International Journal of Advanced Research in Chemical Science最新文献

Differential Pulse Voltammetric Determination of Paracetamol Using Activated Glassy Carbon Electrode 活性炭电极差分脉冲伏安法测定扑热息痛

International Journal of Advanced Research in Chemical Science Pub Date : 2021-05-21 DOI: 10.20431/2349-0403.0706004

Meselu Eskezia Ayalew, Dereje Yenealem Ayitegeb

{"title":"Differential Pulse Voltammetric Determination of Paracetamol Using Activated Glassy Carbon Electrode","authors":"Meselu Eskezia Ayalew, Dereje Yenealem Ayitegeb","doi":"10.20431/2349-0403.0706004","DOIUrl":"https://doi.org/10.20431/2349-0403.0706004","url":null,"abstract":"The electrochemical property of paracetamol was investigated at a glassy carbon electrode and activated glassy carbon electrode. Differential pulse voltammetry and cyclic voltammetry were used as diagnostic techniques in the determination of paracetamol. The activated glassy carbon electrode exhibited excellent electro-catalytic behaviour for the oxidation of PAR as evidenced by the enhancement of the oxidation peak current and the shift in the oxidation peak potential to less positive values by (13mv) in comparison with a bare GCE. In the present work the activated glassy carbon electrode was prepared by activating 200 s in a time base technique at a potential of 1750 mV. The electrode process of paracetamol was studied and some the experimental parameters which affect the response paracetamol, such as pH, effect of PAR concentration and scan rate on AGC electrode. The analysis of cyclic voltammogram gave fundamental electrochemical parameters including the electroactive surface coverage, the electron transfer coefficient and the heterogeneous rate constant (ks). The variation of scan rate study shows that the system undergoes adsorption controlled process. The equation of the calibration curve was found to be: Ip=0.429C + 6.43, R2=0.993. The LOD and LOQ for the developed method were determined to be 8×10-8 mol L-1 and 2.6×10-7mol L-1 respectively. Phosphate buffer pH 7.0 was selected for analytical purpose.","PeriodicalId":13721,"journal":{"name":"International Journal of Advanced Research in Chemical Science","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88487845","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

Interphase Mass Transfer- An Important Mass Transfer Phenomenon 相间传质——一种重要的传质现象

International Journal of Advanced Research in Chemical Science Pub Date : 2021-01-01 DOI: 10.20431/2349-0403.0801003

Sunil jayant Kulkarni

引用次数: 0

Toxicity Assessment of Heavy Metals in Soils around Transformers in University of Port Harcourt, Choba, Nigeria 尼日利亚乔巴港哈科特大学变压器周围土壤重金属毒性评价

International Journal of Advanced Research in Chemical Science Pub Date : 2021-01-01 DOI: 10.20431/2349-0403.0801004

Ayomide Adetutu Idowu, G. Iwuoha

引用次数: 1

Bio Fuel Synthesis from Waste Feed Stocks-An Insight 从废弃原料中合成生物燃料的新见解

International Journal of Advanced Research in Chemical Science Pub Date : 2021-01-01 DOI: 10.20431/2349-0403.0801005

Parkar Saima Munawar, Mulukh Rutuja Santosh, Narhari Gautami Jagdish, Kulkarni Sunil Jayant

引用次数: 0

Synthesis and Evaluation of Some Oxime Esters as New Attractants for Cockroaches 几种新型蟑螂引诱剂肟酯的合成及评价

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0704002

A. Aliyu, J. Dauda, R. Larayetan

引用次数: 0

Chemical and Physical Properties of Adulterated Honey and Developing Means of Identifying Adulterants 掺假蜂蜜的理化性质及鉴别掺假物的方法研究

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0705003

M. Gemeda, Deresa Kebeba, Teferi Damto, G. Legesse

{"title":"Chemical and Physical Properties of Adulterated Honey and Developing Means of Identifying Adulterants","authors":"M. Gemeda, Deresa Kebeba, Teferi Damto, G. Legesse","doi":"10.20431/2349-0403.0705003","DOIUrl":"https://doi.org/10.20431/2349-0403.0705003","url":null,"abstract":"Honey is defined as a naturally sweet mixture produced by bees (Apis mellifera) from the nectar or from secretions of living parts of plants or excretions of plant sucking insects on the living parts of plants transform and combine with specific substances of their own (such as enzymes), deposit, dehydrate, store and leave in the beeswax honeycombs to ripen and mature. It is typical sugary foodstuff; according to present-day regulations, apart from other forms of honey no other or additives can be added to it. The aim of this study was to develop identification means of adulterated honey using chemical and physical analysis. Adulteration of honey was obtained by mixing and homogenizing major honey adulterants so far known like sugar, banana, “sheb”, molasses and water with different ratio. Moisture content, electrical conductivity, PH, ash, free acidity (FA) and Hydroxymehylfurfural of adulterated and pure honey were determined. The pure honey free acidity content is significantly different from adulterated honey in all treatments group (P<0.05). Highest FA content (458.33±1.66 meq/kg) recorded in (honey: sugar: water: sheb) treatment. Adulteration affects the purity and quality properties of honey, by using the ash content, free acidity and electrical conductivity adulteration can be identified and color parameter is not recommended for identification of adulterated honey.","PeriodicalId":13721,"journal":{"name":"International Journal of Advanced Research in Chemical Science","volume":"188 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76620293","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

Fingerprint Intermolecular Interactions of Sodium and Potassium Complexes 钠和钾配合物分子间相互作用的指纹图谱

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0709003

M. Bhavya, R. Malarvizhi

引用次数: 0

HPLC Method for Simultaneous Determination of Ascorbic acid, Phenylephrine, Paracetamol, Caffeine in Their Pure and Dosage Forms 高效液相色谱法同时测定抗坏血酸、苯肾上腺素、对乙酰氨基酚、咖啡因的纯和剂型

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0706002

Yara M. Elkady, Sobhy M. El-Adl, M. Baraka, M. Sebaiy

{"title":"HPLC Method for Simultaneous Determination of Ascorbic acid, Phenylephrine, Paracetamol, Caffeine in Their Pure and Dosage Forms","authors":"Yara M. Elkady, Sobhy M. El-Adl, M. Baraka, M. Sebaiy","doi":"10.20431/2349-0403.0706002","DOIUrl":"https://doi.org/10.20431/2349-0403.0706002","url":null,"abstract":"An isocratic HPLC method has been developed for determination of ascorbic acid, phenylephrine, paracetamol, and caffeine in their pure and tablet forms. Separation was carried out at room temperature on an Kinetex 2.6 C18 100A (4.6 mm × 100 mm) column using a mobile phase of 0.05 M potassium dihydrogen phosphate buffer (pH 3.50 by ortho-phosphoric acid): acetonitrile: methanol (70:20:10). The flow rate was 1 mL/min, maximum absorption was measured at 220 nm and linearity was in the range of 1-50 μg/mL for all drugs. The retention times of ascorbic acid, phenylephrine, paracetamol and caffeine were reported to be 1.83, 2.94, 3.74 and 5.13 minutes, respectively, indicating a very short analysis time compared with other reported methods. Also, limits of detection were reported to be 0.76, 0.82, 0.47 and 0.24 μg/mL for ascorbic acid, phenylephrine, paracetamol, and caffeine respectively, showing a high degree of the method sensitivity. The proposed method was validated in terms of linearity, accuracy, precision and robustness according to ICH guidelines and results were compared statistically with reference methods in respect of precision and accuracy.","PeriodicalId":13721,"journal":{"name":"International Journal of Advanced Research in Chemical Science","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80660968","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

Assessment of Water Needs in Ezinihitte Local Government Area of Imo State, Nigeria 尼日利亚伊莫州Ezinihitte地方政府地区用水需求评估

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0708002

T. Nnadozie, V. A. Wirnkor

{"title":"Assessment of Water Needs in Ezinihitte Local Government Area of Imo State, Nigeria","authors":"T. Nnadozie, V. A. Wirnkor","doi":"10.20431/2349-0403.0708002","DOIUrl":"https://doi.org/10.20431/2349-0403.0708002","url":null,"abstract":"The study is aimed at assessing the water needs of the people of Ezinihitte LGA. This was cropped from the problem that emanated from the observed Government efforts on water provision, which had remained grossly inadequate to cover the entire communities, the dearth of available water facilities and how the villagers trek to long distances in search of water. Major issues of discourse included the distribution of water to households and how their water needs are tackled. Three hypotheses were tested and the questionnaire survey method was employed. The multi-stage sampling technique was used, and the sample size was 416. Data from the questionnaire were collected, tabulated into frequency distribution table and analyzed by using regression, correlation and ANOVA techniques. While testing the hypothesis, it was found that the quantity of water supplied was insufficient in the study area. Data from different sources show high positive correlation coefficient of variables indicating significant relationships between the quantities of water currently consumed and that required to be consumed. The study was concluded by recommending the involvement of the federal, state and local governments and other interest groups as well as the benefitting communities in water projects.","PeriodicalId":13721,"journal":{"name":"International Journal of Advanced Research in Chemical Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88342274","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

Biosensors for Bacteria for Artwork 用于艺术品的细菌生物传感器

International Journal of Advanced Research in Chemical Science Pub Date : 2020-01-01 DOI: 10.20431/2349-0403.0703001

Georgia-Paraskevi Nikoleli

引用次数: 0