CN109521127A - A kind of qualitative and quantitative analysis method carrying out Odor Evaluations to single odoring substance - Google Patents
A kind of qualitative and quantitative analysis method carrying out Odor Evaluations to single odoring substance Download PDFInfo
- Publication number
- CN109521127A CN109521127A CN201811593232.7A CN201811593232A CN109521127A CN 109521127 A CN109521127 A CN 109521127A CN 201811593232 A CN201811593232 A CN 201811593232A CN 109521127 A CN109521127 A CN 109521127A
- Authority
- CN
- China
- Prior art keywords
- substance
- sack
- intensity
- odoring substance
- odour intensity
- 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
Links
Classifications
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
-
- 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
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
-
- 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
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a kind of qualitative and quantitative analysis method for carrying out Odor Evaluations to single odoring substance, includes the following steps: that S1. determines to smell and distinguish threshold value: determining that smelling for single odoring substance distinguishes threshold value by sack method；S2.GCO analysis: gas collecting is carried out to the sack of S1 varying strength, and substance separation is carried out with gas-chromatography, gas after separation is divided into two-way, material concentration-time spectrogram is obtained through mass spectrograph all the way, it is smelt all the way and distinguishes that instrument distinguishes odour intensity by manually smelling, and recording odor strength versus time spectrogram, obtain the relationship of odour intensity and odorousness；S3. it will be smelt and distinguish the odour intensity of instrument record and the strength matching of sack method record, based on the intensity of sack method record, the relationship of the two is modified, to directly obtain the corresponding relationship of odour intensity and odorousness by GCO, the evaluation of odor types and odour intensity is carried out to single odoring substance.This method can the relationship between the odour intensity and odorousness to single odoring substance carry out quantitative analysis.Smell can be carried out by this method to trace to the source, and odoring substance can also be quantified and be managed.
Description
Technical field
The invention belongs to Odor Evaluations technical fields, carry out smell to single odoring substance more particularly, to one kind and comment
The qualitative and quantitative analysis method of valence.
Background technique
Due to the requirement of car light, energy-saving etc., application of the high molecular material in automotive upholstery is further extensive.
Research shows that interior main parts size such as instrument board and auxiliary fasia console assembly, seat assembly etc. and other leathers or plastics ornaments
Volatile organic substance (VOC) such as formaldehyde, benzene,toluene,xylene can be released in use.These VOC are mainly
Since high molecular material has used many solvents and auxiliary agent small molecule and in use material in production and process
Caused by the degradation or aging of material.Since automobile sealed property is good, inner space is narrow, air mass flow is limited, interior VOC
The exceeded harmfulness caused by human body is just bigger.Odor perception is the most intuitive psychological feelings of human body, and more and more people start
Smell research is paid close attention to, the material of low VOC, low smell are continually developed.
At this stage, i.e. three point gas of various sensory evaluation methods is mainly based upon to the Odor Evaluations of automotive upholstery both at home and abroad
Taste bag comparison method, components sack method and bottle method.Carrying out subjective assessment to smell by special Odor Evaluations person is existing rank
A kind of Odor Evaluations mode that section is mainly approved.The source of smell has very much, and different materials and processing technology can all cause most
The difference of whole smell.The daily smell smelt is the synthesis of a variety of odoring substances, and this kind of subjective evaluation method can not be to single
Odoring substance carries out qualitative and quantitative analysis.Patent CN201710994372.4 discloses a kind of car inside peculiar smell of man-computer cooperation
Source appraisal procedure, using combined gas chromatography mass spectrometry plus olfactometry (GC-MS/O) can to single odoring substance into
Row is qualitative, the source of peculiar smell in in-vehicle air can be screened by this method, but it is only with the method for GCO, to car
Smell substance in air is screened, and the odor evaluations method of human body subjectivity is not bound with, not to single odoring substance
Relationship between odorousness and odour intensity carries out quantitative analysis.Due to the difference of smelling mode, human body distinguishes that instrument is made by smelling
Evaluation result out is not consistent with the result made by the methods of bottle method, sack method.So the knot obtained according to GCO merely
Fruit and daily Odor Evaluations result used are inconsistent.And the research is only simply fixed to the progress of single odoring substance
Property, the subjective assessment for how influencing people for single odoring substance also require further study, and how to establish single smell object
The odour intensity of matter and the quantitative relationship of odorousness also need further to analyze and discuss.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the method for above-mentioned existing GCO, it is not bound with human body subjectivity
Odor evaluations method, can not the relationship between the odorousness and odour intensity to single odoring substance carry out lacking for quantitative analysis
It falls into and insufficient；Using the method for GCO technology combination human body subjective assessment, provide a kind of to single odoring substance progress Odor Evaluations
Method, establish the odorousness of single odoring substance and the quantitative relationship of odour intensity, thus preferably to odoring substance into
Row quantization and control.
The purpose of the present invention is to provide a kind of qualitative and quantitative analysis methods that Odor Evaluations are carried out to single odoring substance.
Above-mentioned purpose of the invention is to give realization by the following technical programs:
A kind of qualitative and quantitative analysis method carrying out Odor Evaluations to single odoring substance, includes the following steps:
S1. it determines to smell and distinguishes threshold value: determining that smelling for single odoring substance distinguishes threshold value by sack method；
S2.GCO analysis: carrying out gas collecting to the sack of S1 varying strength, and carry out substance separation with gas-chromatography, point
Gas from after is divided into two-way, obtains material concentration-time spectrogram through mass spectrograph all the way, is smelt distinguish that instrument distinguishes gas by manually smelling all the way
Taste intensity, and recording odor strength versus time spectrogram obtain the relationship for smelling the odour intensity and odorousness of distinguishing instrument record；
S3. it will be smelt and distinguish the odour intensity of instrument record and the strength matching of sack method record, the intensity recorded with sack method
Based on, the relationship of the two is modified, to directly obtain the odour intensity and odorousness of sack method record by GCO
Corresponding relationship, to single odoring substance carry out odor types and odour intensity evaluation.
The present invention by GCO technology is combined establish with human body subjective assessment it is a kind of to single odoring substance into
The qualitative and quantitative analysis method of row Odor Evaluations, overcome due to the difference and standard of smelling mode it is different caused by GCO side
Method can not be suitable for the problem of daily Odor Evaluations result used.The present invention passes through first to be determined with the methods of conventional bags method
Threshold value is distinguished in smelling for single odoring substance；Then the gas of above-mentioned varying strength odor threshold (odour intensity) is carried out by GCO
Test, obtains the relationship of odour intensity and odorousness under GCO test method；The single gas finally measured with conventional bags method etc.
Based on the intensity of body substance, the relationship of the two is modified, so as to directly obtain sack method recording odor by GCO
The corresponding relationship of intensity and odorousness carries out the evaluation of odor types and odour intensity to single odoring substance.
Preferably, S1 is to smell the method for distinguishing diluent materials concentration step by step by 3 points, by valuation officer by subjective assessment, to difference
The odoring substance of concentration carries out odour intensity and odor types are judged, and thereby determines that human body distinguishes threshold value to smelling for single substance.
Preferably, intensity described in S2 is perception (1.5~2), cognition (2.5~3), uncomfortable (3.5~4) three kinds of intensity.
Specifically, due in GCO is tested, by the way that according to certain split ratio, a part of gas enters GC-MS, another
Portion gas, which enters to smell, distinguishes instrument, therefore the concentration of the concentration measured in GCO and real gas is caused to have a certain difference, therefore
The material concentration tested GCO is needed to be modified, revised concentration is to smell the exit concentration for distinguishing instrument.
Correction formula C=m/s*1000 is wherein: C- smells the exit concentration for distinguishing instrument, unit mg/m3；Substance in m- adsorption tube
Actual content, unit μ g；S- smells the rate of discharge for distinguishing instrument, Unit/mL.
Preferably, the single odoring substance is n-butanol, 2- butanone or acetophenone.
The qualitative and quantitative analysis side that any of the above-described carries out Odor Evaluations to single odoring substance is also claimed in the present invention
Application of the method in the tracing to the source and/or quantify, manage of odoring substance.
Compared with prior art, the invention has the following advantages:
The present invention provides a kind of qualitative and quantitative analysis methods that Odor Evaluations are carried out to single odoring substance, by will be single
The GCO test of one substance combines sack judicial entity subjective assessment to may be implemented using the amendment of GCO gas concentration to single object
The quantitative analysis of odorousness of the matter in sack, and odour intensity of the substance in sack is determined with this.Further, it is also possible to solve
The source of odoring substance can not be determined in certainly current mixed gas, thus realize to odoring substance trace to the source and quantify manage.
Detailed description of the invention
Fig. 1 is the gentle taste strength versus time spectrogram of material concentration-time spectrogram of n-butanol GCO test；1 generation of curve in Fig. 1
The Concentration-time spectrogram of table substance, curve 2 represent odour intensity-time spectrogram.
Fig. 2 is acetophenone in the spectrogram of the GCO material concentration tested and odour intensity, and wherein gas concentration is respectively
40ppm, 300ppm and 1000ppm.
Specific embodiment
The present invention is further illustrated below in conjunction with Figure of description and specific embodiment, but embodiment is not to the present invention
It limits in any form.Unless stated otherwise, the present invention uses reagent, method and apparatus routinely try for the art
Agent, method and apparatus.
Unless stated otherwise, following embodiment agents useful for same and material are commercially available.
Embodiment 1
A kind of qualitative and quantitative analysis method carrying out Odor Evaluations to single odoring substance, includes the following steps:
(1) sack method, which determines to smell, distinguishes threshold value
The odoring substance single to certain injects the odoring substance of known concentration in PVF bags, by 3 points smell the method for distinguishing by
Grade diluent materials concentration carries out odour intensity and smell class to the odoring substance of various concentration by valuation officer by subjective assessment
Type is judged, and thereby determines that human body distinguishes threshold value to smelling for single substance, this, which is smelt, distinguishes threshold value energy actual response people to the master of the smell
Perception by and smell manage important evidence.Wherein the evaluation reference VDA 270 of odour intensity is carried out, corresponding grading mark
Standard is shown in Table 1.
The evaluation criterion of 1 odour intensity of table
| Odor intensity scale | Strength grade description |
| 1 | Odorlessness |
| 2 | Imperceptible smell |
| 3 | The smell that can obviously distinguish |
| 4 | The interference smell that can obviously perceive |
| 5 | Strong interference smell |
| 6 | Insufferable smell |
Sack method, which is smelt, distinguishes that the concrete operations of threshold value are as follows:
1) prepare: preparing a series of PVF bags of number consecutivelies and thereto the smell object of any known high concentration of PVF bags of injection
Matter mark product (inject pungent levels) for the first time；
2) it inflates: the PVF bag equipped with mark product is accurately filled with 50% high pure nitrogen；
3) it heats: in constant temperature oven or VOC the test storehouse for being placed in set temperature for above-mentioned PVF bags, balancing 2h；
4) evaluate: smell bag is placed to room temperature, valuation officer need to by equipped with highly concentrated scale product PVF bag to scale by
One dilution, until valuation officer can not perceive smell, is described odor types and odour intensity by valuation officer, and therefrom
It selects to smell and distinguishes that threshold value is the PVF bag for perceiving (1.5~2), the three types for recognizing (2.5~3), uncomfortable (3.5~4).
By taking n-butanol as an example, n-butanol standard liquid is injected in sack, makes n-butanol gas concentration 10mg/m in sack3,
The odour intensity in sack is evaluated by smelling the person of distinguishing；Then it dilutes the gas concentration in sack step by step again, and successively evaluates
Odour intensity.The research of sack method olfact is carried out to 2- butanone, acetophenone in this way, dependence test the results are shown in Table 2.It is right
In different substances, due to the difference of olfact, in identical odour intensity, the note mark concentration in sack is significantly different.
The relationship of note the mark concentration and odour intensity of 2 sack method of table
(2) GCO is analyzed
It is the PVF bag for perceiving (1.5~2), recognizing (2.5~3), uncomfortable (3.5~4) three kinds of intensity by Odor Evaluations result
Data acquisition is carried out, the sample of acquisition first carries out substance separation with gas-chromatography (GC), and the gas after separation is divided into two-way, all the way
Material concentration-time spectrogram is obtained through mass spectrograph (MS), is smelt distinguish that instrument distinguishes odour intensity by manually smelling all the way, and recording odor is strong
Degree-time spectrogram.At this point it is possible to obtain smelling the relationship of the odour intensity and odorousness of distinguishing instrument record.
Fig. 1 is the gentle taste strength versus time spectrogram of material concentration-time spectrogram of n-butanol GCO test, by by concentration-
Time spectrogram is overlapped with odour intensity-time spectrogram, the spectrogram of available material concentration and odour intensity.
Fig. 2 is spectrogram of the acetophenone in the GCO material concentration tested and odour intensity, and wherein gas concentration is respectively
40ppm, 300ppm and 1000ppm.From fig. 2 it can be seen that with the increase of material concentration, odour intensity increases therewith.
(3) GCO analysis and the result of subjective assessment compare
The odor types that two methods obtain are identical, for will through be smelt distinguish instrument record odour intensity and sack method record it is strong
The relationship of the two is modified, based on the intensity of sack method record so as to directly be obtained by GCO by degree matching
Corresponding relationship of the odour intensity (intensity of sack method record) with odorousness, it is gentle to carry out odor types to single odoring substance
The evaluation of taste intensity.
Due in GCO is tested, by the way that according to certain split ratio, a part of gas enters GC-MS, another part gas
Instrument is distinguished into smelling, therefore the concentration of the concentration measured in GCO and real gas is caused to have a certain difference, it is therefore desirable to right
The material concentration of GCO test is modified, and revised concentration is to smell the exit concentration for distinguishing instrument.
Correction formula: C=m/s*1000
Wherein: C- smells the exit concentration for distinguishing instrument, unit mg/m3；
The actual content of substance in m- adsorption tube, unit μ g；
S- smells the rate of discharge for distinguishing instrument, Unit/mL.
When different odor intensity, n-butanol, 2- butanone and acetophenone are distinguished in the note mark concentration of sack method and revised smell
Instrument exit concentration, which summarizes, is listed in table 3, it can be seen that is evaluated using sack method and GCO odour intensity, when odour intensity phase
Meanwhile the note mark concentration of sack method distinguishes approximate 10 times of the relationship of instrument exit concentration with revised smell, certainly for different objects
Matter, the multiple proportion also require further study.
The relationship of the exit concentration for distinguishing instrument and sack method note mark concentration is smelt when 3 identical odour intensity of table
According to the above research it can be found that being adopted by the way that the GCO test of single substance is combined sack judicial entity subjective assessment
With the amendment of GCO gas concentration, the quantitative analysis of the odorousness to single substance in sack may be implemented, and determined with this
Odour intensity of the substance in sack.Further, it is also possible to the source that odoring substance can not be determined in current mixed gas is solved, from
And realize to odoring substance trace to the source and quantify manage.
Claims (6)
1. a kind of qualitative and quantitative analysis method for carrying out Odor Evaluations to single odoring substance, which is characterized in that including walking as follows
It is rapid:
S1. it determines to smell and distinguishes threshold value: determining that smelling for single odoring substance distinguishes threshold value by sack method；
S2.GCO analysis: gas collecting is carried out to the sack of S1 varying strength, and carries out substance separation with gas-chromatography, after separation
Gas be divided into two-way, all the way through mass spectrograph obtain material concentration-time spectrogram, smelt distinguish that instrument distinguishes that smell is strong by manually smelling all the way
Degree, and recording odor strength versus time spectrogram obtain the relationship for smelling the odour intensity and odorousness of distinguishing instrument record；
S3. it will be smelt and distinguish the odour intensity of instrument record and the strength matching of sack method record, using the intensity of sack method record as base
The relationship of the two is modified by plinth, to directly obtain the odour intensity of sack method record and pair of odorousness by GCO
It should be related to, the evaluation of odor types and odour intensity is carried out to single odoring substance.
2. the method according to claim 1, wherein S1 is by 3 points to smell the method for distinguishing diluent materials concentration step by step,
By valuation officer by subjective assessment, odour intensity is carried out to the odoring substance of various concentration and odor types are judged, is thereby determined that
Human body distinguishes threshold value to smelling for single substance.
3. the method according to claim 1, wherein intensity described in S2 be perception (1.5~2), cognition (2.5~
3), uncomfortable (3.5~4) three kinds of intensity.
4. the method according to claim 1, wherein the odorousness of S2 GCO test is carried out by following formula
Correct C=m/s*1000 wherein: C- smells the exit concentration for distinguishing instrument, unit mg/m3；The actual content of substance, unit in m- adsorption tube
μg；S- smells the rate of discharge for distinguishing instrument, Unit/mL.
5. the method according to claim 1, wherein the single odoring substance is n-butanol, 2- butanone or benzene
Ethyl ketone.
6. application of any one of Claims 1 to 5 the method in the tracing to the source and/or quantify, manage of odoring substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593232.7A CN109521127B (en) | 2018-12-25 | 2018-12-25 | Qualitative and quantitative analysis method for evaluating odor of single odor substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593232.7A CN109521127B (en) | 2018-12-25 | 2018-12-25 | Qualitative and quantitative analysis method for evaluating odor of single odor substance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109521127A true CN109521127A (en) | 2019-03-26 |
| CN109521127B CN109521127B (en) | 2021-11-26 |
Family
ID=65796798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811593232.7A Active CN109521127B (en) | 2018-12-25 | 2018-12-25 | Qualitative and quantitative analysis method for evaluating odor of single odor substance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109521127B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658305A (en) * | 2019-09-12 | 2020-01-07 | 中汽研汽车检验中心（天津）有限公司 | Method for positively designing grade of odor substance in vehicle |
| CN111397996A (en) * | 2020-06-08 | 2020-07-10 | 中汽研汽车零部件检验中心(宁波)有限公司 | Odor standard gas preparation method based on odor intensity concentration relation |
| CN111812239A (en) * | 2020-07-10 | 2020-10-23 | 广电计量检测（天津）有限公司 | Method for determining key odor substances in shoes |
| CN113125509A (en) * | 2021-04-15 | 2021-07-16 | 浙江大学 | Human body odor detection and masking effect evaluation method based on biological mixing system |
| CN113984960A (en) * | 2021-09-24 | 2022-01-28 | 中汽研汽车检验中心（天津）有限公司 | Method for researching odor characteristics of multi-component gas in dynamic mixing mode |
| CN114264770A (en) * | 2021-08-23 | 2022-04-01 | 中汽研汽车检验中心（天津）有限公司 | Odor evaluation method based on map matching |
| CN114441650A (en) * | 2020-10-30 | 2022-05-06 | 海宁森德皮革有限公司 | Leather odor tracing analysis and control method |
| CN114487223A (en) * | 2022-01-19 | 2022-05-13 | 青岛科大新橡塑检测服务有限公司 | Method for measuring VOC content in EPS foam |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297434A (en) * | 2014-10-29 | 2015-01-21 | 重庆长安汽车股份有限公司 | Odor evaluation method for automotive interior parts |
| WO2015022853A1 (en) * | 2013-08-12 | 2015-02-19 | アイシン・エィ・ダブリュ株式会社 | Drive device for vehicle |
| CN107796890A (en) * | 2017-10-23 | 2018-03-13 | 奇瑞汽车股份有限公司 | Peculiar smell source appraisal procedure in a kind of Automobile of man-computer cooperation |
| CN108918691A (en) * | 2018-03-21 | 2018-11-30 | 北京卡达克数据有限公司 | A kind of in-car smell substance determines method and in-car smell substance source tracing method |
-
2018
- 2018-12-25 CN CN201811593232.7A patent/CN109521127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015022853A1 (en) * | 2013-08-12 | 2015-02-19 | アイシン・エィ・ダブリュ株式会社 | Drive device for vehicle |
| CN104297434A (en) * | 2014-10-29 | 2015-01-21 | 重庆长安汽车股份有限公司 | Odor evaluation method for automotive interior parts |
| CN107796890A (en) * | 2017-10-23 | 2018-03-13 | 奇瑞汽车股份有限公司 | Peculiar smell source appraisal procedure in a kind of Automobile of man-computer cooperation |
| CN108918691A (en) * | 2018-03-21 | 2018-11-30 | 北京卡达克数据有限公司 | A kind of in-car smell substance determines method and in-car smell substance source tracing method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658305A (en) * | 2019-09-12 | 2020-01-07 | 中汽研汽车检验中心（天津）有限公司 | Method for positively designing grade of odor substance in vehicle |
| CN111397996A (en) * | 2020-06-08 | 2020-07-10 | 中汽研汽车零部件检验中心(宁波)有限公司 | Odor standard gas preparation method based on odor intensity concentration relation |
| CN111812239A (en) * | 2020-07-10 | 2020-10-23 | 广电计量检测（天津）有限公司 | Method for determining key odor substances in shoes |
| CN114441650A (en) * | 2020-10-30 | 2022-05-06 | 海宁森德皮革有限公司 | Leather odor tracing analysis and control method |
| CN114441650B (en) * | 2020-10-30 | 2023-06-06 | 海宁森德皮革有限公司 | Genuine leather smell tracing analysis and control method |
| CN113125509A (en) * | 2021-04-15 | 2021-07-16 | 浙江大学 | Human body odor detection and masking effect evaluation method based on biological mixing system |
| CN114264770A (en) * | 2021-08-23 | 2022-04-01 | 中汽研汽车检验中心（天津）有限公司 | Odor evaluation method based on map matching |
| CN113984960A (en) * | 2021-09-24 | 2022-01-28 | 中汽研汽车检验中心（天津）有限公司 | Method for researching odor characteristics of multi-component gas in dynamic mixing mode |
| CN114487223A (en) * | 2022-01-19 | 2022-05-13 | 青岛科大新橡塑检测服务有限公司 | Method for measuring VOC content in EPS foam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109521127B (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109521127A (en) | A kind of qualitative and quantitative analysis method carrying out Odor Evaluations to single odoring substance | |
| Giungato et al. | Synergistic approaches for odor active compounds monitoring and identification: State of the art, integration, limits and potentialities of analytical and sensorial techniques | |
| CN108918691B (en) | Method for determining odor substances in vehicle and method for tracing odor substances in vehicle | |
| Biasioli et al. | Direct-injection mass spectrometry adds the time dimension to (B) VOC analysis | |
| Bulliner IV et al. | Characterization of livestock odors using steel plates, solid-phase microextraction, and multidimensional gas chromatography–mass spectrometry–olfactometry | |
| Fisher et al. | Framework for the use of odour wheels to manage odours throughout wastewater biosolids processing | |
| Alonso et al. | Analytical challenges in breath analysis and its application to exposure monitoring | |
| Richter et al. | The application of instrumental technique for the evaluation of odoriferous volatiles from saliva and breath | |
| JP6957882B2 (en) | Method for producing simulated odor composition | |
| CN102680627A (en) | Method for analyzing and identifying key aromatic substances in tobacco leaf | |
| CN103983721B (en) | Method for determination of cut cigarette tobacco preparation charging uniformity based on multi-index characteristic substance weight determination | |
| JPH11500821A (en) | Method and apparatus for detecting aroma and odor substances and applications | |
| Kamarulzaman et al. | Quantification of VOCs and the development of odour wheels for rubber processing | |
| DE102012224172A1 (en) | Method for detecting urine odor from air conditioners Reproducing the urine odor and producing a corresponding urine odor composition | |
| Perraud et al. | Challenges associated with the sampling and analysis of organosulfur compounds in air using real-time PTR-ToF-MS and offline GC-FID | |
| CN106770707B (en) | The screening method of volatile organic matter in a kind of quick-fried pearl of cigarette filter | |
| CN106404884A (en) | Method for quickly evaluating quality consistency of flavors and fragrances of volatile cigarettes by HS-IMR-MS | |
| CN108918724A (en) | A kind of detection method of Synthetic Leather characteristic odor | |
| CN106053653A (en) | Analytical method for identifying flavor characteristic index compound of chilli oil | |
| Dong et al. | Identification and analysis of odor-active substances from PVC-overlaid MDF | |
| Garrido-Delgado et al. | Enhancing sensitivity and selectivity in the determination of aldehydes in olive oil by use of a Tenax TA trap coupled to a UV-ion mobility spectrometer | |
| CN109061017A (en) | A kind of evaluation method of perfuming cigarette uniformity | |
| Wang et al. | Identifying the tobacco related free radicals by UPCC-QTOF-MS with radical trapping method in mainstream cigarette smoke | |
| Lias et al. | A study on the application of electronic nose coupled with DFA and statistical analysis for evaluating the relationship between sample volumes versus sensor intensity of agarwood essential oils blending ratio | |
| CN110020604A (en) | A kind of quality of vegetable detection method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 511400 150, No. 8, Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Radio and TV Measurement and Testing Group Co.,Ltd. Address before: No. 163, xipingyun Road, Huangpu Avenue, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. |