International Letters of Chemistry, Physics and Astronomy最新文献_第5页

Extractive Spectrophotometric Methods for Determination of Chlorpheniramine Maleate in Pure Form, Pharmaceutical Preparations and Biological Fluids 提取分光光度法测定纯马来酸氯苯那敏、制剂和生物液中的含量

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-08-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.75.11

M. Mohamed, E. Frag, H. El-Boraey, Safa S. El-Sanafery

{"title":"Extractive Spectrophotometric Methods for Determination of Chlorpheniramine Maleate in Pure Form, Pharmaceutical Preparations and Biological Fluids","authors":"M. Mohamed, E. Frag, H. El-Boraey, Safa S. El-Sanafery","doi":"10.18052/WWW.SCIPRESS.COM/ILCPA.75.11","DOIUrl":"https://doi.org/10.18052/WWW.SCIPRESS.COM/ILCPA.75.11","url":null,"abstract":"In this study a simple, rapid and sensitive spectrophotometric method was developed for the determination of an antihistaminic drug chlorpheniramine maleate (CPM) in pure form, pharmaceutical preparations, spiked humane urine and spiked blood serum. This method was based on the formation of ion-pairs between the basic nitrogen of the CPM drug and four chromogenic reagents namely bromocresol purple (BCP), alizarine Red S (ARS), eriochrome cyanine R (ECR), and cresol red (CR). The extracted colored ion-pairs were measured spectrophotometrically at 390, 425, 503 and 408 nm for BCP, ARS, ECR and CR reagents, respectively. The different parameters that affect the color development between CPM drug and dyestuff reagents were extensively studied to determine the optimal conditions for the assay procedure. The reaction was studied as a function of the volume of reagents, nature of solvent, temperature, reaction time and stoichiometric ratio between the CPM drug and the reagents. Beer’s law was valid over the concentration ranges of 1-30, 1-10, 2-120 and 4-120 μg mL-1 of CPM drug using BCP, ARS, ECR and CR reagents, respectively. The Sandell sensitivity, molar absorptivity, limit of detection and limit of quantification were determined. Applications of the proposed procedure to the analysis of the pharmaceutical preparations, spiked humane urine and spiked blood serum gave reproducible and accurate results without any interference from excipients. The results obtained by the proposed method were in good agreement with those obtained by reported method. The method can be suggested for the routine analysis of the cited drug.","PeriodicalId":14453,"journal":{"name":"International Letters of Chemistry, Physics and Astronomy","volume":"9 8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77091226","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 and Biological Evaluation of some Novel Pyrano[2,3-d]Pyrimidine Derivatives 一些新型吡喃[2,3-d]嘧啶衍生物的合成及生物学评价

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-06-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.74.9

P. Talpara, G. Dubal, V. Shah

引用次数: 1

Effect of Molarity on Structural and Optical Properties of Chemically Deposited Nanocrystalline PbS Thin Film 摩尔浓度对化学沉积纳米晶PbS薄膜结构和光学性能的影响

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-06-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.74.22

M. Sarma, G. Wary

引用次数: 11

Sorption Activity of “Taunit”-Series Carbon Nanomaterials “Taunit”系列碳纳米材料的吸附活性研究

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-06-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.74.1

V. Polyakov, V. Mukhin, I. Abramova, S. Morozova, N. Shubina, N. Voropaeva, A. Tkachev, A. Burakov, I. Romantsova, V. Karpachev, O. Figovsky

引用次数: 3

Influence of Irradiation on some Optical Properties of (CdO) Thin Films Prepared by Spray Pyrolysis 辐照对喷雾热解制备(CdO)薄膜光学性能的影响

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-06-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.74.15

N. Habubi, B. A. Abrahim, Eman Safaa Noore

引用次数: 2

Protecting Mild Steel from Acid Corrosion Using Extract from Ocimum gratissimum Leaves 用竹叶提取物保护低碳钢免受酸腐蚀

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-04-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.73.9

C. B. Adindu, M. A. Chidiebere, F. Ibe, C. Ogukwe, E. E. Oguzie

引用次数: 5

New Bound States for Modified Vibrational-Rotational Structure of Supersingular Plus Coulomb Potential of the Schrödinger Equation in One-Electron Atoms 单电子原子中Schrödinger方程的超奇异加库仑势修正振动-旋转结构的新束缚态

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-04-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.73.31

A. Maireche

{"title":"New Bound States for Modified Vibrational-Rotational Structure of Supersingular Plus Coulomb Potential of the Schrödinger Equation in One-Electron Atoms","authors":"A. Maireche","doi":"10.18052/WWW.SCIPRESS.COM/ILCPA.73.31","DOIUrl":"https://doi.org/10.18052/WWW.SCIPRESS.COM/ILCPA.73.31","url":null,"abstract":"In this study, three-dimensional modified time-independent Schrödinger equation of modified vibrational-rotational structure of supersingular plus Coulomb (v.r.s.c) potential was solved using Boopp’s shift method instead to apply star product, in the framework of both noncommutativity three dimensional real space and phase (NC: 3D-RSP). We have obtained the explicit energy eigenvalues for ground state and first excited state for interactions in one-electron atoms. Furthermore, the obtained corrections of energies are depended on infinitesimal parameters (Θ,χ) and (θ,σ) which are induced by position-position and momentum-momentum noncommutativity, respectively, in addition to the discreet atomic quantum numbers: j=l±1/2,s=±1/2,l and the angular momentum quantum number m. We have also shown that, the usual states in ordinary three dimensional spaces for ordinary vibrational-rotational structure of supersingular plus Coulomb potential are canceled and has been replaced by new degenerated 2(2l+1) sub-states in the extended new quantum symmetries of (NC: 3D-RSP).","PeriodicalId":14453,"journal":{"name":"International Letters of Chemistry, Physics and Astronomy","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88365832","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: 11

Synthesis and Biological Evaluation of Chalcones Possessing Ring Activating Groups as Potent of Anticancer Agents 含环活化基团查尔酮抗癌活性物质的合成及生物学评价

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-04-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.73.1

Mahammadali M. Khanusiya, Z. Gadhawala

引用次数: 0

Structural and Optical Properties of Mn-Doped ZnO Thin Films Prepared by SILAR Method SILAR法制备mn掺杂ZnO薄膜的结构和光学性质

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-04-01 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.73.22

M. Karunakaran, S. Maheswari, K. Kasirajan, Sivaji Dinesh Raj, R. Chandramohan

引用次数: 5

Adsorption and Equilibrium Studies on the Removal of Methyl Red from Aqueous Solution Using White Potato Peel Powder 白马铃薯皮粉去除水中甲基红的吸附及平衡研究

International Letters of Chemistry, Physics and Astronomy Pub Date : 2017-01-27 DOI: 10.18052/WWW.SCIPRESS.COM/ILCPA.72.52

C. K. Enenebeaku, N. J. Okorocha, U. E. Enenebeaku, I. Ukaga

引用次数: 29