Rasayan Journal of Chemistry最新文献_第4页

SYNTHESIS OF LiFe1-xNixPO4/C USING THE REFLUX WITH MICROWAVE IRRADIATION METHOD 微波辐照回流法制备LiFe1-xNixPO4/C

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1628164

D. Purwaningsih, H. Sutrisno, K. Sugiyarto, C. Kusumawardani, N. A. Kusumaningrum

引用次数: 0

KINETIC STUDY OF THE FERROCENE COMPLEX IN BINARY IONIC LIQUID MEDIA 二茂铁配合物在二元离子液体介质中的动力学研究

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638249

None A.Salendra, None A. Rochliadi, None I. Mulyani, None G. Grampp, None A. Patah

{"title":"KINETIC STUDY OF THE FERROCENE COMPLEX IN BINARY IONIC LIQUID MEDIA","authors":"None A.Salendra, None A. Rochliadi, None I. Mulyani, None G. Grampp, None A. Patah","doi":"10.31788/rjc.2023.1638249","DOIUrl":"https://doi.org/10.31788/rjc.2023.1638249","url":null,"abstract":"A binary ionic liquid (ILs)-based electrolyte with advanced physicochemical properties has been successfully prepared. The ionic conductivity ( σ ) values of ILs [C 4 mim][PF 6 ] and [C 4 mim][Tf 2 N] were measured using electrochemical impedance spectroscopy are 2.12 and 4.75 mS/cm at 30  C, respectively. The results of electrode kinetics measurement using cyclic voltammetry revealed a value of the diffusion coefficient ( D ) of ferrocene in [C 4 mim][PF 6 ] of 3.3 x 10 -7 cm 2 /s and [C 4 mim][Tf 2 N] 1.60 x 10 -6 cm 2 /s. The ferrocene complex obtained has an electron transfer rate constant ( k s ) of 7.9 x 10 -4 cm/s in [C 4 mim][PF 6 ] and 1.82 x 10 -3 cm/s in [C 4 mim][Tf 2 N]. The addition of [C 4 mim][Tf 2 N] to [C 4 mim][PF 6 ] increased ionic conductivity, diffusion coefficient, and electron transfer rate constant overall, but only to the range of pure ILs. Furthermore, changes in conductivity, diffusion coefficient, and electron transfer rate constant value are proportional to temperature changes, according to the Arrhenius equation. Based on the diffusion activation energy ( E a D ) and the slight decrease in conductivity with temperature, [C 4 mim][PF 6 ] 0.50 -[C 4 mim][Tf 2 N] 0.50 is a superior electrolyte candidate at low-temperature operation.","PeriodicalId":21063,"journal":{"name":"Rasayan Journal of Chemistry","volume":"7 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135594672","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

A RAPID SENSITIVE AND ACCURATE LCMS METHOD FOR THE DETERMINATION OF MUTAGENIC IMPURITIES IN MOXIFLOXACIN HCL 一种快速、灵敏、准确测定盐酸莫西沙星中致突变杂质的LCMS方法

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638349

None K. Aparna, K. Vijaya Rachel, K.M.V. Narayana Rao

{"title":"A RAPID SENSITIVE AND ACCURATE LCMS METHOD FOR THE DETERMINATION OF MUTAGENIC IMPURITIES IN MOXIFLOXACIN HCL","authors":"None K. Aparna, K. Vijaya Rachel, K.M.V. Narayana Rao","doi":"10.31788/rjc.2023.1638349","DOIUrl":"https://doi.org/10.31788/rjc.2023.1638349","url":null,"abstract":"A quantitative method was developed and then validated for two genotoxic impurities (GTS-STG-1A and GTS/STG-1B) in moxifloxacin hydrochloride API samples using the LC–MS approach. The analytes (GTS-STG-1A and GTS/STG-1B) were separated on XDB-column [C8; Eclipse; 5 µm particle dimension; 150 mm length; and ID of 4.6 mm] using a blend of solvent systems ‘A’ (10 mM strength ammonium formate) and ‘B’ (pure acetonitrile) in a gradient pattern elution. The GTS-STG-1A and GTS/STG-1B were detected by positive mode electrospray ionization. The transitions at m/z 332.1–286.2 and 344.2–298.4 were used for GTS-STG-1A and GTS/STG-1B quantitative analysis. Better linearity for the concentration ranges of 0.3863 ppm to 5.7938 ppm for GTS-STG-1A and 0.3786 ppm to 5.6790 ppm for GTS/STG-1B was obtained. The accuracies (94.6% to 99.35 for GTS-STG-1A and 83.25% to 105.9% for GTS-STG-1B) and precisions (1.40% for GTS-STG-1A and 4.30% for GTS-STG-1B) fell within the allowable threshold. The GTS-IA and GTS-IB demonstrated adequate stability under-examined conditions. By keeping track of the GTS-STG-1A and GTS/STG-1B content in the moxifloxacin hydrochloride API during the experiment, the usefulness of the LC-MS technique was shown.","PeriodicalId":21063,"journal":{"name":"Rasayan Journal of Chemistry","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135594916","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

PHYSIOLOGICAL EFFECTS OF TURMERIC (Curcuma longa L) IN THE FORM OF NANO AND CRUDE EXTRACT 姜黄纳米提取物和粗提取物的生理作用

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638471

Leo Jumadi Simanjuntak, Cheryl Grace Pratiwi Rumahorbo, Putri Cahaya Situmorang

引用次数: 0

MICROWAVE-ASSISTED FUNCTIONALIZATION OF INDAZOLES: AN OVERVIEW 微波辅助吲哚功能化:综述

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638444

None S. Mondal

引用次数: 0

AIR QUALITY IN THE COLOMBIAN ANDEAN REGION: BEHAVIOR OF TROPOSPHERIC NO2 FROM SATELLITE DATA 哥伦比亚安第斯地区的空气质量:来自卫星数据的对流层no2的行为

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638353

C. H. Oviedo Sanabria, J.P. Rojas Suárez, M. Vergel Ortega

引用次数: 0

PHYSICOCHEMICAL PROPERTIES, GC-MS ANALYSIS, AND ANTIBACTERIAL ASSAY OF Citrus limon PEELS ESSENTIAL OIL AGAINST ANTIBIOTIC RESISTANT Escherichia Coli 柠檬皮精油对耐药大肠杆菌的理化性质、GC-MS分析及抑菌试验

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1638442

Nur Ain Khairunnisa, None Yuandani, Abdi Wira Septama, Sony Eka Nugraha, None Sufitni

{"title":"PHYSICOCHEMICAL PROPERTIES, GC-MS ANALYSIS, AND ANTIBACTERIAL ASSAY OF Citrus limon PEELS ESSENTIAL OIL AGAINST ANTIBIOTIC RESISTANT Escherichia Coli","authors":"Nur Ain Khairunnisa, None Yuandani, Abdi Wira Septama, Sony Eka Nugraha, None Sufitni","doi":"10.31788/rjc.2023.1638442","DOIUrl":"https://doi.org/10.31788/rjc.2023.1638442","url":null,"abstract":"Essential oils (EOs) produced naturally by plants have been used as antimicrobial agents despite the majority of compounds have not been studied. The study was conducted to assess the effect of EOs found in Citrus limon peels against antibiotic resistance of E. coli by quantifying the specific gravity, refractive index, and GC-MS. The result of GC-MS presented that D-limonene, α-citral, and β-citral are the major constituents of C. limon EO, presenting 56.85; 13.24; and 10.40% of the oil content, respectively. Tests on the essential oil of C. limon confirm its potential antibacterial activity. This assertion was supported by the MIC and MBC values obtained at 250 μg/mL and 500 μg/mL, respectively. Meanwhile, tetracycline showed identical MIC and MBC at 125 μg/mL. The interaction between essential oil and tetracycline was evaluated using a checkerboard assay. Moreover, C. limon peels essential oil had a synergistic to decrease biofilm formation in bacterial tested . In addition, the combination of C. limon peels essential oil and tetracycline illustrated potential activities to lysis the cells and inhibit the efflux pumps of E. coli. The result suggests the combination of C. limon peels essential oil and tetracycline could be used to eradicate antibiotic-resistant E. coli.","PeriodicalId":21063,"journal":{"name":"Rasayan Journal of Chemistry","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136259066","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

SIMULTANEOUS REVERSE PHASE-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (RP-HPLC) ESTIMATION OF AZELASTINE HYDROCHLORIDE, FLUTICASONE PROPIONATE, AND PHENYL ETHYL ALCOHOL IN DYMISTA (MEDA) NASAL SPRAY 反相高效液相色谱(rp-hplc)同时测定盐酸氮唑elastine、丙酸氟替卡松和苯乙醇在dymista (meda)鼻喷雾剂中的含量

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1616916

A. Gupta, P. Singour, S. K. Jain

{"title":"SIMULTANEOUS REVERSE PHASE-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (RP-HPLC) ESTIMATION OF AZELASTINE HYDROCHLORIDE, FLUTICASONE PROPIONATE, AND PHENYL ETHYL ALCOHOL IN DYMISTA (MEDA) NASAL SPRAY","authors":"A. Gupta, P. Singour, S. K. Jain","doi":"10.31788/rjc.2023.1616916","DOIUrl":"https://doi.org/10.31788/rjc.2023.1616916","url":null,"abstract":"This work reported a reverse phase-high performance liquid chromatography method for quantitative estimation of Azelastine Hydrochloride, Fluticasone Propionate, and Phenylethyl Alcohol in Nasal Spray formulation. The assay involved an isocratic elution of these components by using Intersil Octadecylsilane (C18) column (25 cm x 4.6 mm x 5 μm) using mobile phase composition of Buffer: Solvent Mixture (40:60 %v/v) and pH adjusted to 6.5 with dilute orthophosphoric acid. The flow rate was 1.4 mLmin-1 and the analytes are monitored at 254 nm. Separation was completed within 20 minutes. Calibration curves were linear with correlation coefficient more than 0.99 over a concentration range of 50%, 75%, 100%, 125%, and 150% for Azelastine Hydrochloride, Fluticasone Propionate and Phenylethyl Alcohol. The method was proven to be accurate between 50 to 150% with 98 to 102 % recovery of the actives from a spiked placebo. The method was shown to be precise yielding acceptable results for the system reproducibility and method repeatability. All the validation parameters were within the acceptance range according to International Conference on Harmonization norms. The developed method is simple and rapid which could be applied for routine estimation of the formulation.","PeriodicalId":21063,"journal":{"name":"Rasayan Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69409717","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

QUALITY TEST OF CMC (CARBOXYMETHYL CELLULOSE) USING SEMI-BATCH REAKTOR 半间歇反应器法测定羧甲基纤维素的质量

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1626922

R. Futeri, S. Samah, G. R. Putri

{"title":"QUALITY TEST OF CMC (CARBOXYMETHYL CELLULOSE) USING SEMI-BATCH REAKTOR","authors":"R. Futeri, S. Samah, G. R. Putri","doi":"10.31788/rjc.2023.1626922","DOIUrl":"https://doi.org/10.31788/rjc.2023.1626922","url":null,"abstract":"Carboxymethyl Cellulose, one of the additives commonly used in the industrial sector, is carboxymethyl cellulose. The state of the art of this research is because no research makes a reactor to manufacture carboxymethyl cellulose. This study tested the quality of making carboxymethyl cellulose using a semi-batch reactor using samples of potential organic cellulose waste materials: durian seeds, taro rods, and bagasse. This sample has been used to make carboxymethyl cellulose in previous studies using a laboratory scale. Then compared, the manufacture of carboxymethyl cellulose using a reactor laboratory scale. From the result obtained, carboxymethyl cellulose from durian seeds, taro rod, and bagasse made on a laboratory scale and using a reactor has become carboxymethyl cellulose in quality number 1 and 2, which are commonly called carboxymethyl cellulose industrial grade and food chemical codex quality which met the minimum quality requirements by SNI 8762; 2019. Carboxymethyl cellulose from durian seeds, taro rod, and bagasse obtained from research that has been tested with FTIR, the spectra of the best results of carboxymethyl cellulose from durian seeds, taro rod, and bagasse can be seen in the picture there are similar peaks that appear indicates carboxymethyl cellulose durian seeds, carboxymethyl cellulose taro rod, and carboxymethyl cellulose bagasse produced in this study have the same chemical molecule as industrial grade and food chemical codex.1.2","PeriodicalId":21063,"journal":{"name":"Rasayan Journal of Chemistry","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69410795","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

POLYMERIC COMPOSITIONS TO INCREASE OIL RECOVERY 聚合物成分，提高石油采收率

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI: 10.31788/rjc.2023.1628295

A. Issa, O. K. Beisenbayev, U. Akhmedov, B. Smailov, M. Yessirkepova, A.Sh. Kydyraliyeva, Z. Artykova

引用次数: 0