JPH0638068B2 - Liquid analyzer - Google Patents
Liquid analyzerInfo
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- JPH0638068B2 JPH0638068B2 JP29082887A JP29082887A JPH0638068B2 JP H0638068 B2 JPH0638068 B2 JP H0638068B2 JP 29082887 A JP29082887 A JP 29082887A JP 29082887 A JP29082887 A JP 29082887A JP H0638068 B2 JPH0638068 B2 JP H0638068B2
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- tube
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- pressure
- analysis
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、近赤外線分析装置を用いて醤油、酒、ジュー
ス等の液体の成分を分析する方法と装置に関する。TECHNICAL FIELD The present invention relates to a method and an apparatus for analyzing components of liquids such as soy sauce, liquor and juice by using a near infrared ray analyzing apparatus.
（従来の技術） 近赤外線分析装置は液体の成分を多項目にわたり、迅速
に、簡便に分析できることから、最近広く利用されるよ
うになってきた。(Prior Art) Near-infrared analyzers have come to be widely used recently because they can analyze liquid components over many items quickly and easily.
そして、能率を高めるべく、ポンプにて連続的・自動的
に近赤外線分析装置へ試料を供給する自動分析方法が普
及しつつある。Then, in order to improve efficiency, an automatic analysis method for continuously and automatically supplying a sample to a near-infrared analyzer by a pump is becoming popular.
（発明が解決しようとする問題点） しかしながら、従来の測定技術には、ポンプの脈動が試
料の液圧を変化させ、また試料セット時に混入する空気
が作用し、近赤外線分析装置内の分析セルの分析精度を
悪化させるという不具合がある。(Problems to be Solved by the Invention) However, in the conventional measurement technique, the pulsation of the pump changes the liquid pressure of the sample, and the air mixed in at the time of setting the sample acts on the analysis cell in the near-infrared analyzer. There is a problem that the accuracy of analysis is deteriorated.
（問題点を解決するための手段） 上記要望に応えるべく本発明は、液体の成分を分析する
近赤外線分析装置と、この近赤外線分析装置へ液体を供
給する試料供給装置と、これら近赤外線分析装置と試料
供給装置とを連結するチューブに管を立て、この管の上
部を大気に連通して、この管を介して液中の空気を除く
と共にチューブの内圧が高まった時に液体を大気側に放
出することでチューブ内圧を一定にする圧力制御装置
と、から液体の分析装置を構成する。(Means for Solving Problems) In order to meet the above-mentioned demands, the present invention provides a near-infrared analysis device for analyzing liquid components, a sample supply device for supplying a liquid to the near-infrared analysis device, and these near-infrared analysis devices. A tube is erected on the tube that connects the device and the sample supply device, the upper part of this tube is connected to the atmosphere, the air in the liquid is removed through this tube, and when the internal pressure of the tube increases, the liquid moves to the atmosphere side. A liquid analysis device is constituted by a pressure control device that keeps the tube internal pressure constant by discharging the liquid.
（作用） チューブに立てた管を介して液中の空気を抜き、更にチ
ューブの内圧が高まった時に液体を大気側へ放出するこ
とでチューブ内圧を一定に維持する。(Operation) The air in the liquid is evacuated through the tube standing on the tube, and when the internal pressure of the tube is further increased, the liquid is discharged to the atmosphere side to keep the internal pressure of the tube constant.
（実施例） 以下に本発明の実施例を添付図面及び表に基づいて説明
する。(Example) Below, the Example of this invention is described based on an accompanying drawing and a table.
第１図は本発明に係る液体の分析装置構成図であり、液
体の分析装置１は、大きく、液体の成分を分析する近赤
外線分析装置２と、この装置２へ液体を供給・停止する
試料供給装置３と、液体の圧力を一定に制御する圧力制
御装置４とから成る。FIG. 1 is a block diagram of a liquid analyzer according to the present invention. The liquid analyzer 1 is roughly composed of a near-infrared analyzer 2 for analyzing liquid components and a sample for supplying / stopping the liquid to / from the device 2. It comprises a supply device 3 and a pressure control device 4 for controlling the pressure of the liquid at a constant level.
更に、液体の分析装置１には、前記試料供給装置３に接
続して試料液体を提供する自動サンプラ５と、１サイク
ル毎に近赤外線分析装置２と試料供給装置３とを清掃す
る洗浄装置６とが、また試料供給装置３の途中には試料
液体を一定の温度に保つ恒温装置７が夫々付加されてい
る。Further, in the liquid analyzer 1, an automatic sampler 5 that is connected to the sample supply device 3 to provide a sample liquid, and a cleaning device 6 that cleans the near infrared ray analysis device 2 and the sample supply device 3 for each cycle. In addition, a constant temperature device 7 for keeping the sample liquid at a constant temperature is added in the middle of the sample supply device 3, respectively.
試料供給装置３は、チューブポンプ３ａと、このチュー
ブポンプ３ａから放射状に延設されるチューブ３ｂ，３
ｃ，３ｄ，３ｅとからなる。The sample supply device 3 includes a tube pump 3a and tubes 3b, 3 radially extending from the tube pump 3a.
c, 3d, 3e.
チューブポンプ３ａは、第２図に示すように、回転ロー
ラ３ｆ…にて可撓性チューブ３ｇ，３ｈを扱くが如くし
て流体を一方向へ移動させる周知のポンプである。As shown in FIG. 2, the tube pump 3a is a well-known pump that moves fluid in one direction as if the flexible tubes 3g and 3h are handled by rotating rollers 3f.
チューブ３ｃの途中には、コイル状に形成した熱交換部
３ｉが介設され、熱交換部３ｉは恒温装置７の恒温槽７
ａに収容されている。A coil-shaped heat exchanging portion 3i is provided in the middle of the tube 3c, and the heat exchanging portion 3i is a constant temperature bath 7 of the constant temperature device 7.
It is housed in a.
圧力制御装置４は、第３図に示す如く、脚部分を垂直に
起立させるＴ字管４ａと、Ｔ字管４ａの上端から水平方
向に分岐するオーバーフロ管４ｂと、Ｔ字管４ａの上端
から更に上方に延出する空気抜き管４ｃとからなる。As shown in FIG. 3, the pressure control device 4 includes a T-shaped tube 4a that vertically erects the leg portion, an overflow tube 4b that horizontally branches from the upper end of the T-shaped tube 4a, and an upper end of the T-shaped tube 4a. And an air vent pipe 4c extending further upward from.
自動サンプラ５は、試料液体を収容する試験管状のカラ
ム５ａ，５ｂを起立し移動させるターンテーブル５ｃ
と、このターンテーブル５ｃを間欠回動させるサンプラ
制御函５ｄとからなり、複数のカラム５ａ，５ｂ…を分
析するスケジュールに合せて前記チューブ３ｂ端に臨ま
せる。The automatic sampler 5 is a turntable 5c that erects and moves test tubular columns 5a and 5b containing a sample liquid.
And a sampler control box 5d for intermittently rotating the turntable 5c, and the plurality of columns 5a, 5b ... Are exposed to the end of the tube 3b in accordance with a schedule for analysis.
洗浄装置６は、洗浄液タンク６ａと、このタンク６ａ中
に差し込まれるチューブ６ｂと、このチューブ６ｂの途
中に介設され、洗浄液を圧送するチューブポンプ６ｃと
からなる。チューブポンプ６ｃは前記したチューブポン
プ３ａと同構造である。The cleaning device 6 includes a cleaning liquid tank 6a, a tube 6b inserted into the tank 6a, and a tube pump 6c interposed in the middle of the tube 6b to pump the cleaning liquid under pressure. The tube pump 6c has the same structure as the tube pump 3a described above.
チューブ６ｂの先端６ｄはカラム５ａ…の近傍に開口
し、チューブ３ｂの基端３ｌと接続可能にある。即ち、
チューブ３ｂの基端３ｌは、可撓性に豊み矢印Ａの如く
揺動自在であって、例えば揺動シリンダユニットの如き
切換機構３ｍによってカラム５ａ開口とチューブ６ｂの
先端６ｄとの一方へ自由に連結し得る。The tip 6d of the tube 6b is opened in the vicinity of the columns 5a ... And can be connected to the base end 3l of the tube 3b. That is,
The base end 3l of the tube 3b is flexible and can swing freely as shown by the arrow A, and can be freely moved to one of the column 5a opening and the tip 6d of the tube 6b by a switching mechanism 3m such as a swing cylinder unit. Can be connected to.
図中８はコントローラであり、このコントローラ８は、
近赤外線分析装置２、試料供給装置３と、これらに連動
する切換機構３ｍ、サンプラ制御函５ｄ、チューブポン
プ６ｃを包括して制御する。In the figure, 8 is a controller, and this controller 8 is
The near-infrared analyzer 2, the sample supply device 3, and a switching mechanism 3m interlocking with these, a sampler control box 5d, and a tube pump 6c are comprehensively controlled.
以上の構成からなる液体の分析装置１の作用を以下に説
明する。The operation of the liquid analyzer 1 having the above configuration will be described below.
先ず、切換機構３ｍにてチューブ３ｂの基端３ｌを洗浄
装置６の先端６ｄに連結し、チューブポンプ３ａ，６ｃ
を作動し、洗浄液タンク６ａ内の洗浄液をチューブ６ｂ
を介してチューブ３ｂ→チューブポンプａ→チューブ３
ｃ→熱交換部３ｉ→圧力制御装置４→チューブ３ｃ→近
赤外線分析装置２→チューブ３ｄの順路にて流通せしめ
これらを十分に洗浄する。First, the proximal end 3l of the tube 3b is connected to the distal end 6d of the cleaning device 6 by the switching mechanism 3m, and the tube pumps 3a and 6c are connected.
To activate the cleaning liquid in the cleaning liquid tank 6a into the tube 6b.
Via tube 3b → tube pump a → tube 3
c → Heat exchange section 3i → Pressure control device 4 → Tube 3c → Near infrared analysis device 2 → Tube 3d are circulated in the normal route to thoroughly wash them.
ポンプ３ａ，６ｃを停止し、切換機構３ｍにてチューブ
３ｂの基端３ｌをカラム５ａにつなぎ替える。The pumps 3a and 6c are stopped, and the base end 3l of the tube 3b is connected to the column 5a by the switching mechanism 3m.
ポンプ３ａを再動させることにより、カラム５ａ内の試
料液体はチューブ３ｂ→ポンプ３ａ→チューブ３ｃを介
して近赤外線分析装置２に送り込まれる。By reactivating the pump 3a, the sample liquid in the column 5a is sent to the near-infrared analyzer 2 through the tube 3b → the pump 3a → the tube 3c.
チューブ３ｃの途中において、試料液体は、先ず熱交換
部３ｉにて所定の温度に変換され一定温に保たれる。In the middle of the tube 3c, the sample liquid is first converted into a predetermined temperature in the heat exchange section 3i and kept at a constant temperature.
次いで、試料液体は、圧力制御装置４を通る。圧力制御
装置４では、試料液体は、第３図に示すＨ１の高さにあ
るオーバフロー管４ｂから外方へ常時流出し、仍って、
流通する試料液体の圧力は水頭Ｈ１に維持される。ま
た、チューブ３ｂの基端３ｌの切替えの際にチューブ３
ｂへ侵入する大気空気は、流れに沿って液体の上部に片
寄り、圧力制御装置４のＴ字管４ａにて、その垂直部分
から上方へ浮き上り、空気抜き管４ｃを介して上方大気
へ流出する。The sample liquid then passes through the pressure control device 4. In the pressure control device 4, the sample liquid always flows out from the overflow pipe 4b at the height of H1 shown in FIG.
The pressure of the flowing sample liquid is maintained at the head H1. Also, when switching the proximal end 3l of the tube 3b, the tube 3
Atmospheric air entering b is offset to the upper part of the liquid along the flow, floats upward from the vertical portion of the T-shaped tube 4a of the pressure control device 4 and flows out to the upper atmosphere via the air vent tube 4c. To do.
即ち、上記した圧力制御装置４は極めて簡単な構造にし
て、均圧と空気抜き作用を為す。この状態で近赤外線分
析装置２は試料液体分析を実施する。That is, the pressure control device 4 described above has an extremely simple structure and performs pressure equalization and air bleeding action. In this state, the near infrared ray analysis device 2 carries out the sample liquid analysis.
分析後、切換装置３ｍにてチューブ３ｂの基端３ｌをカ
ラム５ａから外し、チューブ６ｂの先端６ｄへつなぎか
える。After the analysis, the proximal end 3l of the tube 3b is removed from the column 5a by the switching device 3m, and is connected to the distal end 6d of the tube 6b.
チューブポンプ３ａ，６ｃを起動し、チューブポンプ３
ａ、チューブ３ｂ，３ｃ、近赤外線分析装置２を洗浄す
る。Start the tube pumps 3a and 6c to start the tube pump 3
a, the tubes 3b and 3c, and the near-infrared analyzer 2 are washed.
サンプラ制御函５ａにてターンテーブル５ｃを１ピッチ
回転させる。The turntable 5c is rotated by one pitch using the sampler control box 5a.
チューブ３ｂの基端３ｌをカラム５ｂに接続して、カラ
ム５ａと同様の順にてカラム５ｂ内の試料液体の分析を
実施する。The proximal end 3l of the tube 3b is connected to the column 5b, and the sample liquid in the column 5b is analyzed in the same order as the column 5a.
以上に述べた作動の全ては、コントローラ８の制御指令
によって自動で為される。All the operations described above are automatically performed by the control command of the controller 8.
次に上記した液体の分析装置１による分析方法が以下に
有効であるか、実験データを基に説明する。Next, it will be described based on experimental data whether the above-described analysis method of the liquid analyzer 1 is effective.
実験は試料としては濃口醤油を用いた。本発明方法につ
いては、圧力制御装置４の前記高さＨ１を固定し、チュ
ーブ３ｃの圧力を１５mmAqに維持し、繰り返し分析して
それらの平均、標準偏差を算出した。In the experiment, soy sauce was used as a sample. Regarding the method of the present invention, the height H1 of the pressure control device 4 was fixed, the pressure in the tube 3c was maintained at 15 mmAq, and repeated analysis was performed to calculate the average and standard deviation thereof.
一方、対照法については、圧力制御装置４の高さＨ１を
種々変化させ、チューブ３ｃの圧力を１３，１５，１
８，２０，２２mmAqに設定し、それらの夫々について繰
り返し分析してそれらの平均、標準偏差を算出した。実
験結果を第１表に示す。On the other hand, in the control method, the height H1 of the pressure control device 4 is variously changed, and the pressure of the tube 3c is set to 13, 15, 1.
It was set to 8, 20, 22 mmAq, and repeated analysis was performed for each of them, and their average and standard deviation were calculated. The experimental results are shown in Table 1.
なお近赤外線分析装置２による各成分の定量は、（財）
日本醤油研究所編「しょうゆ分析法」に記載の常用法と
対比して作成した検量線に基づいて行なった。すなわち
常用法としては窒素にはケルダール法を、アルコールに
はガスクロマトグラフィーを、乳酸およびグルタミン酸
には酵素法を、食塩にはモール法をそれぞれ用いた。Quantification of each component by the near-infrared analyzer 2 is
It was performed based on a calibration curve prepared by comparison with the conventional method described in “Soy Sauce Analysis Method” edited by Japan Soy Sauce Research Institute. That is, as a conventional method, the Kjeldahl method was used for nitrogen, the gas chromatography was used for alcohol, the enzymatic method was used for lactic acid and glutamic acid, and the Mohr method was used for salt.
そして生醤油および火入れ済の醤油について、２４５点
を２回ずつ近赤外線分析装置により測定し、各成分につ
いて下記のような重回帰式および重回帰係数を得た。第
１表の分析値は該重回帰式を基に算出したものである。Then, 245 points of raw soy sauce and burned soy sauce were measured twice by a near infrared analyzer, and the following multiple regression equation and multiple regression coefficient were obtained for each component. The analysis values in Table 1 are calculated based on the multiple regression equation.
また、第２表は本発明の方法によって、酒類および果汁
のアルコールおよび還元糖についてそれぞれ１０回ずつ
繰り返し分析した結果を示す。In addition, Table 2 shows the results of repeated analysis of the alcohol and reducing sugar of liquor and fruit juice 10 times each by the method of the present invention.
重回帰式 窒素＝0.796-35.83・ABS(4)+143.5・ABS(7)-87.60・ABS
(9)-165.0・ABS(13)+28.98 ・ABS(14)+122.2 ・ABS(20) アルコール＝-21.96-310.9 ・ABS(2)+380.7・ABS(4)-25
0.5・ABS(6)+115.2・ABS(7)+71.75・ABS(19)+71.20 ・A
BS(20) 乳酸＝22.80+489.0・ABS(6)-803.0・ABS(7)+291.4・ABS
(9)+336.1・ABS(12)-1270・ABS(13)+293.2 ・ABS(20) グルタミン酸＝-5.501-157.1 ・ABS(3)+129.1・ABS(4)-
65.23・ABS(5)+288.9・ABS(7)-267.3・ABS(10)+98.46
・ABS(14) 食塩＝3.389-492.8・ABS(3)+123.1・ABS(5)+767.3・ABS
(7)-390.3・ABS(10)-77.32 ・ABS(11)+109.5 ・ABS(16) ※ABS(N)は吸光度を示す。Multiple regression equation Nitrogen ＝ 0.796-35.83 ・ ABS (4) +143.5 ・ ABS (7) -87.60 ・ ABS
(9) -165.0 ・ ABS (13) +28.98 ・ ABS (14) +122.2 ・ ABS (20) Alcohol = -21.96-310.9 ・ ABS (2) +380.7 ・ ABS (4) -25
0.5 ・ ABS (6) +115.2 ・ ABS (7) +71.75 ・ ABS (19) +71.20 ・ A
BS (20) Lactic acid = 22.80 + 489.0 / ABS (6) -803.0 / ABS (7) + 291.4 / ABS
(9) +336.1 ・ ABS (12) -1270 ・ ABS (13) +293.2 ・ ABS (20) Glutamic acid = -5.501-157.1 ・ ABS (3) +129.1 ・ ABS (4)-
65.23 ・ ABS (5) +288.9 ・ ABS (7) -267.3 ・ ABS (10) +98.46
・ ABS (14) salt = 3.389-492.8 ・ ABS (3) +123.1 ・ ABS (5) +767.3 ・ ABS
(7) -390.3 ・ ABS (10) -77.32 ・ ABS (11) +109.5 ・ ABS (16) * ABS (N) indicates the absorbance.
※上式において単位は何れも(W/V%)である。* In the above formula, all units are (W / V%).
重回帰係数 窒素；0.9948 アルコール；0.9940 グルタミン酸；0.9145 乳酸；0.8814 食塩；0.9971 前記第１表より明らかな如く、本発明方法による方が分
析値にバラツキがなく安定した結果が得られることがわ
かる。Multiple regression coefficient Nitrogen; 0.9948 Alcohol; 0.9940 Glutamic acid; 0.9145 Lactic acid; 0.8814 Salt; 0.9971 As is clear from Table 1, the method of the present invention provides stable results with no variation in analytical values.
また、本発明は、醤油、ワイン、清酒、ブドウ果汁の
他、ウィスキー、ビールなど酒類、ミカン、リンゴ等ジ
ュース類、さらに牛乳などの成分分析に有効である。Further, the present invention is effective for component analysis of soy sauce, wine, sake, grape juice, whiskey, liquor such as beer, juice such as mandarin orange, apple, and milk.
尚、本発明の圧力制御装置４は、要は近赤外線分析装置
２内の試料液体の圧力を分析タイミングにおいて一定に
維持するものであればよく、例えば第４図、第５図に示
す装置を採用してもよい。The pressure control device 4 of the present invention may be any device as long as it keeps the pressure of the sample liquid in the near infrared analysis device 2 constant at the analysis timing. For example, the device shown in FIGS. 4 and 5 is used. May be adopted.
即ち、第４図の装置はチューブ３ｃに流れ方向に沿っ
て、空気抜き管４ｄと、圧力制御弁４ｅと、圧力センサ
４ｆとを介設する。That is, in the apparatus of FIG. 4, an air vent pipe 4d, a pressure control valve 4e, and a pressure sensor 4f are provided in the tube 3c along the flow direction.
空気抜き管４ｄはチューブ３ｃから垂直に十分高く起立
し、空気のみを上方へ放出する。The air vent pipe 4d stands up vertically from the tube 3c at a sufficiently high level and discharges only air upward.
圧力制御弁４ｅは、圧力センサ４ｆの圧力信号を圧力コ
ントローラ４ｇに入力し、圧力コントローラ４ｇにて目
標圧力値と比較し、圧力コントローラ４ｇは実圧力値を
この目標圧力値に合せるべく圧力制御弁４ｅを開閉す
る。The pressure control valve 4e inputs the pressure signal of the pressure sensor 4f to the pressure controller 4g, and the pressure controller 4g compares it with a target pressure value. The pressure controller 4g adjusts the actual pressure value to this target pressure value. Open and close 4e.
また第５図の装置は、第４図の圧力制御弁４ｅを廃し、
第１図のラインポンプ３ａをチューブポンプ３ｎとチュ
ーブ３ｐに置き換えたものである。Further, the apparatus of FIG. 5 eliminates the pressure control valve 4e of FIG.
The line pump 3a in FIG. 1 is replaced with a tube pump 3n and a tube 3p.
即ち、試料液体の空気は空気抜き管４ｄで抜かれ、圧力
センサ４ｆでモニタされ、圧力コントローラ４ｇの作用
にてチューブポンプ３ｎの回転数を高めて昇圧する如く
する。昇圧手段はチューブポンプに限らずギヤーポン
プ、ベーンポンプ、タービンポンプなど使用可能であ
る。そして、複数の圧力制御装置４…をチューブ３ｃ、
チューブ３ｄに介設してもよい。That is, the air of the sample liquid is evacuated by the air bleeder 4d, monitored by the pressure sensor 4f, and the pressure controller 4g acts to increase the rotational speed of the tube pump 3n to increase the pressure. The boosting means is not limited to the tube pump, but a gear pump, a vane pump, a turbine pump, or the like can be used. The plurality of pressure control devices 4 ... Are connected to the tubes 3c,
You may interpose in the tube 3d.
また、圧力変動を除く方法として、分析タイミング前に
チューブポンプ３ａを停止させるなどして近赤外線分析
装置２内の液体を静止させ、もって圧力を静定させるも
のも有効である。Further, as a method of eliminating the pressure fluctuation, it is effective to stop the liquid in the near infrared ray analyzer 2 by stopping the tube pump 3a before the analysis timing so that the pressure is statically settled.
（発明の効果） 以上に述べた通り、本発明の液体分析装置はチューブに
立てた管を介して液中の空気を抜くようにしたので、試
料セットの際に混入した空気の影響を排除でき、分析精
度の向上が図れる。(Effects of the Invention) As described above, the liquid analyzer of the present invention is designed so that the air in the liquid is evacuated through the tube standing upright in the tube, so that the influence of the air mixed during the sample setting can be eliminated. The analysis accuracy can be improved.
更にチューブの内圧が高まった時に液体を大気側へ放出
することでチューブ内圧を一定に維持するようにしたの
で、ポンプの脈動の影響を排除でき、分析精度の向上が
図れる。Further, when the internal pressure of the tube is increased, the liquid is discharged to the atmosphere side to keep the internal pressure of the tube constant, so that the influence of the pulsation of the pump can be eliminated and the accuracy of analysis can be improved.
従って、本発明は、チューブに管を立てるという極めて
簡単な手法で、分析精度を高め、生産の効率化を図るこ
とができる。Therefore, according to the present invention, it is possible to improve analysis accuracy and improve production efficiency by a very simple method of erecting a tube.
第１図は本発明に係る流体の分析装置構成図、第２図は
チューブポンプの構造説明図、第３図は圧力制御装置の
第１実施例図、第４図は同第２実施例図、第５図は同第
３実施例図である。 尚、図面中、１は液体の分析装置、２は近赤外線分析装
置、３は試料供給装置、４は圧力制御装置、４ａは管
（Ｔ字管）、４ｂは管（オーバーフロー管）、４ｃは管
（空気抜き管）である。FIG. 1 is a configuration diagram of a fluid analyzer according to the present invention, FIG. 2 is a structural explanatory view of a tube pump, FIG. 3 is a first embodiment diagram of a pressure control device, and FIG. 4 is a second embodiment diagram thereof. FIG. 5 is a diagram of the third embodiment. In the drawings, 1 is a liquid analysis device, 2 is a near-infrared analysis device, 3 is a sample supply device, 4 is a pressure control device, 4a is a pipe (T-shaped pipe), 4b is a pipe (overflow pipe), and 4c is It is a pipe (air vent pipe).
───────────────────────────────────────────────────── フロントページの続き 審査官 平井 良憲 (56)参考文献 特公 昭62−23815（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page Examiner Yoshinori Hirai (56) References Japanese Patent Publication Sho 62-23815 (JP, B2)
Claims (1)
と、 この近赤外線分析装置へ液体を供給する試料供給装置
と、 これら近赤外線分析装置と試料供給装置とを連結するチ
ューブに管を立て、この管の上部を大気に連通して、こ
の管を介して液中の空気を除くと共にチューブの内圧が
高まった時に液体を大気側に放出することでチューブ内
圧を一定にする圧力制御装置と、 から成ることを特徴とする液体の分析装置。1. A near-infrared analyzing device for analyzing a component of a liquid, a sample supplying device for supplying a liquid to the near-infrared analyzing device, and a tube for standing a tube connecting the near-infrared analyzing device and the sample supplying device. , A pressure control device that connects the upper part of this tube to the atmosphere, removes the air in the liquid through this tube, and discharges the liquid to the atmosphere side when the internal pressure of the tube rises A liquid analysis device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29082887A JPH0638068B2 (en) | 1987-11-18 | 1987-11-18 | Liquid analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29082887A JPH0638068B2 (en) | 1987-11-18 | 1987-11-18 | Liquid analyzer |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23931193A Division JP2597075B2 (en) | 1993-09-27 | 1993-09-27 | Liquid analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132934A JPH01132934A (en) | 1989-05-25 |
| JPH0638068B2 true JPH0638068B2 (en) | 1994-05-18 |
Family
ID=17761010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29082887A Expired - Fee Related JPH0638068B2 (en) | 1987-11-18 | 1987-11-18 | Liquid analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638068B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3415862B2 (en) * | 1992-07-06 | 2003-06-09 | 株式会社フジクラ | CVD raw material vaporizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310763A (en) * | 1979-10-15 | 1982-01-12 | John Shields | Electro-optical analyzer for measuring percentage by weight of fat, protein and lactose in milk |
-
1987
- 1987-11-18 JP JP29082887A patent/JPH0638068B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01132934A (en) | 1989-05-25 |
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