CN107843682A - The fault detection method and VOC continuous exhaust gas analysis devices of VOC continuous exhaust gas analysis devices - Google Patents

The fault detection method and VOC continuous exhaust gas analysis devices of VOC continuous exhaust gas analysis devices Download PDF

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CN107843682A
CN107843682A CN201610829498.1A CN201610829498A CN107843682A CN 107843682 A CN107843682 A CN 107843682A CN 201610829498 A CN201610829498 A CN 201610829498A CN 107843682 A CN107843682 A CN 107843682A
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voc
exhaust gas
chromatographic peak
continuous exhaust
failure
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CN107843682B (en
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并河信宽
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Shimadzu Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/86—Signal analysis
    • G01N30/8624—Detection of slopes or peaks; baseline correction
    • G01N30/8631—Peaks
    • G01N30/8637—Peak shape

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  • Life Sciences & Earth Sciences (AREA)
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Abstract

The present invention provides a kind of fault detection method of VOC continuous exhaust gas analyses device, and the VOC continuous exhaust gas analyses device includes pre-treatment portion and gas chromatograph, and methods described includes：VOC samples are continuously analyzed；For the chromatographic peak corresponding with the object matter included in the sample detected in continuous analysis process, the area value and retention time of the adjacent chromatographic peak detected twice are respectively compared；And the area value of the chromatographic peak once detected after in the adjacent chromatographic peak detected twice is diminished more than setting by the area value of the preceding chromatographic peak once detected, when the retention time of the chromatographic peak once detected after and is diminished more than setting by the retention time of the preceding chromatographic peak once detected, judging to break down simultaneously exports failure detecting signal.A kind of VOC continuous exhaust gas analyses device is also provided.

Description

The fault detection method and VOC continuous exhaust gas analyses of VOC continuous exhaust gas analysis devices Device
Technical field
Continuously analyzed the present invention relates to gas-chromatography and continuous exhaust gas analysis technical field, more particularly to a kind of VOC give up The fault detection method and VOC continuous exhaust gas analysis devices of gas continuous analyzing device.
Background technology
Use abnormal one of the gas-chromatography in VOC (VOC) continuous exhaust gas analysis of gas chromatograph As be divided into relevant peak shape and the major class of relevant baseline two.It is abnormal as peak shape, generally occur within hangover, surpassed Before, peak value is damaged, retention time changes, peak value does not detect, overall smaller, the ghost image peak value of peak value/leave etc. is various Phenomenon.For example, Fig. 1 shows the abnormal phenomenon of several frequently seen peak shape, wherein (a) represents peak value disrepair phenomenon, (b) table Show the smaller phenomenon of peak value, (c) represents leading effect.
When carrying out gas chromatographic analysis in laboratory etc., have the reason for the exception for gas-chromatography as described above occur：(1) The experimental condition (analysis condition) being engaged with sample being adjusted by user to VOC continuous exhaust gas analysis devices is imappropriate 's；(2) occur mechanical disorder or pollution/deterioration in VOC continuous exhaust gas analyses device.Therefore, by being tested by user The adjustment of the condition or exception of the peak shape of chromatographic peak is studied because of caused by mechanical disorder or pollution/deterioration, design The exception/fault occurred in VOC continuous exhaust gas analysis devices is examined based on the Chromatographic information obtained using chromatography The scheme of survey, can be in early days to handling, so as to which problem is prevented in not extremely present in VOC continuous exhaust gas analysis devices So.
The content of the invention
Include gas chromatograph using the VOC continuous exhaust gas analyses device of gas chromatograph and sample air is directed into gas The pre-treatment portion of chromatography.
In VOC continuous exhaust gas analyses, due to the object material and condition determination of the sample of knowing measure in advance, thus gas Chromatography is the shipment in the state of being adjusted, so will not typically produce the gas of the analysis condition due to user's adjustment The exception of phase chromatogram, but the failure of gas chromatograph can occur because of caused by mechanical disorder or pollution/deterioration.At present, Have to the magnetic valve of the analysis portion from gas chromatograph in the gas chromatograph used in VOC continuous exhaust gas analyses Leakage and fid detector subtract the function that the analyzer of flame etc. is voluntarily detected extremely.
However, at present in VOC continuous exhaust gas analyses, for the pre-treatment because of caused by mechanical disorder or pollution/deterioration Unit exception/fault detect of the sample sampling in portion does not have but.Due to unit exception/failure meeting of the sample sampling of pre-treatment portion Cause the exception of the peak shape in gas chromatographic analysis, it is therefore necessary to come to pre-treatment portion from the peak shape of gas-chromatography Exception or failure carry out causal investigation, and study the countermeasure that the exception of pre-treatment portion or fault detect can be come out, will Failure prevents trouble before it happens.
In view of the above problems, it is an object of the present invention to provide a kind of fault detect of VOC continuous exhaust gas analyses device Method.Using the fault detection method of the VOC continuous exhaust gas analysis devices, the VOC being capable of detecting when in VOC continuous exhaust gas analyses The failure of the pre-treatment portion of continuous exhaust gas analysis device, it is enable in early days be disposed failure, and starts again at just Normal operating.
It is a further object to provide a kind of VOC continuous exhaust gas analyses device.The VOC continuous exhaust gas analysis devices The fault detect of the pre-treatment portion in VOC continuous exhaust gas analyses can be carried out, is enable in early days be disposed failure, And start again at normal operating.
According to an aspect of the present invention, there is provided a kind of fault detection method of VOC continuous exhaust gas analyses device, it is described VOC continuous exhaust gas analyses device includes pre-treatment portion and gas chromatograph, and methods described includes：VOC samples are continuously divided Analysis；For the chromatographic peak corresponding with the object matter included in the sample detected in continuous analysis process, difference The area value and retention time of the more adjacent chromatographic peak detected twice；And when the adjacent color detected twice The area value of the chromatographic peak once detected after in spectral peak is diminished by the area value of the preceding chromatographic peak once detected It is more than setting, and after the retention time of the chromatographic peak that once detects by the preceding chromatographic peak once detected When retention time diminishes more than setting, judging to break down simultaneously exports failure detecting signal.
Further, according to the fault detection method of above-mentioned VOC continuous exhaust gas analyses device, carried out continuously to VOC samples Before analysis, if the gas chromatograph is judged as failure being present, the gas chromatograph is adjusted to exclude the failure.
Further, included according to the fault detection method of above-mentioned VOC continuous exhaust gas analyses device, the judgement failure Judge that the pre-treatment portion breaks down.
According to another aspect of the present invention, there is provided a kind of VOC continuous exhaust gas analyses device, the VOC waste gas continuously divide Analysis apparatus includes pre-treatment portion and gas chromatograph, and the VOC continuous exhaust gas analyses device further comprises：Failure detecting section, The failure detecting section includes：Comparing section, the comparing section are directed to what is detected in continuous analysis process is carried out to VOC samples Chromatographic peak corresponding with the object matter included in the sample, it is respectively compared the adjacent chromatographic peak detected twice Area value and retention time；And breakdown determination portion, the breakdown determination portion are worked as in the adjacent chromatographic peak detected twice The area value of the chromatographic peak once detected afterwards is diminished setting by the area value of the preceding chromatographic peak once detected More than, and after the retention time of the chromatographic peak that once detects by the preceding chromatographic peak once detected reservation when Between when diminishing more than setting, judging to break down simultaneously exports failure detecting signal.
Further, according to above-mentioned VOC continuous exhaust gas analyses device, before to VOC samples continuously analyze, if described Gas chromatograph is judged as failure being present, then adjusts the gas chromatograph to exclude the failure.
Further, the pre-treatment is included determining whether according to above-mentioned VOC continuous exhaust gas analyses device, the judgement failure Break down in portion.
As described above, fault detection method and VOC waste gas using the VOC continuous exhaust gas analysis devices according to the present invention Continuous analyzing device, the failure for the pre-treatment portion being capable of detecting when in VOC continuous exhaust gas analysis devices, it is enable to early stage Failure is disposed, and starts again at normal operating, failure is prevented trouble before it happens.
Brief description of the drawings
When read in conjunction with the accompanying drawings, from following detailed description, other purposes of embodiment and further feature will Become apparent, wherein：
Fig. 1 shows the abnormal phenomenon of several frequently seen peak shape；
Fig. 2 shows the block diagram of the main composition of VOC continuous exhaust gas analysis devices according to embodiments of the present invention；
Fig. 3 shows the flow chart for being related to VOC continuous exhaust gas analyses according to embodiments of the present invention.
Embodiment
Further to illustrate present disclosure, below in conjunction with accompanying drawing, by the explanation of specific embodiment, to the present invention More deeply specifically introduce.
Fig. 2 shows the block diagram of the main composition of VOC continuous exhaust gas analyses device 1 according to embodiments of the present invention.Such as Fig. 2 institutes Show, the VOC continuous exhaust gas analyses device 1 that embodiment is provided includes pre-treatment portion 11, gas chromatograph 12 and failure detecting section 13.In VOC continuous exhaust gas analyses, gas chromatograph 12 forms the analysis portion of VOC continuous exhaust gas analyses device 1；Pre-treatment portion 11 be that pump is arranged on into the back segment of gas chromatograph 12, the structure that VOC waste gas is sucked and sampled；Failure detecting section 13 is used for Fault detect in the continuous analyses of VOC, including comparing section 131 and breakdown determination portion 132, failure detecting section 13 can be by being compiled Enter the algorithm in VOC continuous exhaust gas analyses device 1 to realize.
For the VOC continuous exhaust gas analyses device 1 shown in Fig. 2, sample sampling is carried out under condition of negative pressure.And in order to negative Sample sampling is carried out under the conditions of pressure, before analysis starts, carries out atmospheric pressure balance.Generally, the sample gas for causing sampling is carried out The continuous analysis that body turns into the stabilization of certain volume is important.
However, when pre-treatment portion 11 breaks down, such as the magnetic valve of pre-treatment portion 11 breaks down, pre-treatment portion 11 Passage blockage or pump break down, atmospheric pressure balance collapse when can cause sample sampling.And balanced for atmospheric pressure Sample sampling in the case of collapse analyzed the peak shape of detected chromatographic peak retention time can change (become It is short), and because retention time changes (shortening), while the phenomenon that peak shape diminishes can be produced.
The present inventor by research after change caused by chromatographic peak in the case that pre-treatment portion 11 breaks down, Propose the fault detection method of the pre-treatment portion 11 of the VOC continuous exhaust gas analyses device 1 based on Chromatographic information.By making With the fault detection method, can realize the exception/fault of the pre-treatment portion 11 in VOC continuous exhaust gas analyses self detects work( Can, the exception/fault of pre-treatment portion 11 is disposed so as to early stage, and normal operating is started again at, by failure Prevent trouble before it happens.
The main thought of fault detection method according to the VOC continuous exhaust gas analysis devices of the present invention is：Carrying out VOC samples Product (waste gas sample sampling) are continuously when analysis, occur when detect with included in VOC samples object material (for example, Methane) corresponding to the area value of chromatographic peak diminished more than setting by the area value of the preceding chromatographic peak once determined, and detect It is when the retention time of the chromatographic peak gone out is diminished more than setting by the retention time of the preceding chromatographic peak once determined, then automatic to judge Broken down for pre-treatment portion, and export failure detecting signal." setting " referred here to can be set, can basis The experience of the change that chromatographic peak can occur is set to it generally when pre-treatment portion breaks down.
Therefore, mainly included according to the fault detection method of the VOC continuous exhaust gas analysis devices of the present invention：To VOC samples Continuously analyzed；For the chromatogram corresponding with the object matter included in sample detected in continuous analysis process Peak, it is respectively compared the area value and retention time of the adjacent chromatographic peak detected twice；And when the adjacent color detected twice The area value of the chromatographic peak once detected after in spectral peak by the area value of the preceding chromatographic peak once detected diminish setting with On, and after the retention time of chromatographic peak that once detects diminished regulation by the retention time of the preceding chromatographic peak once detected When being worth the above, judge to break down and export failure detecting signal.
Accordingly, in the VOC continuous exhaust gas analyses device 1 shown in Fig. 2, failure detecting section 13 is continuously analyzed for VOC In fault detect, wherein, comparing section 131 be used to performing for detected in continuous analysis process with included in sample Object matter corresponding to chromatographic peak, be respectively compared the area value and retention time of the adjacent chromatographic peak detected twice, failure The area value for the chromatographic peak that determination unit 132 is used to once detect after in the adjacent chromatographic peak detected twice is once examined by preceding The area value for the chromatographic peak measured diminishes more than setting, and after the retention time of chromatographic peak that once detects by it is preceding once When the retention time of the chromatographic peak detected diminishes more than setting, judging to break down simultaneously exports failure detecting signal.
As described above, according to the fault detection method of the VOC continuous exhaust gas analysis devices of the present invention mainly by by VOC The adjacent chromatographic peak detected twice that sample is carried out in continuous analysis process is compared to judge VOC continuous exhaust gas analyses Whether the pre-treatment portion in device there is exception/fault.Therefore, the event for guarantee using above-mentioned VOC continuous exhaust gas analyses device Hinder the accuracy of the detection of the exception/fault of detection method progress pre-treatment portion, detected when VOC samples are carried out and continuously analyzed Exception should be not present in first chromatographic peak arrived, that is, entering to VOC samples in above-mentioned fault detection method is proceeded by Before the continuous analysis of row, existing failure is not answered in VOC continuous exhaust gas analysis devices, otherwise can cause VOC continuous exhaust gas analyses The inaccuracy of the fault detect of device.
As described above, in VOC continuous exhaust gas analyses device 1 it is possible that failure include gas chromatograph 12 The failure of failure and pre-treatment portion 11.For the failure of gas chromatograph 12, generally used in VOC continuous exhaust gas analyses Gas chromatograph has self abnormal detection function, therefore, utilizes the self detecting function of gas chromatograph 12, you can realizes To the malfunction elimination of gas chromatograph 12.In addition, for the malfunction elimination of pre-treatment portion 11, by the description to Fig. 3 below come Illustrate.
Fig. 3 shows the flow chart for being related to VOC continuous exhaust gas analyses according to embodiments of the present invention.
First, in step S101, judge whether gas chromatograph 12 self is detected as failure/exception.Work as gas phase Chromatograph 12 is judged as failure being wherein present, i.e. has failure detecting signal when being output (in step S101 be), then needs Gas chromatograph 12 is adjusted with fix a breakdown (step S102).Here, in any other step in carrying out Fig. 3, as long as Gas chromatograph 12 self detects failure/exception, i.e. during output failure detecting signal, flow is back to step S101。
When failure is not present in gas chromatograph 12, i.e. no failure detecting signal is output (no in step S101), Next in step s 103, judge during continuous exhaust gas analysis is carried out before, whether be detected in pre-treatment portion 11 Failure to be present.If pre-treatment portion 11 is judged as existing failure (in step S103 be) in step s 103, adjust Pre-treatment portion 11 is with fix a breakdown (step S104).Here, the judgement in step S103 for example can by breakdown determination portion 132 Carry out.Because during continuous exhaust gas analysis is carried out before, breakdown determination portion 132 be used to judging in pre-treatment portion 11 whether Break down, so using breakdown determination portion 132 judge in step S103 more convenient.It is of course also possible to use its Its part carries out the judgement in step S103, and the present invention is not construed as limiting herein.Here, if proceeding by waste gas currently Before continuous analysis, VOC continuous exhaust gas analyses device 1 is also not used for carrying out continuous exhaust gas analysis, then sentences in step s 103 Determine pre-treatment portion 11 and failure is not present, because the meeting before continuous exhaust gas analysis is used for of VOC continuous exhaust gas analyses device 1 Be not in failure when can ensure and carry out first time continuous exhaust gas analysis by installation and debugging.
Next, when judging failure is not present in pre-treatment portion 11 in step S103 (no in step S103), in step In rapid S105, start the continuous analysis of the currently VOC samples to sampling.As described above, pass through step S101 and step S103, energy It is enough to cause before currently to the continuous analysis of VOC samples, ensure that in VOC continuous exhaust gas analyses device 1 be not in failure, from And ensure the accuracy of the detection of the exception/fault of the pre-treatment portion 11 in VOC continuous exhaust gas analyses.
Next, in step s 106, for detected during step S105 continuous exhaust gas analysis and sample Included in object matter corresponding to chromatographic peak, when being respectively compared area value and the reservation of the adjacent chromatographic peak detected twice Between.
Afterwards, in step s 107, the result in step S106, after judging in the adjacent chromatographic peak detected twice Whether the area value for the chromatographic peak that one-time detection goes out is diminished more than setting by the area value of the preceding chromatographic peak once detected, and Whether the retention time of the chromatographic peak once detected after and is diminished regulation by the retention time of the preceding chromatographic peak once detected It is more than value.The area value for the chromatographic peak for such as occurring once detecting after in the adjacent chromatographic peak detected twice is by preceding one-time detection The area value of the chromatographic peak gone out diminishes more than setting, and after the retention time of chromatographic peak that once detects once examined by preceding The situation that the retention time for the chromatographic peak measured diminishes more than setting, breakdown determination portion 132 then judge that pre-treatment portion 11 occurs Failure simultaneously exports failure detecting signal.When pre-treatment portion 11 is judged as breaking down during continuous exhaust gas analysis, it is Ensure the accuracy of analysis, it is necessary to stop current continuous exhaust gas analysis, and exclude the failure of pre-treatment portion 11, under starting Continuous exhaust gas analysis once.
Therefore, flow is back to step S103, and pre-treatment portion 11 is judged as the (step that breaks down in step s 103 Suddenly S103's is).Now, the failure (step S104) of pre-treatment portion 11 is excluded by adjusting pre-treatment portion 11, with extensive as early as possible The normal operation of multiple VOC continuous exhaust gas analyses device 1.
In view of the foregoing it is apparent that the fault detection method according to VOC continuous exhaust gas analyses device provided by the present invention And VOC continuous exhaust gas analysis devices, the failure for the pre-treatment portion being capable of detecting when in VOC continuous exhaust gas analysis devices, so as to Make it possible in early days be disposed failure, and start again at normal operating, failure is prevented trouble before it happens.
Although by being described in conjunction with specific embodiments to the present invention, for the ordinary artisan of this area, Many replacements, modification and change according to making after mentioned above will be apparent.Therefore, when such replacement, modification When being fallen into change within the spirit and scope of appended claims, it should be included in the present invention.

Claims (6)

  1. A kind of 1. fault detection method of VOC continuous exhaust gas analyses device, it is characterised in that the VOC continuous exhaust gas analyses dress Put includes including pre-treatment portion and gas chromatograph, methods described：
    VOC samples are continuously analyzed；
    For the chromatographic peak corresponding with the object matter included in the sample detected in continuous analysis process, difference The area value and retention time of the more adjacent chromatographic peak detected twice；And
    The area value of the chromatographic peak once detected after in the adjacent chromatographic peak detected twice is once examined by preceding The area value for the chromatographic peak measured diminishes more than setting, and after the retention time of the chromatographic peak that once detects When being diminished more than setting by the retention time of the preceding chromatographic peak once detected, judging to break down simultaneously exports failure inspection Go out signal.
  2. 2. the fault detection method of VOC continuous exhaust gas analyses device as claimed in claim 1, it is characterised in that
    Before to VOC samples continuously analyze, if the gas chromatograph is judged as failure being present, the gas is adjusted Chromatography is to exclude the failure.
  3. 3. the fault detection method of VOC continuous exhaust gas analyses device as claimed in claim 1 or 2, it is characterised in that
    The judgement failure includes determining whether that the pre-treatment portion breaks down.
  4. 4. a kind of VOC continuous exhaust gas analyses device, it is characterised in that the VOC continuous exhaust gas analyses device includes pre-treatment portion And gas chromatograph, the VOC continuous exhaust gas analyses device further comprise：
    Failure detecting section, the failure detecting section include：
    Comparing section, the comparing section in continuous analysis process is carried out to VOC samples for detecting and institute in the sample Comprising object matter corresponding to chromatographic peak, when being respectively compared area value and the reservation of the adjacent chromatographic peak detected twice Between；And
    Breakdown determination portion, the breakdown determination portion once detect described after in the adjacent chromatographic peak detected twice The area value of chromatographic peak is diminished more than setting by the area value of the preceding chromatographic peak once detected, and rear one-time detection When the retention time of the chromatographic peak gone out is diminished more than setting by the retention time of the preceding chromatographic peak once detected, Judge to break down and export failure detecting signal.
  5. 5. VOC continuous exhaust gas analyses device as claimed in claim 4, it is characterised in that
    Before to VOC samples continuously analyze, if the gas chromatograph is judged as failure being present, the gas is adjusted Chromatography is to exclude the failure.
  6. 6. the VOC continuous exhaust gas analysis devices as described in claim 4 or 5, it is characterised in that
    The judgement failure includes determining whether that the pre-treatment portion breaks down.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112888943A (en) * 2018-08-28 2021-06-01 Abb瑞士股份有限公司 Method and control system for detecting faults associated with gas chromatography devices in a process plant

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000266737A (en) * 1999-03-19 2000-09-29 Ube Kagaku Bunseki Center:Kk Structure analyzer for unknown substance
US20110302997A1 (en) * 2006-12-01 2011-12-15 Hitachi High-Technologies Corporation Liquid chromatograph apparatus
CN102486471A (en) * 2010-12-03 2012-06-06 河北省电力研究院 Oil chromatogram diagnosis method of transformer internal fault and defect degree
CN103278715A (en) * 2013-05-16 2013-09-04 广东电网公司 Electrical equipment testing method
CN104297504A (en) * 2014-10-22 2015-01-21 上海申腾信息技术有限公司 Automatic gas chromatographic control system
CN205175977U (en) * 2015-10-27 2016-04-20 江门市植保有限公司 Take high -efficient gas chromatograph of antifouling device
CN105606745A (en) * 2015-11-27 2016-05-25 中山大学惠州研究院 Detection method for odor substances in exhaust gas of perfume and essence industry

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000266737A (en) * 1999-03-19 2000-09-29 Ube Kagaku Bunseki Center:Kk Structure analyzer for unknown substance
US20110302997A1 (en) * 2006-12-01 2011-12-15 Hitachi High-Technologies Corporation Liquid chromatograph apparatus
CN102486471A (en) * 2010-12-03 2012-06-06 河北省电力研究院 Oil chromatogram diagnosis method of transformer internal fault and defect degree
CN103278715A (en) * 2013-05-16 2013-09-04 广东电网公司 Electrical equipment testing method
CN104297504A (en) * 2014-10-22 2015-01-21 上海申腾信息技术有限公司 Automatic gas chromatographic control system
CN205175977U (en) * 2015-10-27 2016-04-20 江门市植保有限公司 Take high -efficient gas chromatograph of antifouling device
CN105606745A (en) * 2015-11-27 2016-05-25 中山大学惠州研究院 Detection method for odor substances in exhaust gas of perfume and essence industry

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘兴隆 等: "大气中挥发性有机物在线监测系统", 《环境科学学报》 *
王宇成 主编: "《最新色谱分析检测方法及应用技术实用手册 第4卷》", 31 December 2004, 银声音像出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112888943A (en) * 2018-08-28 2021-06-01 Abb瑞士股份有限公司 Method and control system for detecting faults associated with gas chromatography devices in a process plant

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