Science Journal of Analytical Chemistry最新文献_第3页

Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste 改性和未改性当地农业废弃物吸附去除水中孔雀石绿染料的研究

Science Journal of Analytical Chemistry Pub Date : 2019-06-03 DOI: 10.11648/J.SJAC.20190702.12

Mohammed Saleh Bashanaini, M. H. Al–Douh, Hanan Saeed Al-Ameri

{"title":"Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste","authors":"Mohammed Saleh Bashanaini, M. H. Al–Douh, Hanan Saeed Al-Ameri","doi":"10.11648/J.SJAC.20190702.12","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190702.12","url":null,"abstract":"Local agriculture waste (Shell’s seeds of Ziziphus spina christi) (SZC), in both its unmodified SZC and acid-modified (SZC-AC) forms, was investigated for its potential use as a low-cost adsorbent for the removal of malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope (SEM), Fourier transforms infra-red spectroscopy (FTIR), pH surface, Boehm titration, including, other physical and chemical properties of adsorbent. The effects of initial dye concentration, contact time, solution of pH, temperature and adsorbent dosage were investigated in detail by batch adsorption experiments. For the adsorption of MG were fitted using Langmuir and Freundlich isotherm models, equilibrium isotherms were applicable with maximum monolayer adsorption capacity wear 48.780 mg/g and 370.370 mg/g for the raw shells seeds of Ziziphus spina christi (SZC) and the activated carbon prepared from shells seeds by sulphuric acid SZC-AC, respectively. Kinetics studies showed that both followed the pseudo-second order. Thermodynamics studies indicated that the adsorption of MG was spontaneous on SZC and SZC-AC, and the reactions were endothermic and exothermic, respectively. The proposed adsorbents were successfully applied to the removal of malachite green dye from different water samples with a recovery % >95% and a relative standard deviation (RSD%) <3%.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121072428","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: 10

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes 铅笔石墨电极和玻碳电极上纯形式、药物和生物流体中甲苯的比较伏安行为和测定

Science Journal of Analytical Chemistry Pub Date : 2019-05-08 DOI: 10.11648/J.SJAC.20190702.11

Ehab F El-Kady, Hoda M El-Qudaby, Marwa Omran

{"title":"Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes","authors":"Ehab F El-Kady, Hoda M El-Qudaby, Marwa Omran","doi":"10.11648/J.SJAC.20190702.11","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190702.11","url":null,"abstract":"New voltammetric methods are introduced for the determination of a skeletal muscle relaxant namely; mephenesin (Mep) in its pure form with the application in the pharmaceutical preparation and biological fluids. Three voltammetric methods namely; cyclic voltammetry (CV), differential pulse voltammetry (DPV) and square wave voltammetry (SWV) using pencil graphite electrode (PGE) and glassy carbon electrode (GCE) were used. Voltammetric behavior of Mep was investigated in Britton Robinson (BR) buffer as electrolyte in pH range 2-10. CV produced one irreversible anodic peak revealing oxidation reaction in pH 6 as maximum pH value at 1.33 and 1.36 V using PGE and GCE, respectively. At PGE, DPV and SWV were investigated and linearity ranges were 18.02-119.07 and 18.02-70.0 µg/mL with correlation coefficient 0.9997 and 0.9995, LOD values were found to be 0.113 and 0.059 µg/mL, respectively. At GCE, linearity ranges were 9.05-44.39 and 4.54-65.78 µg/mL with correlation coefficient 0.9996 and 0.9999, LOD values were 0.553 and 0.865 µg/mL at DPV and SWV, respectively. The proposed methods were applied with good recovery in pharmaceutical preparation, human mother milk and urine. They were validated and revealed accurate and precise results.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115008080","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

Antioxidant Activities Correlation Analysis of Procyanidins from China Cultivars Litchi Pericarp 中国品种荔枝果皮原花青素抗氧化活性相关分析

Science Journal of Analytical Chemistry Pub Date : 2019-04-03 DOI: 10.11648/J.SJAC.20190701.14

Weijing Zhou, Xiaoming Jiang, P. He, Zhida Sun, B. Xie

引用次数: 1

To Explore the Bleaching Effect of Chlorine Water 探讨氯水的漂白效果

Science Journal of Analytical Chemistry Pub Date : 2019-04-03 DOI: 10.11648/J.SJAC.20190701.13

Wang Haijun

{"title":"To Explore the Bleaching Effect of Chlorine Water","authors":"Wang Haijun","doi":"10.11648/J.SJAC.20190701.13","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190701.13","url":null,"abstract":"In this paper, first of all, based on the chemical process of chlorine water system in-depth comprehensive analysis, aims to clear the chlorine water is composed of a variety of molecules, ions and free radicals in the complex redox system; secondly, we designed six experiments for scientific inquiry on chlorine bleaching effect under the different conditions, and give a reasonable explanation for the experimental results; finally, scientifically summed up the bleaching effect of chlorine water is a process of multiple components of synergy, many influence factors, but the \"hero\" is still the hypochlorous acid, the chemical principle and bleaching effect of hypochlorous acid to give a scientific explanationand and give a scientific explanation of the chemical principle of bleaching. The research methods are as follows: Contrastive experimental analysis method; Research purposes: Explain the principle and essence of Chlorine bleaching, and further clarify people's vague or even wrong understanding of Chlorine bleaching. Results and conclusions: The bleaching of chlorine water is a very complex physicochemical process with many influencing factors. The structure and properties of Hypochlorous Acid play a decisive role.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114556996","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

Bioremediation of Petroleum Sludge Impacted Soils Using Agro-Waste from Moringa Seed 辣木种子农业废弃物对石油污泥污染土壤的生物修复研究

Science Journal of Analytical Chemistry Pub Date : 2019-01-30 DOI: 10.11648/J.SJAC.20190701.11

Useh Mercy Uwem, D. Sunday, Abdulrahman Funke Wosilat, Useh Uwem Jonah

{"title":"Bioremediation of Petroleum Sludge Impacted Soils Using Agro-Waste from Moringa Seed","authors":"Useh Mercy Uwem, D. Sunday, Abdulrahman Funke Wosilat, Useh Uwem Jonah","doi":"10.11648/J.SJAC.20190701.11","DOIUrl":"https://doi.org/10.11648/J.SJAC.20190701.11","url":null,"abstract":"The feasibility of using agricultural waste from drumstick (Moringa Oleifera Lam.) seed as organic fertilizer to remediate petroleum sludge impacted soils within an 8.5 km radius from Warri Refinery and Petrochemical Company (WRPC) in Delta State, Nigeria was studied using standard methods. The experimental set-up was monitored for 90 days at 30 days interval. The total petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbon (PAH) contents across the 5 sampling sites(A to E) for day 1 were (293846.00, 4255.87), (123874.00, 2942.04), (97291.00, 1818.38), (87561.23, 928.22), (48063.61, 189.93) (mg/kg) as against the control (651.18, 68.06) (mg/kg) respectively. After treatment with the agro-waste from Moringa seed for 90 days, the TPH and PAH contents from sites A to E degraded to (652.58, 5.66), (520.67, 3.09), (254.32, 4.81), (68.80, 0.48) and (61.29, 1.66) (mg/kg) while the control site exhibited (50.62, 0.46) (mg/kg) respectively as detected via gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detector (GC-FID). From the Soil Quality Standards (SQSs) conducted after day 30, only the control site was free from the traces of contamination recorded at day 1. SQSs after 60 days indicated that sites D and E were no more contaminated. SQSs conducted after 90 days revealed that all the sites were free from petroleum hydrocarbon contamination. This result indicated that Moringa Oleifera seed cake (MOSC) is a suitable biostimulant for remediation of petroleum sludge impacted soils.","PeriodicalId":374350,"journal":{"name":"Science Journal of Analytical Chemistry","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132034159","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

Study on Mechanism and Application of High Concentrations of Nitrite-Induced Specific Color Fading 高浓度亚硝酸盐致特定色褪色机理及应用研究

Science Journal of Analytical Chemistry Pub Date : 1900-01-01 DOI: 10.11648/j.sjac.20221002.13

Jiaxin Zuo, Jing Guo

引用次数: 0

Assessment of Balanites aegyptiaca and Sesamum indicum Artisanal Oils Quality and Vitamin Contents 埃及巴兰和芝麻手工油品质及维生素含量评价

Science Journal of Analytical Chemistry Pub Date : 1900-01-01 DOI: 10.11648/j.sjac.20221001.11

Rokhaya Gueye, A. Diaw, Astou Ndiaye, Elhadji Ousmane Faye, A. Diop, Khadidiatou Thiam, Serigne Omar Sarr, B. Ndiaye, Yérim Mbagnick Diop

引用次数: 0

Degradation and Mineralization Study of Promecarb by Electro Fenton Process 电Fenton法降解和矿化Promecarb的研究

Science Journal of Analytical Chemistry Pub Date : 1900-01-01 DOI: 10.11648/j.sjac.20221002.11

Hayet Bakhti, Najib Ben Hamida, D. Hauchard

引用次数: 0

Comparison of Polycyclic Aromatic Hydrocarbons, Pahs Concentration Levels in Types of Beans and Maize from Markets in South East Nigeria 尼日利亚东南部市场上各种豆类和玉米中多环芳烃、多环芳烃浓度水平的比较

Science Journal of Analytical Chemistry Pub Date : 1900-01-01 DOI: 10.11648/j.sjac.20221002.12

Ifeoma Maryrose Odika, C. Okoye, Njideka Veronica Nwankwo, Uche Virginia Okpala, C. Aduaka, N. Onyirioha

引用次数: 2

Preparation and Characterization of Ternary Polyelectrolyte Complexes and Its Application in Overcoming Anti-microbial Resistance 三元聚电解质配合物的制备、表征及其在抗微生物耐药性中的应用

Science Journal of Analytical Chemistry Pub Date : 1900-01-01 DOI: 10.11648/j.sjac.20221001.12

Ezegbe Chekwube Andrew, Ezegbe Amarachi Grace, Orazulike Ozioma Faith, Rimamfate Joseph, Okorafor Chinemerem Ezinne

引用次数: 0