Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of molecular weight and ion cyclotron resonance, which is applied to the analysis of materials, material analysis by electromagnetic means, and measurement devices, can solve problems such as time-consuming and labor-consuming, distortion of test results, and inability to effectively control the quality of asphalt, so as to ensure accuracy and the effect of reproducibility
Active Publication Date: 2012-06-20
RES INST OF HIGHWAY MINIST OF TRANSPORT
View PDF6 Cites 17 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This traditional method is not only time-consuming and labor-intensive, but also susceptible to the influence of modifiers and stabilizers, which distorts the test results
Therefore, it is impossible to obtain the characteristic "fingerprint" information of asphalt by simple physical property index detection, and it is impossible to really effectively control the quality of asphalt.
The lack of effective asphalt quality testing methods and quality control brings great risks in the construction of road pavement
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0034] Embodiment 1: a kind of identification of petroleum asphalt
[0035] 1. Using the instrument
[0036] Apex Ultra Fourier Transform Ion Cyclotron Resonance Mass Spectrometer (FT-ICRMS) of American Bruker Company, magnetic field strength 9.4T, electrospray ionization source (ESI).
[0037] Second, the specific experimental process.
[0038] 1) Set the injection flow rate of electrospray Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) to detect asphalt at 180 μL h -1
[0039] 2) Select the negative ion detection mode of electrospray Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS), and adjust the nebulizer gas flow rate to 1.2L min -1 , drying gas flow rate 5L min -1 , drying gas temperature 200°C, polarization voltage 4000V, capillary inlet voltage 4500V, capillary outlet voltage -320V, reflection plate -300V, quadrupole Q1=200Da, radio frequency 700Vpp; collision energy 1.3V, source storage time 0.01s, The stora...
Embodiment 2
[0056] Example 2: Representative Petroleum Bitumen Comparison
[0060] 2) Select the partial amplification of m / z=401 in the spectrum to identify the compound type of the main peak, mainly N 1 , O 1 , O 2 , O 2 S 1 and N 2 Five heteroatom types (see Figure 5 ).
[0061] 3) Evaluate the four kinds of asphalts by the method of spectrogram matching. No matter in overall characteristics or local characteristics, the four asphalts have significant differences.
[0062] Table 1 Standard sample repeatability analysis results
[0063]
[0064] Table 2 Repeatability analysis results of samples to be tested
[0065]
[0066] Table 3 Comparison results of characteristi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to an asphalt analysis discriminating method by utilizing an electronic spray ionization Fourier transform ion cyclotron resonance mass spectrometry technology. The asphalt analysis discriminating method comprises the following steps of: (1) detecting a standard sample in an electronic spray ionization Fourier transform ion cyclotron resonance mass spectrometer to determine molecular composition, molecular weight and distributed mass spectrometric data of a polar compound in the standard sample; (2) detecting a sample to be detected in the electronic spray ionization Fourier transform ion cyclotron resonance mass spectrometer to determine the molecular composition, molecular weight and distributed mass spectrometric data of another polar compound in the sample to be detected; and (3) evaluating differences of the molecular compositions, molecular weights and distribution of the sample to be detected and the standard sample, detected in a wide band mode and a narrow band mode, by utilizing a spectral ratio method and a repeatability limit method to obtain an asphalt fingerprint identification result. Through the asphalt analysis discriminating method disclosed by the invention, the characteristics of the obtained asphalt fingerprint are remarkable and have very high representativeness and reliability; and the variety discrimination and product identification of petroleum asphalt, coal pitch, natural asphalt (consisting of rock asphalt and lake asphalt) can be realized by comparison of asphalt fingerprint mass spectrometric data of the standard sample and the sample to be detected.
Description
technical field [0001] The invention belongs to an asphalt fingerprint identification method, in particular to an asphalt analysis and identification method based on Fourier transform ion cyclotron resonance mass spectrometry. Background technique [0002] Bitumen is a complex mixture of various complex polymer hydrocarbons and their derivatives. Its quality directly determines the construction quality of asphalt pavement, and affects the performance and service life of asphalt pavement. At present, there are still unqualified asphalt products in my country's asphalt market. Although my country has formulated technical specifications for ordinary road petroleum asphalt, it is often judged whether the asphalt is qualified or not from the perspective of physical properties, such as the three common asphalt indicators: penetration, softening point and extension. This traditional method is not only time-consuming and labor-intensive, but also easily affected by modifiers and st...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more