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Analytical Chemistry: A Journal最新文献

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Improvement of Synthesis Process of 4-Amino-1, 8 Naphthalene Anhydride 4-氨基- 1,8萘酸酐合成工艺的改进
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2023.020105
{"title":"Improvement of Synthesis Process of 4-Amino-1, 8 Naphthalene Anhydride","authors":"","doi":"10.23977/analc.2023.020105","DOIUrl":"https://doi.org/10.23977/analc.2023.020105","url":null,"abstract":"","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128987095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on High Flux Direct Contact Membrane Distillation Technology 高通量直接接触膜蒸馏技术的研究
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2023.020102
{"title":"Research on High Flux Direct Contact Membrane Distillation Technology","authors":"","doi":"10.23977/analc.2023.020102","DOIUrl":"https://doi.org/10.23977/analc.2023.020102","url":null,"abstract":"","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124550477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Establishment and application of inferential equations for glass types 玻璃类型推理方程的建立与应用
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2022.010109
Wenbo Wei, Haiyu Wang, Runze Yan
{"title":"Establishment and application of inferential equations for glass types","authors":"Wenbo Wei, Haiyu Wang, Runze Yan","doi":"10.23977/analc.2022.010109","DOIUrl":"https://doi.org/10.23977/analc.2022.010109","url":null,"abstract":": In order to analyze the classification rules of high-potassium glass and lead-barium glass, this paper performs gray correlation analysis on the two types of glass, selects the appropriate chemical composition for each category to divide them into subcategories, gives specific division methods and division results according to the results of principal component analysis, and derives the inferred equation for each category of glass. The inferred equation is used to analyze the chemical composition of the unknown category of glass artifacts, calculate the central distance, and determine which glass category it is by comparing the size of the central distance Identify the type to which it belongs.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124970235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Translation Report on the Process Control and Design Basis of Ethylene 乙烯工艺控制与设计基础的翻译报告
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2023.020101
{"title":"A Translation Report on the Process Control and Design Basis of Ethylene","authors":"","doi":"10.23977/analc.2023.020101","DOIUrl":"https://doi.org/10.23977/analc.2023.020101","url":null,"abstract":"","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131536961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Component Analysis and Identification Model of Ancient Glass Products Based on Correlation Analysis 基于相关分析的古代玻璃制品成分分析及鉴定模型
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2022.010110
Yilei Wang, Wenxing Liu, Ziqiang Lin
{"title":"Component Analysis and Identification Model of Ancient Glass Products Based on Correlation Analysis","authors":"Yilei Wang, Wenxing Liu, Ziqiang Lin","doi":"10.23977/analc.2022.010110","DOIUrl":"https://doi.org/10.23977/analc.2022.010110","url":null,"abstract":": To help ancient glass products to analyze and identify their components, this paper establishes a comprehensive evaluation model to help identify and analyze ancient glass products and their components, and classifies them according to the data, so as to clarify the correlation and sensitivity between their chemical elements. First, this paper makes a simple classification of the data, and then calculates several factors that account for a large proportion of the weight through principal component analysis (PCA). By reducing the dimension of data, the variables are reduced, making the classification basis more intuitive; At the same time, the factors that account for a large proportion of the main factors can be used as the intuitive basis for the division of subcategories. Finally, K-Means is used to further confirm the rationality and sensitivity of the relationship between specific factors and cultural relics.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123917085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Study on Preparation of P-Phenylenediamine from Wasted Polyester 废聚酯制备对苯二胺的研究
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2023.020107
Sun Chengjun, Yang Shenghu, He Weigang, Gu Shunlin, Shen Jiefa, Liu Jianwu, Zhang Yue
{"title":"Study on Preparation of P-Phenylenediamine from Wasted Polyester","authors":"Sun Chengjun, Yang Shenghu, He Weigang, Gu Shunlin, Shen Jiefa, Liu Jianwu, Zhang Yue","doi":"10.23977/analc.2023.020107","DOIUrl":"https://doi.org/10.23977/analc.2023.020107","url":null,"abstract":": The important fine chemical intermediate p-phenylenediamine (PPA) was prepared by a two-step process of catalytic ammonolysis and Hoffmann rearrangement from polyester fiber waste (WP) as raw material. The catalysts, solvents, water, solvent dosage, reaction temperature and other factors in the ammonolysis process were investigated respectively. As well as the solvents, reaction temperature, sodium hydroxide dosage, sodium hypochlorite dosage, residence time and other factors in the rearrangement process. The optimum process condition was obtained as follows: the ratio of m(WP):m(nano-copper oxide, N-Cu):m(NH 3 )=1:0.1:11 for catalytic ammonolysis, reaction temperature of 150°C, reaction time of 24 h, and anhydrous environment; the reaction temperature of microchannel rearrangement was 60°C, residence time of 300 s, and the ratio of n (terephthalamide, DMA): n ( NaOH): n (NaClO)=1:3.2:2.1. The conversion of polyester fiber waste yarn was 71.2% and the yield of p-phenylenediamine was 58.2%.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132270493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study the Chemical Composition Content of Ancient Glass Products before Weathering 研究古玻璃制品风化前的化学成分含量
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2022.010107
Yifan Yuan, Shitong Li, Yiqing Huang
{"title":"Study the Chemical Composition Content of Ancient Glass Products before Weathering","authors":"Yifan Yuan, Shitong Li, Yiqing Huang","doi":"10.23977/analc.2022.010107","DOIUrl":"https://doi.org/10.23977/analc.2022.010107","url":null,"abstract":": Ancient glass preserved in a burial environment for a long time will weather, which in turn leads to changes in its chemical composition and proportion. In this paper, we analyzed the relationship between surface weathering and glass type, ornamentation and color, and used the statistical principles related to statistics to draw statistical graphs to find out the statistical pattern of the presence or absence of chemical composition content on the surface of the artifact samples; established a regression prediction model and used MATLAB software to calculate and predict the chemical composition content of this batch of ancient glass before weathering; solved the problem of dividing the subclasses of two glass types, high potassium glass, and lead-barium glass, and used K-mean clustering method and spectral clustering method for cluster analysis, determined the chemical composition indexes for the division, and the approximate range of values for the division, derived specific division methods and results, and finally analyzed the reasonableness and sensitivity of the results.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124244250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Degradation of methylene blue aqueous solution using atmospheric pressure dielectric barrier discharge 常压介质阻挡放电降解亚甲基蓝水溶液的研究
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2023.020103
Zhijiao Ni, Hongwei Lu, Yuxuan Han, Xuejun Zha
{"title":"Degradation of methylene blue aqueous solution using atmospheric pressure dielectric barrier discharge","authors":"Zhijiao Ni, Hongwei Lu, Yuxuan Han, Xuejun Zha","doi":"10.23977/analc.2023.020103","DOIUrl":"https://doi.org/10.23977/analc.2023.020103","url":null,"abstract":": Methylene blue (MB) is toxic to humans and aquatic animals, and its removal from aqueous solutions requires high power consumption and long processing times. To improve the effect of dielectric barrier discharge (DBD) treatment of methylene blue and increase the energy utilization rate. In this study, we employed a novel approach, using a cylindrical DBD reactor, to treat MB in aqueous solutions. We found several factors, including input voltage, aqueous solution flow rate, number of high voltage electrodes, electrode size, and inside diameter of the dielectric tube influenced the MB removal rates with DBD. Our experimental results indicate that the change of electrode parameters can effectively improve the removal rate of methylene blue in DBD plasma treatment. At the same time, electrode parameters can lead to medium layer change of energy consumption; hence, the influence of electrode parameters on energy utilization efficiency also has an optimal value.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124483879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on Composition Analysis and Identification of Ancient Glass Products 古代玻璃制品成分分析与鉴定研究
Analytical Chemistry: A Journal Pub Date : 1900-01-01 DOI: 10.23977/analc.2022.010108
Sheng-hu Yao, Yang Nie, Wei Zhu, Xiaojing Yang
{"title":"Study on Composition Analysis and Identification of Ancient Glass Products","authors":"Sheng-hu Yao, Yang Nie, Wei Zhu, Xiaojing Yang","doi":"10.23977/analc.2022.010108","DOIUrl":"https://doi.org/10.23977/analc.2022.010108","url":null,"abstract":": Affected by the weathering process, the internal elements in ancient glass will be exchanged with the external environmental elements, resulting in a change in the proportion of chemical components, but there will be a certain correlation between the exchange of elements. In this paper, a mathematical model for component analysis and prediction using the K-means clustering model and BP neural network is established.","PeriodicalId":221300,"journal":{"name":"Analytical Chemistry: A Journal","volume":"170 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127017723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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