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Solution agitating method and sample cell using for the method

A stirring method and solution technology, which is applied in the direction of chemical instruments and methods, dissolution, suspension and porous material analysis, etc., can solve the problems of increased blank time and reduced precision

Inactive Publication Date: 2006-06-21
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, when observing the transition phenomenon that occurs immediately after the solution to be measured is mixed with the reagent solution, the blank time of the observation increases
This situation becomes a big problem especially when the reaction speed of the test solution and the reagent solution is fast
[0006] In addition, if the sample cell is taken out of the measurement optical system, the installation of the optical system, etc. will change, so when measuring the change in the optical characteristics of the test solution before and after mixing with the reagent solution, the accuracy will decrease.

Method used

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  • Solution agitating method and sample cell using for the method
  • Solution agitating method and sample cell using for the method
  • Solution agitating method and sample cell using for the method

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Experimental program
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Effect test

Embodiment approach 1

[0034] Below, use figure 1 Embodiments of the present invention will be described in detail.

[0035] figure 1 Among them, the skeleton part 1 of the sample cell of the present invention is composed of a cuboid aluminum container having an open opening at the top. Moreover, glass plates (not shown) as optical windows are embedded at both ends of the optical path, and light can pass through the measured solution while the measured solution is kept. figure 1 It is a figure showing the structure of the sample cell of this invention.

[0036] The distance in the long axis direction of the container, that is, the distance between the optical windows was 5 cm. In addition, the distance in the minor axis direction was 1 cm. The lowermost part of the skeleton part 1 of the sample cell is as figure 2 As shown, the injection port 2 is provided on the side without the optical window. in addition, figure 2 yes figure 1 Top view of skeleton part 1 of the sample cell shown. In es...

Embodiment approach 2

[0060] In this embodiment, the use of the figure 1 The sample cell having the structure shown above is an example of measuring the protein concentration in a test solution using a sulfosalicylic acid reagent solution (reagent obtained by dissolving sodium sulfate in an aqueous 2-hydroxy-5-sulfobenzoic acid solution) as a reagent solution.

[0061] At this time, if the test solution is mixed with the sulfosalicylic acid reagent solution, the protein components in the test solution will coagulate, and the test solution will be completely turbid. Therefore, the protein concentration can be determined by measuring the degree of turbidity, that is, turbidity. . Here, the turbidity is measured as transmitted light intensity, that is, an output signal of the optical sensor 8 . The higher the protein concentration and the higher the turbidity, the smaller the output signal of the light sensor 8 . In the present embodiment, unlike the first embodiment, not only the diffusion state of...

Embodiment approach 3

[0070] In Embodiment 3, the details of using Image 6 Condition of the sample cell shown. in addition, Figure 7 yes Image 6 A schematic top view of the skeleton portion 14 of the sample cell is shown.

[0071] Image 6 Among them, symbols 2, 6, 7, 8, 9, 10, 12 and 13 represent the same as in Embodiment 1 figure 1 Symbols 2, 6, 7, 8, 9, 10, 12 and 13 have the same constituent elements.

[0072] Image 6 The skeleton portion 14 of the sample cell of the present invention shown is the cuboid aluminum container that the top has the opening 15 that is funnel-shaped opening, and the glass plate (not shown) as optical window is embedded in the two ends of optical path, in Light can pass through the test solution while the test solution is kept.

[0073] For example, the distance in the light propagation direction of the container, that is, the distance between the optical windows is 10 mm, and the distance in the direction perpendicular to the light propagation direction is ...

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Abstract

For the purpose of mixing the solution to be measured and the reagent solution without stirring with a stirring rod, we provide a stirring method that stirs by injecting gas into the solution to be measured.

Description

[0001] This application is a divisional application of a PCT application whose application number is CN02800814.6 (the international filing date is March 14, 2002), and the title of the invention is "solution stirring method and sample cell used for the method". technical field [0002] The invention relates to a stirring method of a solution. In particular, the present invention relates to a stirring method for mixing a test solution and a reagent solution to measure the concentration of a specific component in the test solution. Background technique [0003] When calculating the concentration by measuring the optical properties of the test solution, a sample cell having a structure in which light propagates in the held test solution is used. Such a sample cell is made of glass or the like and has a rectangular parallelepiped shape. In addition, a transparent portion is provided on the opposite surface so that light can propagate in the sample to be measured. [0004] Usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F33/40G01N1/36G01N1/38G01N15/06G01N21/03G01N21/59
CPCG01N1/38G01N2001/387Y10T436/25G01N15/075
Inventor 河村达朗龟井明仁
Owner PANASONIC CORP
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