown in Table 2.

[0053] Table 2

[0054] compound

Invention (mg / l)

Manual analysis (mg / l)

tripolyphosphate

0.95

0.99

pyrophosphate

1.0

1.0

ATP (adenosine triphosphate)

1.0

1.0

[0055] As can be seen from Table 2, excellent recoveries were achieved for all compounds in the table.

[0056] Industrialization prospect

[0057] The invention can be used for water quality management of waterways, seawater, rivers, lakes, ponds and the like.

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Abstract

The invention relates to a total nitrogen content and a total phosphorus total content automatic analysis quantitatively measure apparatus and an automatic analysis quantitatively measure method, wherein the method adopts continuous streaming analytical method, which comprises the following procedures: separate a sample (S) by using air (A); inject the separated sample and a reagent (B,C) into a tube (10) together continuously for quantity determination and mixture; after analysis of the obtained mixed liquor in a reaction collecting tube (4), analyze in usual way by a detector (5), and sample the sample (S) at a certain time interval to supply to the tube (10); in the reaction collecting tube (4), the mixed liquor is remained for 10-30 min, heat and decompose the mixed liquor under the temperature from 80 to 90 DEG while irradiating UV; analyze the mixed liquor that generated repeatedly at a certain time interval so as to quantitatively measure total nitrogen content and total phosphorus total content of a sampling position.

Description

technical field [0001] The invention relates to an automatic analysis and quantitative measurement device for automatically measuring the concentration of ultra-trace concentration components in a detected object within a long time span by using continuous flow analysis (Continuous Flow Analysis, CFA for short). Background technique [0002] In the past, in order to measure the total concentration of nitrogen and phosphorus contained in seawater or wastewater, etc., analysis equipment using the principle of continuous flow analysis has been used. [0003] The measurement method adopted by the above-mentioned analysis equipment is to continuously introduce samples into the tube at a certain flow rate, and regularly inject air or inert gas into the tube to separate the liquid with bubbles, and then inject samples and required reagents sequentially. The coil or the reaction coil reacts, and the reactant produced is measured by a detection instrument such as a spectrophotometer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00G01N21/31G01N1/44G01N21/64G01N21/72
CPCG01N31/22G01N33/18G01N35/10G01N2035/00346
Inventor 川本和信政木一央朴贤根安正傧
Owner BLTEC KOREA
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