Proceedings of the 1st International Conference on Chemical Science and Technology Innovation最新文献_第6页

The AAS Method for Arsen Analysis in Cabbage in the Area of Sinabung Post Eruption 锡纳朋火山爆发后地区白菜中砷含量的原子吸收光谱法分析

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008920102490252

B. Cahyady, Suharman, M. Taufik, Fitri H Hasibuan

引用次数: 0

Nanometers Formation Model of Iron (Fe) and Magnesium (Mg) on Graphene Nano Sheets 石墨烯纳米片上铁(Fe)和镁(Mg)的纳米形成模型

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008838600260029

R. Siburian, H. Sihotang, S. L. Raja, M. Supeno, C. Simanjuntak, Hana Manurung

{"title":"Nanometers Formation Model of Iron (Fe) and Magnesium (Mg) on Graphene Nano Sheets","authors":"R. Siburian, H. Sihotang, S. L. Raja, M. Supeno, C. Simanjuntak, Hana Manurung","doi":"10.5220/0008838600260029","DOIUrl":"https://doi.org/10.5220/0008838600260029","url":null,"abstract":": An experimental research is being conducted on the joining of dissimilar materials of grey cast iron to low carbon steel utilizing diffusion bonding method. Diffusion bonding process operates on the principle of solid-state diffusion, wherein the atoms of two solid, metallic surfaces intersperse themselves over time, moving an atomic mass form or diffusion through the lattice of a crystalline solid. Upon producing of the diffusion couples through diffusion bonding, the bonds are subjected to SEM (Scanning Electron Microscopy), EPMA (Electron Probe Micro Analyzer), XRD (X-Ray Diffraction), EDS/EDX (Energy Dispersive X-Ray Spectroscopy), WDX’s (Wavelength-dispersive X-ray spectroscopy) micro-structural analysis and mechanical properties examination. Subsequent investigation is to be carried out to establish the diffusion mechanism, inter-diffusion coefficients and activation energy of the diffusion system. To study the optimum conditions that produce excellent and ultimate bond, various bonding parameters and variables are taken into consideration. This paper describes the research progress undertaken to date, explaining the materials involved, equipment, method and preliminary as well as current results on microstructure analysis, tensile test and micro-hardness test.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78992890","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

Synthesis, Antioxidant and Toxicity Activity of Compounds (E)-1-(3-bromophenyl)-3-p tolylprop-2-en-1-on 化合物(E)-1-(3-溴苯基)-3-对甲基丙基-2-烯-1-on的合成、抗氧化及毒性活性

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008836400050009

E. M. Brahmana, J. Kaban, G. Haro, J. Tarigan, B. Wirjosentono, Tamrin, M. Ginting

引用次数: 0

Preparation and Characterization of Chitosan with Activated Carbon as Adsorbent to Reduce Level Metal Cadmium (Cd) and Nickel (Ni) 以活性炭为吸附剂的壳聚糖的制备及其对金属镉、镍的吸附性能

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008921802800286

Fitri Purnama Sari, H. Agusnar, M. Taufik

引用次数: 1

Isolation and Characterization of an Antioxidant Compound from Kayu Hitam Leaves (Diospyros celebica Bakh.F.) 枇杷叶中抗氧化化合物的分离与表征

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008919802340238

H. Br Sembiring, Yuni Romasni Purba

引用次数: 1

Identification of Potential Antioxidants from Leaves of Eucalyptus grandis PT Toba Pulp Lestari, Tbk. 巨桉叶中潜在抗氧化剂的鉴定。

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008920202530256

R. Hidayati, M. Taufik, Z. Alfian, S. Lenny, Chintya Cahaya, Simon Sidabuke, E. Manullang

{"title":"Identification of Potential Antioxidants from Leaves of Eucalyptus grandis PT Toba Pulp Lestari, Tbk.","authors":"R. Hidayati, M. Taufik, Z. Alfian, S. Lenny, Chintya Cahaya, Simon Sidabuke, E. Manullang","doi":"10.5220/0008920202530256","DOIUrl":"https://doi.org/10.5220/0008920202530256","url":null,"abstract":": Eucalyptus plants are one type of essential oil that is fast growing and is also known as a plant that can survive in the dry season and has a deep root system. This essential oil is widely used in various fields, such as for pharmaceuticals, cosmetics and the food industry both as antioxidants and antibacterial. This study aims to identification of potential antioxidants and the main active compounds from leaves of Eucalyptus grandis PT. Toba Pulp Lestari, Tbk. Extraction was carried out using solvents, methanol, ethanol and dichloromethane. The antioxidant potential test was determined by the DPPH method (1,1 diphenyl picrylhydrazyl). The variation of sample volume 20; 30; 40; 50; 60 μL. Antioxidant activity with IC50 Eucalyptus grandis leaf extract was 5,349 μg / mL. Eucalyptus leaf extract is categorized as providing weak antioxidant activity. The main active compound found is Sineol. The peak area was observed at 52% at retention time 13.605. The other compounds obtained in this leaf were α pinene, β pinene, 1,3,7-Octatriene, 3-Ethylpentane, Paracymene, and terpinene.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79702839","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

The Effectiveness of Chitosan as an Antimicrobial on Bacterial Cellulose-based Scaffold Skin Tissue Engineering 壳聚糖在细菌纤维素基支架皮肤组织工程中的抗菌效果

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008864701780181

Khatarina Meldawati Pasaribu, S. Gea, S. Ilyas, Tamrin

引用次数: 0

Bioactivity and Phytochemical Constituents of Extract Etanol from Musa paradisiaca Linn 天麻提取物乙醇的生物活性及植物化学成分研究

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008855100890095

Mayang Sari, Tamrin, J. Kaban, Z. Alfian

引用次数: 0

Modification and Characterization Starch Nanoparticles of Mangrove Fruit using Chemical-mechanical Method and Application as Basic Materials Making Hydrogel 化学-机械法修饰纳米红树淀粉及其制备水凝胶的应用

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008868501910196

G. Saragih, Tamrin, Marpongahtun, D. Nasution

{"title":"Modification and Characterization Starch Nanoparticles of Mangrove Fruit using Chemical-mechanical Method and Application as Basic Materials Making Hydrogel","authors":"G. Saragih, Tamrin, Marpongahtun, D. Nasution","doi":"10.5220/0008868501910196","DOIUrl":"https://doi.org/10.5220/0008868501910196","url":null,"abstract":": Mangroves are plants that function as protectors of the land from ocean waves. Mangroves are a source of starch that has not been explored. To expand the application, the starch needs to be modified. Natural starch is made using wet extraction. Natural starch is synthesized into nanoparticle starch by chemical-mechanical methods. Modified Mangrove Fruit Starch can be used as a base for making hydrogels. Characterization of starch and starch nanoparticles includes proxy analysis, functional groups using the Fourier Transform Infrared Spectroscopy (FTIR). Test the PSA (Partiicle size analyzer) to find out the particle size. Crystallinity test of starch nanoparticles using X-Ray Diffraction (XRD). The morphological analysis of nanoparticles was carried out using the Scanning Electron Microscopy (SEM) instrument. Thermal test using Differential scanning calorimeter (DSC). The results showed that mangrove starch had a yield of 29.60% and particle size of mangrove nanoparticles of 38.79 nm. cyclic or aromatic ring and in the absorption area of 1050 - 1300 cm -1 This vibration shows the vibration of the stretching region of hydrogen with the C-O bond). The results of FTIR spectroscopic analysis showed that the mangrove starch provides a spectrum that describes the structure of starch.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87248363","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

Synthesis and Characterization of Superabsorbent Polymer based on Carboxymethyl Cellulose, Breadfruit Starch and Aluminum Sulfate 羧甲基纤维素、面包果淀粉和硫酸铝高吸水性聚合物的合成与表征

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008857101160120

D. Nasution, Marpongahtun, D. I. Muthawali, A. Budiman, Zulfikar

{"title":"Synthesis and Characterization of Superabsorbent Polymer based on Carboxymethyl Cellulose, Breadfruit Starch and Aluminum Sulfate","authors":"D. Nasution, Marpongahtun, D. I. Muthawali, A. Budiman, Zulfikar","doi":"10.5220/0008857101160120","DOIUrl":"https://doi.org/10.5220/0008857101160120","url":null,"abstract":"Superabsorbent polymer is a polymeric material that able to absorb a large amount of water. The purpose of this study is to synthesize and measure water absorption capacity and study the crosslinking process of superabsorbent-aluminum-breadfruit starch (Al-CMC-BS). The preparation of Al-CMC-BS was done in two steps. The first step was reacting CMC with aluminum sulfate so that the aluminum-carboxymethyl cellulose (Al-CMC) film was produced and then mashed into powder. Al-CMC powder was dissolved in water and reacted with BS solution to obtain Al-CMC-BS. Furthermore, Al-CMC-BS produced was determined their water absorption capacity, morphology with SEM, functional group with FTIR and transition glass temperature with DSC. The results showed that the absorption capacity of water from AlCMC-BS reached 2,444.44 %. SEM analysis shows the formation of a more homogeneous Al-CMC-BS mixture than before mixing. The FTIR spectrum shows the formation of crosslink between Al-CMC and BS. DSC analysis shows that there is one Tg value of Al-CMC-BS that is on 95.85 ̊C, which is in between Tg of BS on 118.72 ̊C and Tg of CMC on 94.23 ̊C. This shows that the mixture of Al, CMC and BS is","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91440628","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