JPH05126822A - Total organism carbon measuring apparatus - Google Patents

Total organism carbon measuring apparatus

Info

Publication number
JPH05126822A
JPH05126822A JP3315327A JP31532791A JPH05126822A JP H05126822 A JPH05126822 A JP H05126822A JP 3315327 A JP3315327 A JP 3315327A JP 31532791 A JP31532791 A JP 31532791A JP H05126822 A JPH05126822 A JP H05126822A
Authority
JP
Japan
Prior art keywords
value
toc
carbon
output
measured
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.)
Granted
Application number
JP3315327A
Other languages
Japanese (ja)
Other versions
JP2536702B2 (en
Inventor
Yozo Morita
洋造 森田
Takaharu Inoue
敬治 井上
Shingo Sumi
心吾 角
Hiroaki Matsuhisa
浩明 松久
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP3315327A priority Critical patent/JP2536702B2/en
Publication of JPH05126822A publication Critical patent/JPH05126822A/en
Application granted granted Critical
Publication of JP2536702B2 publication Critical patent/JP2536702B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

PURPOSE:To achieve a recording of a TC value, an IC value and a TOC value with a single pen recorder and an identification of the TOC value from other out values. CONSTITUTION:A TC memory 4 stores a TC measured value detected with a CO2 detecting section 2 and an IC memory 6 stores an IC measured value detected with the CO2 detecting section 2. A TOC calculating section 8 determines a difference between both the measured values to calculate the concentration of TOC. An analog output section 10 outputs the TC measured value, the IC measured value and the TOC calculated value by one analog signal sequentially while it controls an output operation to differentiate the output time of the TOC calculated value rom the output time of the TC measured value and IC measured value.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はキャリアガス供給部、試
料注入部、燃焼酸化反応部及びCO2検出部を備え、試
料中の全炭素(TC)と無機炭素(IC)とを別個に測
定する全有機体炭素(TOC)計に関し、特にその測定
値の出力方式に特徴を有するTOC計に関するものであ
る。
The present invention comprises a carrier gas supply unit, a sample injection unit, a combustion oxidation reaction unit and a CO 2 detection unit, and measures total carbon (TC) and inorganic carbon (IC) in a sample separately. The present invention relates to a total organic carbon (TOC) meter, and more particularly to a TOC meter characterized by an output system of its measured value.

【0002】[0002]

【従来の技術】TOC計ではTOC値を得るために、T
CとICを別個に測定し、TOC=TC−ICとして求
める方式が主として行なわれている。そのようなTOC
計では、その出力としてはTOC値のみをアナログ信号
として出力するか、又はTC値、IC値及びTOC値の
全てをそれぞれのアナログ信号として例えば3ペンレコ
ーダに出力して記録するようにしている。
2. Description of the Related Art In a TOC meter, in order to obtain a TOC value, T
A method of measuring C and IC separately and obtaining TOC = TC-IC is mainly used. Such TOC
As for the output, only the TOC value is output as an analog signal, or all of the TC value, the IC value and the TOC value are output as analog signals to, for example, a 3-pen recorder for recording.

【0003】[0003]

【発明が解決しようとする課題】TC値、IC値及びT
OC値の3つの出力をレコーダに記録するには、従来の
方式であれば3ペンレコーダを必要とする。しかし、3
ペンレコーダは1ペンレコーダより価格がかなり高くな
る。そこで、本発明は1ペンレコーダを用いて1つのア
ナログ信号上にTC値、IC値及びTOC値を出力し、
かつTOC値と他の出力値とを識別できるようにするこ
とを目的とするものである。
Problem to be Solved by the Invention TC value, IC value and T value
In order to record the three outputs of the OC value on the recorder, the conventional method requires a three-pen recorder. But 3
Pen recorders are significantly more expensive than one-pen recorders. Therefore, the present invention outputs a TC value, an IC value and a TOC value on one analog signal using a one-pen recorder,
In addition, the purpose is to make it possible to distinguish the TOC value from other output values.

【0004】[0004]

【課題を解決するための手段】図1に本発明を示す。T
Cメモリ4はCO2検出部2で検出されたTC測定値を
記憶し、ICメモリ6はCO2検出部2で検出されたI
C測定値を記憶する。TOC算出部8は両測定値の差を
とってTOC濃度を算出する。アナログ出力部10はT
C測定値、IC測定値及びTOC算出値を1つのアナロ
グ信号で順次出力するとともに、TOC算出値の出力時
間をTC測定値及びIC測定値の出力時間と異ならせる
ように出力動作を制御する。
FIG. 1 shows the present invention. T
The C memory 4 stores the TC measurement value detected by the CO 2 detection unit 2, and the IC memory 6 stores the I measurement value detected by the CO 2 detection unit 2.
Store C measurements. The TOC calculator 8 calculates the TOC concentration by taking the difference between the two measured values. The analog output unit 10 is T
The C measurement value, the IC measurement value, and the TOC calculation value are sequentially output as one analog signal, and the output operation is controlled so that the output time of the TOC calculation value is different from the output time of the TC measurement value and the IC measurement value.

【0005】[0005]

【実施例】図2は本発明が適用されるTOC計の一例を
表わしたものである。流通型サンプル容器12には下側
の入口からサンプルが流れ込み、上側の出口からサンプ
ルが排出されていく。サンプル容器12のサンプルは試
料注入部14によって一定量が採取され、TC反応部1
6又はIC反応部18へ切り替えて導かれる。TC反応
部16には酸化触媒が充填されたTC燃焼管が設けら
れ、そのTC燃焼管を加熱するためにその外側に加熱炉
が設けられている。TC反応部16にはキャリアガス供
給部20から純酸素ガス、又はCO2や炭化水素を除い
た高純度空気がキャリアガスとしてガス流量が制御され
て供給される。TC反応部16では供給された試料中の
炭素成分が全てCO2ガスに変換されてCO2検出部の非
分散型赤外線式ガス分析計(NDIR)22の測定セル
へ導かれて検出される。IC反応部18では無機炭素が
CO2ガスとして発生し、キャリアガスとともにNDI
R22の測定セルへ導かれて検出される。試料注入部1
4はTCやICの検量線作成用に標準液23も注入する
ことができるようになっている。
1 shows an example of a TOC meter to which the present invention is applied. The sample flows into the flow-through type sample container 12 from the lower inlet, and the sample is discharged from the upper outlet. A fixed amount of the sample in the sample container 12 is collected by the sample injection unit 14, and the TC reaction unit 1
6 or the IC reaction part 18 is switched to be guided. The TC reaction section 16 is provided with a TC combustion tube filled with an oxidation catalyst, and a heating furnace is provided outside the TC combustion tube to heat the TC combustion tube. To the TC reaction section 16, pure oxygen gas or high-purity air from which CO 2 and hydrocarbons have been removed is supplied from the carrier gas supply section 20 as a carrier gas at a controlled gas flow rate. In the TC reaction section 16, all the carbon components in the supplied sample are converted into CO 2 gas and guided to the measurement cell of the non-dispersion type infrared gas analyzer (NDIR) 22 of the CO 2 detection section to be detected. Inorganic carbon is generated as CO 2 gas in the IC reaction section 18, and NDI is generated together with the carrier gas.
It is guided to the measuring cell of R22 and detected. Sample injection part 1
In the case of No. 4, the standard solution 23 can also be injected to prepare a calibration curve for TC or IC.

【0006】NDIR22の検出値を処理するために、
信号処理部24が設けられており、信号処理部24でT
CとICとからTOCを算出し、TC,IC及びTOC
をレコーダに出力するためにアナログ出力部10が信号
処理部24に接続されている。26は測定値を表示した
り印字する測定値表示・印字部である。図1と図2を比
較すると、TCメモリ4、ICメモリ6及びTOC算出
部8は信号処理部24に対応している。
In order to process the detected value of the NDIR 22,
A signal processing unit 24 is provided, and the signal processing unit 24 operates at T
TOC is calculated from C and IC, and TC, IC and TOC are calculated.
The analog output unit 10 is connected to the signal processing unit 24 in order to output to the recorder. Reference numeral 26 is a measurement value display / printing unit for displaying and printing the measurement values. Comparing FIG. 1 and FIG. 2, the TC memory 4, the IC memory 6, and the TOC calculation unit 8 correspond to the signal processing unit 24.

【0007】一実施例の動作では、サンプルのTC値と
IC値をある測定周期(例えば10分周期)で測定し、
その差(TC−IC)を演算してTOC値を求め、CR
Tなどの画面上に表示したり、プリンタ上に印字する。
それらの測定値を出力するアナログ信号(DC0〜1V
又はDC4〜20mA)上にTC値、IC値及びTOC
値に対応した信号を順次出力する。TOC値をIC値や
TC値と識別するために、TC値とIC値はそれぞれ1
0秒間だけ出力し、残りの時間(10分周期の測定であ
れば9分40秒間)はTOC値を出力する。
In the operation of one embodiment, the TC value and the IC value of the sample are measured at a certain measurement cycle (for example, 10-minute cycle),
Calculate the TOC value by calculating the difference (TC-IC)
It is displayed on the screen such as T or printed on the printer.
An analog signal (DC0 to 1VDC) that outputs those measured values
Or DC4 ~ 20mA) TC value, IC value and TOC
The signals corresponding to the values are sequentially output. In order to distinguish the TOC value from the IC value or the TC value, the TC value and the IC value are each 1
The TOC value is output only for 0 seconds, and the TOC value is output for the rest of the time (9 minutes and 40 seconds in the case of measurement of 10-minute cycle).

【0008】図3と図4によりTC値、IC値及びTO
C値を出力する手順を説明する。一例としてTC値→I
C値の順に測定し、その後にTOC値を算出するとして
説明する。TC値の測定が終了すると(ステップ1)、
そのTC値をメモリへ記憶する(ステップS2→S
3)。次にIC値の測定が終了すると、そのIC値をメ
モリへ記憶した後(ステップS2→S4)、TOC値を
TOC=TC−ICとして算出する(ステップS5)。
その後、TC値を10秒間アナログ出力し(ステップS
6)、続いてIC値を10秒間アナログ出力し(ステッ
プS7)、その後TOC値をアナログ出力する(ステッ
プS8)。アナログ信号は出力値を変更しなければホー
ルドされるように装置構成されている。そのため、次の
TC測定とIC測定が終了してTOC値が算出されるま
では前回測定のTOC値が出力されつづける。出力の様
子は図4のようになる。
According to FIG. 3 and FIG. 4, TC value, IC value and TO
A procedure for outputting the C value will be described. TC value → I as an example
It is assumed that the C value is measured in order and then the TOC value is calculated. When the measurement of TC value is completed (step 1),
The TC value is stored in the memory (step S2 → S
3). Next, when the measurement of the IC value is completed, the IC value is stored in the memory (steps S2 → S4), and the TOC value is calculated as TOC = TC-IC (step S5).
After that, the TC value is analog-outputted for 10 seconds (step S
6) Then, the IC value is analog-outputted for 10 seconds (step S7), and then the TOC value is analog-outputted (step S8). The analog signal is configured to be held unless the output value is changed. Therefore, the TOC value of the previous measurement continues to be output until the next TC measurement and IC measurement are completed and the TOC value is calculated. The output is as shown in FIG.

【0009】図3と図4の説明では、TC値を先に測定
し、IC値を後で測定する順序に設定されているものと
したが、逆にIC値を先に測定し、TC値を後で測定す
るように設定しておいてもよい。アナログ出力時間はT
C値、IC値及びTOC値のそれぞれについて異なるよ
うに設定してもよい。
In the description of FIGS. 3 and 4, it is assumed that the TC value is measured first and the IC value is set later, but conversely, the IC value is measured first and the TC value is measured. May be set to be measured later. Analog output time is T
The C value, the IC value, and the TOC value may be set differently.

【0010】TOC計によっては、TC値とIC値を測
定するのではなく、POC(揮発性有機体炭素)とNP
OC(非揮発性有機体炭素)を測定し、TOC=POC
+NPOCとしてTOC値を算出するものもある。その
場合は、POC値とNPOC値を順次一定時間、例えば
10秒間ずつ1つのアナログ信号上に出力し、その後に
TOC値をアナログ信号上に出力するようにすればよ
い。その動作は図3、図4におけるTCをPOCに置き
換え、ICをNPOCに置き換えれば、本発明を同様に
適用することができる。
Some TOC meters do not measure TC and IC values, but POC (volatile organic carbon) and NP.
Measure OC (non-volatile organic carbon), TOC = POC
There is also one that calculates the TOC value as + NPOC. In that case, the POC value and the NPOC value may be sequentially output for one fixed time, for example, 10 seconds on one analog signal, and then the TOC value may be output on the analog signal. As for the operation, the present invention can be similarly applied by replacing TC in FIG. 3 and FIG. 4 with POC and replacing IC with NPOC.

【0011】[0011]

【発明の効果】本発明ではTC値、IC値及びTOC値
を1つのアナログ信号として順次出力するとともに、T
OC値をTC値やIC値とは異なる出力時間で出力する
ようにしたので、1ペンレコーダで3つの値を記録する
ことが可能になり、かつTOC値と他の値とを容易に識
別することができるようになる。仮りに、TOC値以外
の2つの測定値を同じ時間出力しても、TC値とIC値
の場合であればTC値は必ずIC値よりも大きい(TO
C値が0の場合はTC値とIC値が同じになる)ため、
これらの2つの値は同じ時間の出力でも識別できる。
According to the present invention, the TC value, the IC value and the TOC value are sequentially output as one analog signal.
Since the OC value is output at an output time different from the TC value and the IC value, it is possible to record three values with one pen recorder and easily distinguish the TOC value from other values. Will be able to. Even if two measured values other than the TOC value are output for the same time, the TC value is always larger than the IC value in the case of TC value and IC value (TO
When C value is 0, TC value and IC value are the same),
These two values can be distinguished even at the same time output.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明を示すブロック図である。FIG. 1 is a block diagram showing the present invention.

【図2】本発明が適用されるTOC計を示す概略構成図
である。
FIG. 2 is a schematic configuration diagram showing a TOC meter to which the present invention is applied.

【図3】一実施例の動作を示すフローチャート図であ
る。
FIG. 3 is a flowchart showing the operation of one embodiment.

【図4】図3の動作により出力された3つの値を示す波
形図である。
FIG. 4 is a waveform diagram showing three values output by the operation of FIG.

【符号の説明】[Explanation of symbols]

2 CO2検出部 4 TCメモリ 6 ICメモリ 8 TOC算出部 10 アナログ出力部 24 信号処理部2 CO 2 detection unit 4 TC memory 6 IC memory 8 TOC calculation unit 10 analog output unit 24 signal processing unit

───────────────────────────────────────────────────── フロントページの続き (72)発明者 松久 浩明 京都府京都市中京区西ノ京桑原町1番地 株式会社島津製作所三条工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Matsuhisa 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto City, Kyoto Prefecture Shimazu Corporation Sanjo Factory

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 キャリアガス供給部、試料注入部、燃焼
酸化反応部及びCO2検出部を備え、試料中の全炭素と
無機炭素とを別個に測定する全有機体炭素測定装置にお
いて、全炭素測定値を記憶するTCメモリと、無機炭素
測定値を記憶するICメモリと、両測定値の差をとって
全有機体炭素濃度を算出するTOC算出部と、全炭素測
定値、無機炭素測定値及び全有機体炭素算出値を1つの
アナログ信号で順次出力し、かつ全有機体炭素算出値の
出力時間を全炭素測定値及び無機炭素測定値の出力時間
と異なるようにしたアナログ出力部とを備えたことを特
徴とする全有機体炭素測定装置。
1. A total organic carbon measuring device comprising a carrier gas supply part, a sample injecting part, a combustion oxidation reaction part and a CO 2 detecting part for separately measuring total carbon and inorganic carbon in a sample. TC memory for storing the measured value, IC memory for storing the inorganic carbon measured value, TOC calculation unit for calculating the total organic carbon concentration by taking the difference between the both measured values, total carbon measured value, inorganic carbon measured value And an analog output section in which the calculated total organic carbon values are sequentially output as one analog signal, and the output time of the calculated total organic carbon values is different from the output time of the measured total carbon values and the measured inorganic carbon values. An all-organic carbon measuring device characterized by being provided.
JP3315327A 1991-10-31 1991-10-31 Total organic carbon measuring device Expired - Fee Related JP2536702B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3315327A JP2536702B2 (en) 1991-10-31 1991-10-31 Total organic carbon measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3315327A JP2536702B2 (en) 1991-10-31 1991-10-31 Total organic carbon measuring device

Publications (2)

Publication Number Publication Date
JPH05126822A true JPH05126822A (en) 1993-05-21
JP2536702B2 JP2536702B2 (en) 1996-09-18

Family

ID=18064075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3315327A Expired - Fee Related JP2536702B2 (en) 1991-10-31 1991-10-31 Total organic carbon measuring device

Country Status (1)

Country Link
JP (1) JP2536702B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM579721U (en) * 2019-02-20 2019-06-21 總翔企業股份有限公司 Water sample analyzing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594286U (en) * 1982-06-29 1984-01-12 石毛 宏 Bread for hot dogs, etc.
JPS6218412A (en) * 1985-07-16 1987-01-27 Mitsubishi Electric Corp Thermosetting resin composition
JPS63126831U (en) * 1987-02-10 1988-08-18

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594286U (en) * 1982-06-29 1984-01-12 石毛 宏 Bread for hot dogs, etc.
JPS6218412A (en) * 1985-07-16 1987-01-27 Mitsubishi Electric Corp Thermosetting resin composition
JPS63126831U (en) * 1987-02-10 1988-08-18

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JP2536702B2 (en) 1996-09-18

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