CN105424643A - Method for determining content percentage in mixed oil product - Google Patents
Method for determining content percentage in mixed oil product Download PDFInfo
- Publication number
- CN105424643A CN105424643A CN201511026864.1A CN201511026864A CN105424643A CN 105424643 A CN105424643 A CN 105424643A CN 201511026864 A CN201511026864 A CN 201511026864A CN 105424643 A CN105424643 A CN 105424643A
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- Prior art keywords
- oil product
- oil
- infrared
- mixing
- product
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 150000002148 esters Chemical class 0.000 claims abstract description 15
- 238000002329 infrared spectrum Methods 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 10
- 238000004566 IR spectroscopy Methods 0.000 claims abstract description 5
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 13
- 230000003449 preventive effect Effects 0.000 claims description 13
- 230000010354 integration Effects 0.000 claims description 6
- 238000000862 absorption spectrum Methods 0.000 claims description 4
- 125000000962 organic group Chemical group 0.000 abstract description 3
- 238000004451 qualitative analysis Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract 11
- 230000003595 spectral effect Effects 0.000 abstract 2
- 239000005416 organic matter Substances 0.000 abstract 1
- 238000004445 quantitative analysis Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012113 quantitative test Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a method for determining the content percentage in a mixed oil product and belongs to the field of rust-proof oil. The method comprises the steps that infrared absorption spectrometry is conducted on the rust-proof oil A to be determined and the rust-proof oil B to be determined, the broad peak area at the 3000 cm-1 position and the peak area at the 1750-1735 cm-1 position are integrated, the obtained ratio value of the broad peak area to the peak area is the relative content of esters in the oil product; infrared characteristic absorption analysis is conducted on different mixed oil samples to obtain a standard curve; the mixed oils at the head portion, the middle portion and the tail portion of a transition roll for switching the oil A to the oil B in a field are obtained to be subjected to infrared spectrum detection, the broad peak position and the peak position are integrated, the ratio value is substituted into the standard curve to determine the relative content of the oil A in the mixed oil product. The method has the advantages that qualitative analysis can be conducted on organic groups in the samples according to the position where a spectral band is located, and meanwhile quantitative analysis can be conducted on corresponding organic matter according to the relative strength of the spectral band.
Description
Technical field
The invention belongs to rust preventive oil technical field, particularly a kind of method measuring percentage composition in mixing oil product.
Background technology
Automobile Plate needs at plate face coating rust preventive oil after producing, to ensure the corrosion resisting property in Automobile Plate plate face in production, transport and use procedure.But different to the technical requirement of Automobile Plate product according to downstream user, there is different requirements to the rust preventive oil brand of plate face coating, kind, in actual production, therefore need the rust preventive oil changing different cultivars in oiler.After changing oil product, before residual replacing, oil product can be mixed in use and be coated in Automobile Plate in oil product, and make Automobile Plate in follow-up use procedure, rust-preventing characteristic and stampability aspect impact.
There is downstream user to ask a question to oil product residual in mixing oil product at present, after therefore changing oil product in process of production, add transition volume.But cannot differentiate in appearance due to the oil product of different cultivars, the length of transition volume cannot accurately control, and causes the increase of cost.
Summary of the invention
The object of the present invention is to provide a kind of method measuring percentage composition in mixing oil product, the length solving transition volume cannot accurately control, and causes the problem that cost increases.Infrared absorption method is adopted to carry out quantitative test to oil product content in oil product handoff procedure, thus the residual oil product content in transition volume upper coating oil product is made judge fast and accurately, and determine the length that transition is rolled up, provide technical support to reduce unnecessary increase cost for producing.
First the present invention carries out infrared absorption spectrometry to mixing oil product, and infrared absorption method refers to, organic substance is under the ultrared irradiation of 4000-400cm-1, and selective absorbing is wherein after some frequency, the absorption band formed with infrared spectrometer record.According to bands of a spectrum position, qualitative analysis can be carried out to the organic group in sample, meanwhile, also can carry out quantitative test according to the relative intensity of bands of a spectrum to corresponding organic substance.
Measure the method for percentage composition in mixing oil product, concrete steps and parameter as follows:
1) first infrared absorption spectrometry is carried out, the absorption band that infrared spectrometer record is formed to the rust preventive oil A in two kinds of rust preventive oil mixing to be determined and rust preventive oil B; Carry out integration to 3000cm-1 place broad peak in infrared spectrum and 1750-1735cm-1 place spike area, both compare the relative content that institute's value regards as Ester in oil product;
For A oil product, wherein Ester absorption peak strength is higher, and for B oil product, wherein Ester absorption peak strength is very low;
2) for the mixing oil sample of different ratio, carry out infrared signature absorption analysis, obtain the infrared spectrum of different ratio oil product, carry out integral and calculating to the 3000cm-1 broad peak of the infrared curve of every bar and 1750-1735cm-1 ester peak in the drawings and go out area, both compare the relative content drawing Ester in mixing oil product subsequently; In conjunction with oil product proportioning situation in mixing oil sample, draw with category-A oil product percentage composition for horizontal ordinate, characteristic absorption peak intensity X area is than the typical curve for ordinate;
3) enchashment field by oil product A switch to the transition of oil product B roll up (remaining as A oil product) head, in, afterbody mixing oil product carries out infrared spectrum detection, 3000cm-1 place broad peak and 1750-1735cm-1 place spike area in the miscella product infrared absorption spectra obtained are carried out integration, both compare after numerical value be brought in the typical curve of previous step gained, to determine the relative content mixing A oil product in oil product.
The invention has the advantages that: according to bands of a spectrum position, qualitative analysis can be carried out to the organic group in sample, meanwhile, also can carry out quantitative test according to the relative intensity of bands of a spectrum to corresponding organic substance.
Accompanying drawing explanation
Fig. 1 is oil sample A and oil sample B infrared absorption spectra.
Fig. 2 is mixing oil sample proportioning infrared spectrum.
Fig. 3 is A oil product percentage composition canonical plotting.
Fig. 4 is the infrared signature absorption figure of transition volume head, middle and end mixing oil product.
Embodiment
Embodiment 1
Measure a method for percentage composition in mixing oil product, step is:
1, carry out infrared absorption spectrometry to mixing rust preventive oil kind to be measured two kinds of rust preventive oil, gained as shown in Figure 1, for different rust preventive oil, maximumly distinguishes the relative intensity being positioned at now 1750-1735cm-1 place spike and 1300-1150cm-1 absorption peak.Known by contrast collection of illustrative plates, above-mentioned absorption peak belongs to the characteristic absorption of Ester, and for A oil product, wherein Ester absorption peak strength is higher, and for B oil product, wherein Ester absorption peak strength is very low.Carry out integration to 3000cm-1 place broad peak in infrared spectrum and 1750-1735cm-1 place spike area, both compare the relative content that institute's value can regard as Ester in oil product.
2, configure the mixing oil sample of a series of different ratio for oil product A and oil product B, infrared signature absorption analysis is carried out to mixing oil sample, as shown in Figure 2.In conjunction with oil product proportioning situation in mixing oil sample, carry out the making of typical curve, as shown in Figure 3.
3, enchashment field by oil product A switch to the transition of oil product B roll up (remaining as A oil product) head, in, afterbody mixing oil product carries out infrared spectrum detection, as shown in Figure 4,3000cm-1 place broad peak and 1750-1735cm-1 place spike area in the miscella product infrared absorption spectra obtained are carried out integration, both compare after numerical value be brought in corresponding typical curve, to determine the relative content mixing A oil product in oil product, as shown in table 1.
Table 1 mixes the content of A oil product in oil product
Claims (3)
1. measure the method for percentage composition in mixing oil product, it is characterized in that, concrete steps and parameter as follows:
1) first infrared absorption spectrometry is carried out, the absorption band that infrared spectrometer record is formed to the rust preventive oil A in two kinds of rust preventive oil mixing to be determined and rust preventive oil B; Carry out integration to 3000cm-1 place broad peak in infrared spectrum and 1750-1735cm-1 place spike area, both compare the relative content that institute's value regards as Ester in oil product;
2) for the mixing oil sample of different ratio, carry out infrared signature absorption analysis, obtain the infrared spectrum of different ratio oil product, carry out integral and calculating to the 3000cm-1 broad peak of the infrared curve of every bar and 1750-1735cm-1 ester peak in the drawings and go out area, both compare the relative content drawing Ester in mixing oil product subsequently; In conjunction with oil product proportioning situation in mixing oil sample, draw with category-A oil product percentage composition for horizontal ordinate, characteristic absorption peak intensity X area is than the typical curve for ordinate;
3) enchashment field by oil product A switch to the transition of oil product B roll up head, in, afterbody mixing oil product carries out infrared spectrum detection, 3000cm-1 place broad peak and 1750-1735cm-1 place spike area in the miscella product infrared absorption spectra obtained are carried out integration, both compare after numerical value be brought in the typical curve of previous step gained, to determine the relative content mixing A oil product in oil product.
2. method according to claim 1, is characterized in that, described step 1) in for A oil product, wherein Ester absorption peak strength is higher, and for B oil product, wherein Ester absorption peak strength is very low.
3. method according to claim 1, is characterized in that, described step 3) in remain as A oil product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026864.1A CN105424643A (en) | 2015-12-31 | 2015-12-31 | Method for determining content percentage in mixed oil product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026864.1A CN105424643A (en) | 2015-12-31 | 2015-12-31 | Method for determining content percentage in mixed oil product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424643A true CN105424643A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511026864.1A Pending CN105424643A (en) | 2015-12-31 | 2015-12-31 | Method for determining content percentage in mixed oil product |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046523A1 (en) * | 2001-11-28 | 2003-06-05 | Matsushita Eco Technology Center Co., Ltd. | Plastic identifying method |
| WO2008004477A1 (en) * | 2006-07-04 | 2008-01-10 | Dkk-Toa Corporation | Method of identifying type of oil and type of oil identifying unit |
| CN102262067A (en) * | 2010-05-31 | 2011-11-30 | 北京化工大学 | Attenuate total reflection infrared spectrometry for fast detection of iodine value of edible oil |
| CN103364368A (en) * | 2013-07-12 | 2013-10-23 | 南京富岛信息工程有限公司 | Rapid detection method for properties of mixed crude oil |
| CN105092512A (en) * | 2015-08-21 | 2015-11-25 | 广东省粮食科学研究所 | Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil |
-
2015
- 2015-12-31 CN CN201511026864.1A patent/CN105424643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046523A1 (en) * | 2001-11-28 | 2003-06-05 | Matsushita Eco Technology Center Co., Ltd. | Plastic identifying method |
| WO2008004477A1 (en) * | 2006-07-04 | 2008-01-10 | Dkk-Toa Corporation | Method of identifying type of oil and type of oil identifying unit |
| CN102262067A (en) * | 2010-05-31 | 2011-11-30 | 北京化工大学 | Attenuate total reflection infrared spectrometry for fast detection of iodine value of edible oil |
| CN103364368A (en) * | 2013-07-12 | 2013-10-23 | 南京富岛信息工程有限公司 | Rapid detection method for properties of mixed crude oil |
| CN105092512A (en) * | 2015-08-21 | 2015-11-25 | 广东省粮食科学研究所 | Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil |
Non-Patent Citations (3)
| Title |
|---|
| 《科教兴国丛书》编辑委员会: "《中国科教论文选》", 31 December 1997 * |
| 王学东 吴红: "《仪器分析试验》", 31 August 2015, 山东人民出版社 * |
| 蒋挺大: "《壳聚糖》", 31 January 2007 * |
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Application publication date: 20160323 |