JP2609457B2 - Hydrogen peroxide concentration measurement method - Google Patents
Hydrogen peroxide concentration measurement methodInfo
- Publication number
- JP2609457B2 JP2609457B2 JP62316083A JP31608387A JP2609457B2 JP 2609457 B2 JP2609457 B2 JP 2609457B2 JP 62316083 A JP62316083 A JP 62316083A JP 31608387 A JP31608387 A JP 31608387A JP 2609457 B2 JP2609457 B2 JP 2609457B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen peroxide
- concentration
- sugar content
- peroxide solution
- brix
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、殺菌剤等に使用される過酸化水素水の濃度
測定方法に関する。TECHNICAL FIELD The present invention relates to a method for measuring the concentration of hydrogen peroxide solution used as a bactericide and the like.
〔従来の技術〕 一般に食料等の無菌充填機では過酸化水素水が容器の
殺菌剤として広く使用されている。[Prior Art] Generally, in an aseptic filling machine for food and the like, hydrogen peroxide solution is widely used as a sterilizer for containers.
ところで、過酸化水素水はその性質上分解し易く、ま
た、加温して使用する場合には水分の蒸発による濃度上
昇が生じ過酸化水素水の濃度が変動し易い。このような
性質を有する過酸化水素水の濃度管理を正確に行なうに
は、濃度測定を頻繁に行なう必要があり、従来は比重計
を用いて過酸化水素水の濃度測定が行なわれていた。By the way, the hydrogen peroxide solution is easily decomposed due to its nature, and when it is heated and used, the concentration thereof is increased due to evaporation of water, and the concentration of the hydrogen peroxide solution is easily changed. In order to accurately control the concentration of the hydrogen peroxide solution having such a property, it is necessary to frequently measure the concentration, and conventionally, the concentration measurement of the hydrogen peroxide solution was performed using a hydrometer.
しかし、比重計は精密なガラス器具のため、測定の条
件、方法が煩雑であり、また比重計が破損し易いという
問題がある。However, since the hydrometer is a precision glass instrument, there are problems that the measurement conditions and methods are complicated and the hydrometer is easily damaged.
このため、過酸化水素水の濃度測定を無菌充填等の現
場で簡単に行なうことのできる濃度測定方法の開発が望
まれていた。Therefore, there has been a demand for the development of a method for measuring the concentration of a hydrogen peroxide solution that can be easily performed on site such as aseptic filling.
本発明は上記の問題点を解決し、容易かつ正確に過酸
化水素水の濃度を測定する方法を提供することを目的と
する。It is an object of the present invention to solve the above problems and provide a method for easily and accurately measuring the concentration of hydrogen peroxide solution.
本発明は、20℃の時の過酸化水素水濃度ｘと光屈折式
の糖度計における糖度ｙ（Brix％）との関係を示す検量
線を、予め下記式 ｙ＝0.44x＋0.3 と定めておき、濃度未知の過酸化水素水を前記糖度計に
より測定して糖度（Brix％）を求め、この測定糖度から
換算された20℃における糖度と前記検量線により過酸化
水素水の濃度を求めるような構成とした。According to the present invention, a calibration curve showing the relationship between hydrogen peroxide concentration x at 20 ° C. and sugar content y (Brix%) in a photorefractive sugar content meter is previously defined as the following expression y = 0.44x + 0.3. Every time, measure the hydrogen peroxide solution of unknown concentration with the sugar content meter to obtain the sugar content (Brix%), and calculate the concentration of the hydrogen peroxide solution from the sugar content at 20 ° C converted from the measured sugar content and the calibration curve. It has a different structure.
濃度未知の過酸化水素水について光屈折式の糖度計を
用いて糖度（Brix％）を測定し、この測定糖度と、予め
求めておいた過酸化水素水濃度と糖度（Brix％）との検
量線より過酸化水素水の濃度を容易かつ正確に得ること
ができる。The sugar content (Brix%) is measured using an optical refractometer for the hydrogen peroxide solution of unknown concentration, and the measured sugar content and the previously determined hydrogen peroxide solution concentration and sugar content (Brix%) are calibrated. The concentration of hydrogen peroxide solution can be easily and accurately obtained from the line.
以下、図面を参照して本発明の一実施例について説明
する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は光屈折式の糖度計の糖度（Brix％）と過酸化
水素水濃度との相関を示す検量線である上記の光屈折式
の糖度計は個々の物質が固有の屈折率を有しており、こ
の屈折率と糖度（Brix％）との間の一定の関係式を基に
試料溶液の屈折率を糖度（Brix％）に変換して表示する
ものである。ここで、糖度（Brix％）表示はショ糖水溶
液の重量／重量パーセントを示すもので、例えば100gの
ショ糖水溶液の中に10gのショ糖が溶けている場合、糖
度（Brix％）は10（Brix％）となる。本発明は、この糖
度（Brix％）と過酸化水素水濃度との間に第１図に示さ
れる比例関係が存在することに着目してなされたもので
ある。すなわち、第１図は、ｘ軸に過酸化水素水濃度
（％）をとりｙ軸に糖度（Brix％）をとった場合、両者
の間に低濃度から高濃度に至るまで下記の式の比例関係
が存在することを示している。Fig. 1 is a calibration curve showing the correlation between the sugar content (Brix%) of a photorefractive saccharimeter and the concentration of hydrogen peroxide solution. In the above photorefractive saccharimeter, each substance has a unique refractive index. The refractive index of the sample solution is converted into the sugar content (Brix%) and displayed based on the constant relational expression between the refractive index and the sugar content (Brix%). Here, the sugar content (Brix%) display indicates the weight / weight percentage of the sucrose aqueous solution. For example, when 10 g of sucrose is dissolved in 100 g of the sucrose aqueous solution, the sugar content (Brix%) is 10 ( Brix%). The present invention has been made by paying attention to the fact that there is a proportional relationship shown in FIG. 1 between the sugar content (Brix%) and the concentration of hydrogen peroxide solution. That is, Fig. 1 shows that when the hydrogen peroxide concentration (%) is taken on the x-axis and the sugar content (Brix%) is taken on the y-axis, the proportion of Indicates that a relationship exists.
ｙ＝0.44x＋0.3 上述のように溶液の屈折率と糖度（Brix％）とが一定
の関係を有し、また、糖度（Brix％）と過酸化水素水濃
度とが上記の関係を有することにより、過酸化水素水の
屈折率を糖度計で糖度（Brix％）表示し、この糖度（Br
ix％）から第１図に基づき過酸化水素水濃度を得ること
ができる。y = 0.44x + 0.3 As described above, the refractive index of the solution and the sugar content (Brix%) have a fixed relationship, and the sugar content (Brix%) and the hydrogen peroxide concentration have the above relationship. The refractive index of the hydrogen peroxide solution is displayed by the sugar content meter, and the sugar content (Brix%) is displayed.
ix%), the concentration of hydrogen peroxide solution can be obtained based on FIG.
なお、上記の式は溶液温度が20℃における過酸化水素
水濃度〔ｘ〕と糖度〔ｙ〕との関係を示すものである。
このため、溶液濃度が20℃以外の場合には、糖度計が表
示する糖度（Brix％）を20℃における糖度（Brix％）に
換算した後、上記の式に基づく第１図の検量線から過酸
化水素水濃度を求めなければならない。The above equation shows the relationship between the hydrogen peroxide concentration [x] and the sugar content [y] when the solution temperature is 20 ° C.
For this reason, when the solution concentration is other than 20 ° C, after converting the sugar content (Brix%) displayed by the sugar meter into the sugar content (Brix%) at 20 ° C, from the calibration curve of Fig. 1 based on the above formula, The hydrogen peroxide concentration must be determined.
また、糖度計の目盛を第１図に基づいて糖度（Brix
％）表示から過酸化水素水濃度表示に変更しておくこと
により、糖度計の目盛から過酸化水素水濃度を直読する
ことが可能となる。In addition, the scale of the refractometer was set based on Brix (Brix) based on FIG.
By changing the display from%) to the hydrogen peroxide solution concentration display, the hydrogen peroxide solution concentration can be directly read from the scale of the refractometer.
第２図は、過酸化水素水濃度の測定に本発明の方法を
適用した場合の一実施例を示す。FIG. 2 shows an example in which the method of the present invention is applied to the measurement of hydrogen peroxide concentration.
第２図において、貯蔵タンク１に貯蔵されている過酸
化水素水２は採取器３により濃度測定必要量が採取さ
れ、次に糖度計４にて糖度（Brix％）が測定され、表１
に示される検量線から過酸化水素水２の濃度が簡単に得
られる。また、本発明によれば連続的に測定できる糖度
計４を用いることにより、過酸化水素水濃度の連続測定
が可能となり、このデータに基づき過酸化水素水濃度を
自動制御することもできる。In FIG. 2, the required amount of concentration measurement of the hydrogen peroxide solution 2 stored in the storage tank 1 is collected by the sampling device 3, and then the sugar content (Brix%) is measured by the saccharimeter 4.
The concentration of the hydrogen peroxide solution 2 can be easily obtained from the calibration curve shown in FIG. Further, according to the present invention, the concentration of hydrogen peroxide solution can be continuously measured by using the sugar meter 4 capable of continuously measuring, and the concentration of hydrogen peroxide solution can be automatically controlled based on this data.
本発明の過酸化水素水の濃度測定方法によれば、きわ
めて容易かつ正確に過酸化水素水の濃度を測定すること
がてできる。According to the method for measuring the concentration of hydrogen peroxide solution of the present invention, the concentration of hydrogen peroxide solution can be measured very easily and accurately.
また、測定に要する過酸化水素水の量も微量でよく、
さらに、連続測定も可能となり、過酸化水素水濃度の自
動制御への応用もできる。Also, the amount of hydrogen peroxide solution required for measurement may be very small,
Furthermore, continuous measurement is possible, and it can be applied to automatic control of hydrogen peroxide concentration.
第１図は本発明において用いる過酸化水素水濃度と糖度
（Brix％）との相関を示す検量線、第２図は過酸化水素
水の濃度測定に本発明を用いた場合の一実施例を示す図
面である。 １……貯蔵タンク、２……過酸化水素水、３……採取
器、４……糖度計。FIG. 1 is a calibration curve showing the correlation between the concentration of hydrogen peroxide and the sugar content (Brix%) used in the present invention, and FIG. 2 is an example in which the present invention is used for measuring the concentration of hydrogen peroxide. It is a drawing shown. 1 ... Storage tank, 2 ... Hydrogen peroxide solution, 3 ... Sampling device, 4 ... Sugar content meter.
Claims (1)
の糖度計における糖度ｙ（Brix％）との関係を示す検量
線を、予め下記式 ｙ＝0.44x＋0.3 と定めておき、濃度未知の過酸化水素水を前記糖度計に
より測定して糖度（Brix％）を求め、この測定糖度から
換算された20℃における糖度と前記検量線により過酸化
水素水の濃度を求めることを特徴とする過酸化水素水の
濃度測定方法。1. A calibration curve indicating the relationship between the concentration of hydrogen peroxide solution x at 20 ° C. and the sugar content y (Brix%) in a light refraction type sugar content meter is determined in advance as the following formula y = 0.44x + 0.3. In advance, the hydrogen peroxide solution of unknown concentration is measured by the sugar content meter to obtain the sugar content (Brix%), and the concentration of the hydrogen peroxide solution is calculated from the sugar content at 20 ° C converted from the measured sugar content and the calibration curve. A method for measuring the concentration of a hydrogen peroxide solution, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62316083A JP2609457B2 (en) | 1987-12-16 | 1987-12-16 | Hydrogen peroxide concentration measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62316083A JP2609457B2 (en) | 1987-12-16 | 1987-12-16 | Hydrogen peroxide concentration measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158332A JPH01158332A (en) | 1989-06-21 |
| JP2609457B2 true JP2609457B2 (en) | 1997-05-14 |
Family
ID=18073063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62316083A Expired - Fee Related JP2609457B2 (en) | 1987-12-16 | 1987-12-16 | Hydrogen peroxide concentration measurement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2609457B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189063A (en) * | 1981-04-19 | 1982-11-20 | Tadashi Enatsu | Presuming method for concentration of bod, cod and ss applying absorbance and constant turbidity refractive index |
| JPS6239431A (en) * | 1985-08-01 | 1987-02-20 | 雪印乳業株式会社 | Method and device for automatically measuring and controlling concentration of hydrogen peroxide in sterile filler |
-
1987
- 1987-12-16 JP JP62316083A patent/JP2609457B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01158332A (en) | 1989-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |