WO2005078417A1 - Procede de criblage d'un effet desodorisant ou procede d'evaluation associe - Google Patents

Procede de criblage d'un effet desodorisant ou procede d'evaluation associe Download PDF

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Publication number
WO2005078417A1
WO2005078417A1 PCT/JP2005/000387 JP2005000387W WO2005078417A1 WO 2005078417 A1 WO2005078417 A1 WO 2005078417A1 JP 2005000387 W JP2005000387 W JP 2005000387W WO 2005078417 A1 WO2005078417 A1 WO 2005078417A1
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WO
WIPO (PCT)
Prior art keywords
test substance
colored gas
screening
substance
container
Prior art date
Application number
PCT/JP2005/000387
Other languages
English (en)
Japanese (ja)
Inventor
Toshihiko Tsuda
Original Assignee
Kobayashi Pharmaceutical Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobayashi Pharmaceutical Co., Ltd. filed Critical Kobayashi Pharmaceutical Co., Ltd.
Publication of WO2005078417A1 publication Critical patent/WO2005078417A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases

Definitions

  • the present invention relates to a method for screening a test substance and a method for visually evaluating the deodorizing effect of the test substance.
  • a first object of the present invention is to provide a method for easily screening a test substance for a test substance having a deodorizing effect in a short time.
  • a second object of the present invention is to provide a method for easily and simply evaluating the deodorant effect of a test substance.
  • the present invention relates to the following method.
  • [0007] Screening of a test substance, comprising a step of placing a test substance in a colored gas atmosphere and selecting the test substance from the test substance using the disappearance of the color in the colored gas atmosphere as an indicator.
  • the method for selecting a test substance is a method for simultaneously selecting a deodorant substance. Screening method.
  • a method for visually evaluating the deodorizing effect of the test substance which comprises placing the test substance in a colored gas atmosphere and measuring a change in color in the colored gas atmosphere.
  • the present invention provides a method for screening a test substance.
  • the screening method is a method for selecting a substance having an adsorption effect (adsorbable substance) from a large number of test substances.
  • the target test substance is placed in a colored gas atmosphere. It can be carried out by selecting an adsorbable substance from the test substance using the disappearance of the color of the colored gas as an index.
  • the presence or absence of the disappearance of the color of the colored gas can also be visually observed.
  • a method in which a photograph of a container is taken with a digital camera and then measured with a color difference meter is also possible.
  • an adsorbable substance is sieved from a large number of test substance groups by visual screening, and then the sieved test substance is subjected to screening using the above-described method, thereby obtaining the test substance.
  • the method of detecting the disappearance of the color of a colored gas for example, by selecting a desired adsorbent substance from among them, it is possible to select and acquire the desired adsorbent substance efficiently, simply, and accurately.
  • the colored gas used in the screening method differs depending on the type of the adsorptive substance to be obtained, but is not particularly limited as long as it is a gas having a color in principle.
  • the colored gas include nitrogen dioxide, fluorine, chlorine, bromine, iodine, and chlorine dioxide.
  • Colored gas can also include tobacco smoke, smoke from factories and incinerators, and exhaust gas from cars, buses and trucks.
  • nitrogen dioxide, chlorine, chlorine dioxide, and the like are colored gases that are suitably used because of their excellent visual effects. More preferably, it is nitrogen dioxide.
  • the colored gas used in the present invention a commercially available gas can be used, or a known gas can be used. It can also be manufactured by a method. For example, nitrogen dioxide can be obtained by reacting copper and nitric acid.
  • the test substance when the colored gas has an odor at the same time as the color, by performing the above-described screening method, the test substance can be selected and, at the same time, a deodorant substance (a substance exhibiting a deodorant effect) is obtained. Can also be sorted out. Therefore, in this case, the screening method of the present invention can be referred to as a screening method for a deodorant substance.
  • Examples of the colored gas having an odor at the same time as the color include nitrogen dioxide, fluorine, chlorine, bromine, iodine, diacid chloride, and the like. , Chlorine, chlorine dioxide and the like, more preferably nitrogen dioxide and the like can be suitably used.
  • Such a screening method of the present invention may be performed under an open condition or under a closed (closed) condition as long as the disappearance of the color of the colored gas can be visually recognized.
  • it is carried out under closed (closed) conditions.
  • closed (closed) condition since the gas does not flow under the colored gas atmosphere, the color disappearance process can be observed more accurately and clearly, and the odor due to the colored gas, coloring, etc. This is because it can prevent ivy from being contaminated.
  • a method using a closed container can be used simply.
  • the closed container is not particularly limited as long as the colored gas contained therein has such a tightness that the colored gas does not flow out of the container or hardly flows out of the container.
  • the material is a material in which the colored gas does not adhere or adsorb to the surface inside the closed container, and even if the inside of the container has been subjected to a surface treatment to prevent adsorption of the colored gas Z adsorption. Good.
  • the closed container since it is necessary to visually confirm (through visual sense) the deodorizing effect of the test substance, the closed container has a transparent or translucent window partially. Or they must all be transparent or translucent.
  • At least one surface of the container may be colored, or a colored material may be attached to at least one surface so that the colored gas can be clearly observed.
  • the container needs to be able to take in and out the colored gas and the colored gas adsorbing substance, but its size and shape are not limited.
  • the size that is powerful The shape can be appropriately selected according to the size of the colored gas-adsorbing substance having the product form to be disposed therein, the concentration of the colored gas to be used, and the like.
  • shapes such as a box shape (cube shape, rectangular parallelepiped shape, etc.), a columnar shape, a triangular pyramid shape, a spherical shape, and the like can be exemplified, but the shape is not limited thereto.
  • the material of the container is not limited as long as it is as described above, and examples thereof include glass, acrylic resin, plastic, and polyethylene resin.
  • the inner surface of the container may be subjected to fluorine processing, or the inner surface of the container may be covered with a fluorine-processed transparent or translucent sheet.
  • the container includes a bag such as a plastic bag, for example, a tetra bag, and the bag can be used as long as the bag can seal a colored gas.
  • a colored gas is sealed and filled in a closed container.
  • Filling with colored gas Z filling may be performed using a tool such as a syringe, or may be performed directly from a container containing the gas.
  • the test substance is placed in the container.
  • the order in which the colored gas and the test substance are arranged in the closed vessel is not limited to the above, and the colored gas may be sealed in a closed vessel in which the test substance is placed in advance.
  • the colored gas in the container is adsorbed by the substance, and the color in the container disappears with time.
  • the color change over time discoloration change
  • the deodorizing effect of the test substance can be quickly and easily captured as an image.
  • the screening method is also preferably performed under closed (closed) conditions as described above. Specifically, there is a case where the test substance is placed in a sealed container filled with colored gas and filled with Z, and a case where the test substance is not placed in a closed container filled with colored gas and filled with Z (control). The state of the color change in the container over time is shown in contrast. Thereby, even if the test substance has a weak deodorizing effect, the effect can be confirmed.
  • the amount or concentration of the colored gas filled in the closed container, the size and shape of the test substance, and the like are not limited. Can be appropriately selected according to the size of the image. [0028] (2) Evaluation method of the Fufu effect
  • the present invention also provides a method for visually evaluating the deodorizing effect of a test substance.
  • the evaluation method can be performed by arranging a test substance under a colored gas atmosphere and measuring a color change in the colored gas atmosphere. At this time, if the color in the colored gas atmosphere disappears, it is determined that the test substance has a deodorizing effect, and if the color in the colored gas atmosphere does not disappear, it is determined that the test substance has no deodorizing effect. Can be done.
  • the colored gas used in the method of the present invention is a colored gas having an odor at the same time as its color, and examples thereof include nitrogen dioxide, chlorine, bromine, iodine, and diacid chloride. . Among them, nitrogen dioxide, chlorine, and nitrogen dioxide, which is preferred by chlorine dioxide, are particularly preferred.
  • the change in the color of the colored gas (the presence or absence of disappearance) can be visually measured.
  • the presence or absence of the deodorizing effect of the test substance can be roughly determined by visual measurement, and if necessary, the deodorizing effect of the test substance can be more accurately evaluated by the measurement according to the above method. It is possible.
  • the evaluation method of the present invention is preferably performed under closed (closed) conditions using the closed container or the like described in the section of the above screening method. Note that the description of the above-described screening method can be referred to for the type and specific method of a powerful closed container.
  • the sealed container, the colored gas, and the test substance used in the present invention can be used as a kit.
  • the kit can be easily carried, and the method of the present invention can be quickly and easily carried out in various places.
  • substances having an adsorption effect or Z and deodorizing effects can be visually and quickly and easily selected from many test substances. Furthermore, according to the evaluation method of the present invention, the deodorizing effect of the test Can be easily evaluated.
  • a copper plate (50 mm X 25 mm X 1 mm; JISH3100 manufactured by Nippon Test Panel Osaka Co., Ltd.) was placed in a 300 ml Erlenmeyer flask, and 50 ml of nitric acid was added thereto (Chemical No. 141-0136 manufactured by Wako Pure Chemical Industries, Ltd.). Immediately, the above triangular flask was placed in a 10 L Tedlar bag (GL Science) and sealed with a clip (GL Science).
  • FIGS. Figure 1 shows 0 minutes after the addition of the test substance
  • Figure 2 shows 15 minutes after the addition of the test substance
  • Figure 3 shows 30 minutes after the addition of the test substance
  • Figure 4 shows the addition of the test substance And show the state after 60 minutes.
  • FIG. 1 shows a state in Example 1 at 0 minutes after addition of a test substance.
  • the right figure shows the case where the test substance is arranged, and the left figure shows the case where the colored gas adsorbing substance is not arranged (the original is a color diagram).
  • FIG. 2 shows a state in Example 1 15 minutes after the addition of the test substance.
  • the right figure shows the case where the test substance is arranged, and the left figure shows the case where the test substance is not arranged (the original is a color diagram).
  • FIG. 3 shows a state in Example 1 30 minutes after the addition of the test substance.
  • the right figure shows the case where the test substance is arranged, and the left figure shows the case where the test substance is not arranged (the original is a color diagram).
  • FIG. 4 shows a state 60 minutes after the addition of the test substance in Example 1.
  • the right figure shows the case where the test substance is arranged, and the left figure shows the case where the test substance is not arranged (the original is a color diagram).

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Le problème posé par cette invention repose sur la mise au point d'un procédé permettant de saisir l'effet d'élimination d'odeur d'un déodorant au moyen d'images en l'espace d'une courte période de temps et, ce simplement et facilement. Ladite invention a donc pour objet un procédé de criblage d'un article d'essai consistant à disposer des sujets d'essai dans une atmosphère gazeuse colorée et à sélectionner un article d'essai parmi les sujets d'essai à l'aide de l'élimination de couleur de l'atmosphère gazeuse colorée en tant qu'indicateur.
PCT/JP2005/000387 2004-01-16 2005-01-14 Procede de criblage d'un effet desodorisant ou procede d'evaluation associe WO2005078417A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004009917A JP3924757B2 (ja) 2004-01-16 2004-01-16 消臭効果のスクリーニング方法または評価方法
JP2004-009917 2004-01-16

Publications (1)

Publication Number Publication Date
WO2005078417A1 true WO2005078417A1 (fr) 2005-08-25

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PCT/JP2005/000387 WO2005078417A1 (fr) 2004-01-16 2005-01-14 Procede de criblage d'un effet desodorisant ou procede d'evaluation associe

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JP (1) JP3924757B2 (fr)
WO (1) WO2005078417A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104024836A (zh) * 2011-12-22 2014-09-03 Sec株式会社 用于smt在线的自动x射线检查装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10549003B2 (en) * 2016-05-31 2020-02-04 The Procter & Gamble Company Method of demonstrating efficacy of a malodor counteractant product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04122364U (ja) * 1991-04-19 1992-11-02 栗田工業株式会社 消臭剤の評価試験装置
JP2001242153A (ja) * 2000-02-29 2001-09-07 Kao Corp 消臭性能測定方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04122364U (ja) * 1991-04-19 1992-11-02 栗田工業株式会社 消臭剤の評価試験装置
JP2001242153A (ja) * 2000-02-29 2001-09-07 Kao Corp 消臭性能測定方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104024836A (zh) * 2011-12-22 2014-09-03 Sec株式会社 用于smt在线的自动x射线检查装置

Also Published As

Publication number Publication date
JP2005201827A (ja) 2005-07-28
JP3924757B2 (ja) 2007-06-06

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