CN107328718A - A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent - Google Patents
A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent Download PDFInfo
- Publication number
- CN107328718A CN107328718A CN201710399487.9A CN201710399487A CN107328718A CN 107328718 A CN107328718 A CN 107328718A CN 201710399487 A CN201710399487 A CN 201710399487A CN 107328718 A CN107328718 A CN 107328718A
- Authority
- CN
- China
- Prior art keywords
- tobacco
- essence
- sample
- flavouring essence
- glyceryl triacetate
- 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.)
- Pending
Links
- 241000208125 Nicotiana Species 0.000 title claims abstract description 54
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 54
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 26
- 235000013773 glyceryl triacetate Nutrition 0.000 title claims abstract description 22
- 239000001087 glyceryl triacetate Substances 0.000 title claims abstract description 20
- 229960002622 triacetin Drugs 0.000 title claims abstract description 20
- 239000002904 solvent Substances 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000000341 volatile oil Substances 0.000 claims description 4
- 235000005979 Citrus limon Nutrition 0.000 claims description 3
- 244000131522 Citrus pyriformis Species 0.000 claims description 3
- 239000000796 flavoring agent Substances 0.000 claims description 3
- 235000019634 flavors Nutrition 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- WUOACPNHFRMFPN-SECBINFHSA-N (S)-(-)-alpha-terpineol Chemical compound CC1=CC[C@@H](C(C)(C)O)CC1 WUOACPNHFRMFPN-SECBINFHSA-N 0.000 claims description 2
- WAPNOHKVXSQRPX-UHFFFAOYSA-N 1-phenylethanol Chemical compound CC(O)C1=CC=CC=C1 WAPNOHKVXSQRPX-UHFFFAOYSA-N 0.000 claims description 2
- 240000008554 Aloysia triphylla Species 0.000 claims description 2
- 235000013668 Aloysia triphylla Nutrition 0.000 claims description 2
- 240000006927 Foeniculum vulgare Species 0.000 claims description 2
- 235000004204 Foeniculum vulgare Nutrition 0.000 claims description 2
- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 claims description 2
- 229940088601 alpha-terpineol Drugs 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 238000012850 discrimination method Methods 0.000 claims 8
- IGIDLTISMCAULB-UHFFFAOYSA-N 3-methylvaleric acid Chemical class CCC(C)CC(O)=O IGIDLTISMCAULB-UHFFFAOYSA-N 0.000 claims 1
- 241000213006 Angelica dahurica Species 0.000 claims 1
- 241000522254 Cassia Species 0.000 claims 1
- 238000004445 quantitative analysis Methods 0.000 abstract description 3
- 238000004451 qualitative analysis Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- CLBRCZAHAHECKY-UHFFFAOYSA-N [Co].[Pt] Chemical compound [Co].[Pt] CLBRCZAHAHECKY-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001819 mass spectrum Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KMZHZAAOEWVPSE-UHFFFAOYSA-N 2,3-dihydroxypropyl acetate Chemical compound CC(=O)OCC(O)CO KMZHZAAOEWVPSE-UHFFFAOYSA-N 0.000 description 1
- 244000061520 Angelica archangelica Species 0.000 description 1
- 235000007070 Angelica archangelica Nutrition 0.000 description 1
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229940043350 citral Drugs 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- WTEVQBCEXWBHNA-JXMROGBWSA-N geranial Chemical compound CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- PGMYKACGEOXYJE-UHFFFAOYSA-N pentyl acetate Chemical group CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention provides a kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent.The method of discrimination is carried out using color difference meter, and the color of the flavouring essence for tobacco is applied to the standard testings of GB3143 1982；Discriminating step is as follows：S1. L, a, b value of essence sample for tobacco are detected using color difference meter；S2. numerical value S1. measured and L, a, b value of standard essence sample for tobacco are contrasted, and calculate △ L, △ a, △ b;And according to formula：△ E=（△L2+△a2+△b2）1/2Calculate △ E；S3. when essence sample for tobacco meets △ E≤2.0, and △ L, △ a and △ b absolute value≤1.5 when, be determined as qualified samples.The present invention uses chromatism method to set up out can not only colourity of the quantitative analysis using glyceryl triacetate as the flavouring essence for tobacco of solvent, the whether qualified method of discrimination of the flavouring essence for tobacco quality can also be differentiated simultaneously, solve the problem of prior art qualitative analysis is excessively obscured, it is impossible to accurate that the problem of whether quality is qualified differentiated.
Description
Technical field
The invention belongs to flavouring essence for tobacco detection field, and in particular to a kind of flavouring essence for tobacco using glyceryl triacetate as solvent
Quality Quick method.
Background technology
Flavouring essence for tobacco is the important component during cigarette blending, which determines the fragrance and note of cigarette.Traditional cigarette
With essence using ethanol, ethylene glycol etc. as main solvent, the difference at position is used with the development and blending of meat flavor formulating technology, is gone out
Now using flavouring essence for tobacco of the glyceryl triacetate as solvent.Determine whether this flavouring essence for tobacco goes bad, generally using smell it is fragrant and
Color two indices are observed to carry out.Smelling perfumed ribbon has subjectivity, and is limited by the sensitivity of people's nose, smell perfume result with
There is larger error in actual quality；Observation is more direct, but only discoloration very high sample, and it is accurate also otherwise to be difficult to
Discern whether to go bad.It is solvent for glyceryl triacetate although mass spectrum is a kind of conventional detection method of analysis field
Flavouring essence for tobacco, because complicated component and solute concentration be not high, mass spectrographic sensitivity is also difficult to make accurate detection, therefore
Mass spectrum is not suitable for detecting the quality of this kind of essence sample.At present in cigarette industry, due to there is professional standard as guidance,
Therefore it is main at present still to be differentiated using the method for observation color.Professional standard《YC 144-2008 cigarette glyceryl triacetates》
Define, the detection method to glyceryl triacetate class material chromaticity index is《GB 3143-1982 liquid chemical product colors
Assay method》, i.e. Hazen units-platinum-cobalt color comparative approach.The result that this method is measured is qualitative results, with less than certain value
Expressed, it is more general fuzzy, it is unfavorable for the multilevel iudge between result.The real work that flavouring essence for tobacco differentiates is with reference to the party
Method, protracted experience is confirmed, though the colourity that test sample is tested by platinum-cobalt color method meets the requirements, but still may quality
Changed, it is impossible to fully meet the demand of actual use.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of cigarette use using glyceryl triacetate as solvent
The quality Quick method of essence.
The above-mentioned purpose of the present invention is achieved by following technical solution：
A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent, the method for discrimination uses aberration
Instrument is carried out, and the color of the flavouring essence for tobacco is applied to GB3143-1982 standard testings；Discriminating step is as follows：
S1. L, a, b value of essence sample for tobacco are detected using color difference meter；
S2. numerical value S1. measured and L, a, b value of standard essence sample for tobacco are contrasted, and calculate △ L, △ a, △ b;And
According to formula：△ E=（△L2+△a2+△b2）1/2Calculate △ E；
S3. when essence sample for tobacco meets △ E≤2.0, and △ L, △ a and △ b absolute value≤1.5 when, it is qualified to be determined as
Sample.
In GB3143-1982 standards, it is indicated that the standard is applied to determine transparent or slightly band close to the platinum-cobalt color number of reference
The color of liquid chemical product, this color characteristic is usually " brown color ".Using glyceryl triacetate as the flavouring essence for tobacco of solvent
Also in the range of this.By the detection of the Lab scale essence sample for tobacco of color difference meter, criterion is summarized, is set up out not only
Colourity of the energy quantitative analysis using glyceryl triacetate as the flavouring essence for tobacco of solvent, while the flavouring essence for tobacco quality can also be differentiated whether
Qualified method of discrimination.Therefore, only once measurement can carry out accurate anticipation to quality.
In order to ensure the stability for differentiating effect, it is preferable that when being detected using color difference meter, first carry out 60 points to instrument
The preheating of clock, then tested.
Preferably, the flavouring essence for tobacco using glyceryl triacetate as solvent is flowers and fruits flavor essence.
It is described using glyceryl triacetate as the flavouring essence for tobacco of solvent in, aroma component include alpha-phenyl ethyl alcohol, 3- methyl-penta
Acid, alpha-terpineol, acetic acid fennel ester, acetic acid amyl group cinnamic ester.
Preferably, when the color of the flavouring essence for tobacco uses GB3143-1982 standard testings, chromatic value is less than 20.
It is highly preferred that when the color of the flavouring essence for tobacco uses GB3143-1982 standard testings, chromatic value is less than 15.
It is highly preferred that when the color of the flavouring essence for tobacco uses GB3143-1982 standard testings, chromatic value is 5 ~ 15.
Sample in the range of this, the method for the invention has the higher degree of accuracy.
Flavouring essence for tobacco of the present invention is in general, it is also possible to containing easily by illumination oxidation Decomposition cause it is fragrant into
Point.The composition that these described easy illumination are decomposed is probably vanillic aldehyde, heliotropin or citral etc..
Preferably, the flavouring essence for tobacco is lemon, Archangelica officinalis Hoffmann root essential oil or lemon verbena essential oil.
Preferably, the essence sample for tobacco by 0.1 ~ 0.15 volume % flavouring essence for tobacco and 99.85 ~ 99.9 volume % three
Acetin is mixed.Most preferably mixed by the glyceryl triacetate of 0.15 volume % flavouring essence for tobacco and 99.85 volume %
Conjunction is made.
Compared with prior art, the invention has the advantages that：
The present invention use chromatism method set up out can not only colourity of the quantitative analysis using glyceryl triacetate as the flavouring essence for tobacco of solvent,
The whether qualified method of discrimination of the flavouring essence for tobacco quality can also be differentiated simultaneously, solve what prior art qualitative analysis was excessively obscured
Problem, also overcoming existing the problem of whether quality is qualified can not be accurately differentiated to glyceryl triacetate sample.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment, but embodiment does not do any type of to the present invention
Limit.Unless stated otherwise, the reagent of the invention used, method and apparatus is the art conventional reagent, methods and apparatus.
In embodiment, the color difference meter used is Color I7 color difference meter（X-Rite, the U.S.）.
The essence sample for tobacco used in embodiment is 0.15 volume % lemon and 99.85 volume % glyceryl triacetates
The well mixed sample formed.
It is as follows to essence sample for tobacco concrete operations using color difference meter：
1st, essence sample for tobacco is poured into the cuvette used in transmission mode, reaches required graduation mark.
2nd, the accessory such as instrument and computer is opened, instrument is preheated 60 minutes.
3rd, corresponding operation software in computer is opened, calibration operation is completed.
4th, the accessory support transmitted used in detection is placed on position suitable after light source, and will be equipped with detecting the ratio of sample
Color ware is placed on support.
5th, start to measure L, a, b value.
The colourity of according to standard sample, We conducted the test of 4 kinds of instance models, the test result such as table of each embodiment
1 and table 2 shown in：
Table 1
Table 2
Essence sample for tobacco 1 repeats 100 samples, and the result differentiated using the inventive method is with it is tried with blending cigarette is made
Sample verifies that as a result completely the same, accuracy rate is 100%.Essence sample for tobacco 2 repeats 132 samples, is sentenced using the inventive method
Other result with blending cigarette sample is made by it with verifying that, wherein 131 results are completely the same, accuracy rate is 99.2%.Cigarette is used
Essence sample 3 repeat 156 samples, the result differentiated using the inventive method with by its with make blending cigarette sample checking,
Wherein 152 results are completely the same, and accuracy rate is 97.4%.Essence sample for tobacco 4 repeats 200 samples, using the inventive method
The result of differentiation with blending cigarette sample is made by it with verifying that, wherein 196 results are completely the same, accuracy rate is 98%.
Claims (9)
1. a kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent, it is characterised in that described to sentence
Other method is carried out using color difference meter, and the color of the flavouring essence for tobacco is applied to GB3143-1982 standard testings；Discriminating step is such as
Under：
S1. L, a, b value of essence sample for tobacco are detected using color difference meter；
S2. numerical value S1. measured and L, a, b value of standard essence sample for tobacco are contrasted, and calculate △ L, △ a, △ b;And
According to formula：△ E=（△L2+△a2+△b2）1/2Calculate △ E；
S3. when essence sample for tobacco meets △ E≤2.0, and △ L, △ a and △ b absolute value≤1.5 when, it is qualified to be determined as
Sample.
2. quality discrimination method according to claim 1, it is characterised in that when being detected using color difference meter, first to instrument
Device carries out the preheating of 60 minutes, then is tested.
3. quality discrimination method according to claim 1, it is characterised in that the cigarette using glyceryl triacetate as solvent
It is flowers and fruits flavor essence with essence.
4. quality discrimination method according to claim 1, it is characterised in that the cigarette using glyceryl triacetate as solvent
With in essence, aroma component includes alpha-phenyl ethyl alcohol, 3- methvl-pentanoic acids, alpha-terpineol, acetic acid fennel ester, acetic acid α-amyl group Chinese cassia tree
Ester.
5. quality discrimination method according to claim 1, it is characterised in that the color of the flavouring essence for tobacco is used
During GB3143-1982 standard testings, chromatic value is less than 20.
6. quality discrimination method according to claim 1, it is characterised in that the color of the flavouring essence for tobacco is used
During GB3143-1982 standard testings, chromatic value is less than 15.
7. quality discrimination method according to claim 1, it is characterised in that the flavouring essence for tobacco also contains and easily divided by illumination
The aroma component of solution.
8. quality discrimination method according to claim 1, it is characterised in that the flavouring essence for tobacco is lemon, Ou Bai
Root of Dahurian angelica root essential oil or lemon verbena essential oil.
9. quality discrimination method according to claim 1, it is characterised in that the essence sample for tobacco is by 0.1 ~ 0.15 body
The glyceryl triacetate of product % flavouring essence for tobacco and 99.85 ~ 99.9 volume % is mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399487.9A CN107328718A (en) | 2017-05-31 | 2017-05-31 | A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399487.9A CN107328718A (en) | 2017-05-31 | 2017-05-31 | A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107328718A true CN107328718A (en) | 2017-11-07 |
Family
ID=60192964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710399487.9A Pending CN107328718A (en) | 2017-05-31 | 2017-05-31 | A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107328718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412026A (en) * | 2019-08-13 | 2019-11-05 | 张家口卷烟厂有限责任公司 | A kind of tobacco aromaticss preparation accuracy method for quickly detecting |
| CN110596016A (en) * | 2019-08-26 | 2019-12-20 | 云南中烟新材料科技有限公司 | Method for detecting quality of tobacco essence |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004071A (en) * | 2010-09-17 | 2011-04-06 | 华宝食用香精香料（上海）有限公司 | Method for measuring flavoring essence for tobacco and predicting quality guarantee period |
| CN103542937A (en) * | 2013-10-08 | 2014-01-29 | 杭州慕锐网络技术有限公司 | Digital printing color difference inspecting method |
| CN103759832A (en) * | 2014-01-23 | 2014-04-30 | 广东省金叶科技开发有限公司 | Method for testing and controlling tobacco pulp color shading in process of producing reconstituted tobacco with paper-making method |
| WO2014203581A1 (en) * | 2013-06-18 | 2014-12-24 | 日本たばこ産業株式会社 | Tobacco product containing natural (l)-menthol purified product |
-
2017
- 2017-05-31 CN CN201710399487.9A patent/CN107328718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004071A (en) * | 2010-09-17 | 2011-04-06 | 华宝食用香精香料（上海）有限公司 | Method for measuring flavoring essence for tobacco and predicting quality guarantee period |
| WO2014203581A1 (en) * | 2013-06-18 | 2014-12-24 | 日本たばこ産業株式会社 | Tobacco product containing natural (l)-menthol purified product |
| CN103542937A (en) * | 2013-10-08 | 2014-01-29 | 杭州慕锐网络技术有限公司 | Digital printing color difference inspecting method |
| CN103759832A (en) * | 2014-01-23 | 2014-04-30 | 广东省金叶科技开发有限公司 | Method for testing and controlling tobacco pulp color shading in process of producing reconstituted tobacco with paper-making method |
Non-Patent Citations (2)
| Title |
|---|
| 国家烟草专卖局: "《中华人民共和国烟草行业标准YC 144-2008》", 27 May 2008 * |
| 高文辉等: "烟标产品色差△E研究与控制", 《上海烟草系统2002年度学术论文选编》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412026A (en) * | 2019-08-13 | 2019-11-05 | 张家口卷烟厂有限责任公司 | A kind of tobacco aromaticss preparation accuracy method for quickly detecting |
| CN110596016A (en) * | 2019-08-26 | 2019-12-20 | 云南中烟新材料科技有限公司 | Method for detecting quality of tobacco essence |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Woodman | Food Analysis: Typical Methods and the Interpretation of Results | |
| CN115718101A (en) | Solution color change detection method based on CIEL color space | |
| CN105738357A (en) | CIE1976L * a * b * color space method for sodium hydroxide solution preparation for chemical analysis | |
| CN106018392B (en) | A kind of novel vinegar vinegar age rapid detection method | |
| CN107328718A (en) | A kind of quality Quick method using glyceryl triacetate as the flavouring essence for tobacco of solvent | |
| CN105823738B (en) | A kind of method of transportable property fluorescent brightener levels in measurement paper products | |
| CN108845041A (en) | A kind of detection method measuring redwood volatilization and half volatile chemical component | |
| Minami et al. | A new solid-liquid extraction sampling technique for direct determination of trace elements in biological materials by graphite furnace atomic absorption spectrometry | |
| CN1641349A (en) | Reagent for detecting rice new-old degree and its detecting method | |
| Coward et al. | The determination of vitamin A in cod-liver oils (a) biologically,(b) chemically,(c) physically, with a statistical examination of the results | |
| Hill | Colorimetric Determination of Silicon in Low-Alloy and Carbon Steels | |
| CN110186901A (en) | Quickly detection has the method for the alcoholic strength of color wine | |
| Pourkarim et al. | A simple colorimetric method for determination of ethanol in exhaled breath condensate | |
| JP2018036187A (en) | Test kit for specimen inspection device and method of calibrating specimen inspection device | |
| Oser et al. | Chemical and physical determinations of vitamin A in fish liver oils | |
| CN106053367A (en) | Method for improving stability and sensitivity in content detection of formaldehyde in cosmetics | |
| CN110208260A (en) | Potassium bromate quick detection reagent, kit and detection method in a kind of flour | |
| CN108802083A (en) | A kind of method of sulphur, chlorinity in measurement triphenylphosphine | |
| CN106290203A (en) | A kind of tetracycline colorimetric detection method based on Catalysis by Hemin reaction | |
| CN107917978A (en) | The detection method of ethylene glycol in a kind of pigment lotion | |
| CN102608050A (en) | Identification and quantitative analysis method for refined gutter oil | |
| CN104597012B (en) | A kind of method that benzoyl peroxide in wheat flour is detected based on fluorescence quenching method | |
| Ullucci et al. | Determination of cadmium in biological materials by atomic absorption | |
| CN105928894B (en) | A kind of rapid assay methods of stainless steel middle rare earth total amount | |
| CN110161164A (en) | A kind of flow-type stoichiometric point measurement device and its application |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171107 |
|
| RJ01 | Rejection of invention patent application after publication |