Take the prize again!The students who have won the second prize of the National College Student Chemistry Experimental Innovation Design Competition!

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The 3rd National College Student Chemistry Experimental Innovation Design Contest Finals

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Our school's students won the second prize in the country!

This competition is divided into the preliminary competition of the Seventh National Congress and the National Finals. After the fierce competition in the preliminary competition, the team's participating team won the first prize of the Northwest Division to stand out from the 908 teams of the 410 universities in the 410 universities of the seven regions in the country and became promoted to the country. One of the 90 teams in the finals; in the national finals, Changan University's "Super Energy Analysis Team" won the National Second Prize, setting the best results in Changan University in the chemical experiment competition.

Changan University's "Super Energy Analysis Team" is directed by Wang Shanshan and Cui Lin, teachers of our school's college, and team members are composed of three students from three students from Zhao Junteng, Li Chenzheng, and Fan Xinhao, a level 2021 undergraduate student from the School of Construction Engineering.

Preparation process

In April 2022, the 3rd National College Student Chemistry Experimental Innovation Design Contest started the Northwest Division. Processing and analysis. During the preparation, the team members overcome difficulties and made a common progress, and formed a deep friendship. Ultrasound, vortex, steaming, infrared spectral analysis, PCA main component analysis ... step -by -step experimental processes are intertwined, and the team members' experimental analysis ability has been rapidly improved.

Large amount of data analysis

At the end of June 2022, the participating teams of all parties competed in the Northwest Division. At this time, the team members ushered in the final exam week. During the repeated training preparation for the defense, the team members worked hard to prepare for the competition while preparing for the exam. In the end, Kung Fu was worthy of the people. The team members won the first prize in the Northwest Division to prepare for the finals in August.

The finals were temporarily changed to online due to the epidemic reasons. The team members overcame the difficulties of the epidemic and contacted the school to apply for a early return to the school to prepare for the competition. On the day of the National Finals, the players lived up to expectations and achieved excellent results.

Overview of the Experimental Contents

Under the cooperation of the team members, the "Super Energy Analysis Team" successfully completed the various test processes and completed the experimental report- "The separation and analysis of the components of aging asphalt samples based on solid -phase extraction technology".

Asphalt is an extremely complex road engineering material, which is widely used in my country's highway construction. Under the synergy of various factors, asphalt will have different degrees of aging, the performance is degraded after the aging asphalt, and the asphalt pavement will be damaged. Studying the aging mechanism of asphalt can think that the precision regeneration of aging asphalt provides new ideas.

The experiment of the "Super Energy Analysis Team" combined with infrared spectrum analysis and main component analysis, which proposed a new type of asphalt four components separation analysis methods, which explored the aging mechanism of asphalt from the perspective of the component content changes and chemical aging. The experimental design of the experiment has covered the entire process of processing, data collection and statistical analysis of complex samples, which not only exercise students 'experimental skills, but also cultivate students' ability to analyze complex data and solve unknown problems.

Team speech

I am very honored to represent Chang'an University to participate in the 3rd National College Student Chemistry Experimental Innovation Design Contest and won the National Second Prize. Thanks to the school for giving us opportunities, and thanks to helping our teachers. In this competition, we not only gained knowledge, increased our knowledge, but also understood the principle of "the paper is finally coming, and we must know the matter." In the future study life and scientific research practice, we also It will continue to be down -to -earth, not afraid of difficulties, combine theory and practice, climb the peak, and create a good achievement.

College Student Chemistry Experimental Innovation Design Contest is a national college student discipline competition hosted by the National Experimental Teaching Demonstration Center of the Ministry of Education and the Ministry of Education. Problems, analyzing problems, and ability to solve problems, cultivate college students 'innovative awareness, innovation ability and innovation spirit, establish a communication platform to show the practice of college students' practice and innovation, and promote the reform of the practical teaching model of colleges and universities in my country. Excellent competitions are not only the national stage for college students to show the innovation ability of chemistry experiments and the level of scientific research, but also the stage for chemical teachers to show the reform of experimental teaching and innovation capabilities.

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