The Journal of Pure and Applied Chemistry Research最新文献_第4页

Comparison of Wet and Dry Digestions in the Analysis of Fe in Spinach by Atomic Absorption Spectrophotometry 原子吸收分光光度法测定菠菜中铁的干湿消化比较

The Journal of Pure and Applied Chemistry Research Pub Date : 2022-04-30 DOI: 10.21776/ub.jpacr.2022.011.01.607

Irdhawati Irdhawati, I. Gusti Ayu Putu Yunita Riyastini, M. Manurung

{"title":"Comparison of Wet and Dry Digestions in the Analysis of Fe in Spinach by Atomic Absorption Spectrophotometry","authors":"Irdhawati Irdhawati, I. Gusti Ayu Putu Yunita Riyastini, M. Manurung","doi":"10.21776/ub.jpacr.2022.011.01.607","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2022.011.01.607","url":null,"abstract":"The method of digestion as a part of sample preparation is very important to determine the accuracy of the analysis result. In this study, the methods of wet and dry digestions were applied to determine of Fe content in several kinds of spinach obtained from the traditional market in Denpasar Bali. This research aimed to compare the result of Fe analysis by AAS method using both of digestion methods. This research was divided into several steps starting from sampling, determination of the samples species, sample preparation, digestion by wet digestion using aqua regia and dry digestion in the furnace, and Fe analysis by AAS. The result showed that the concentrations of Fe in root spinach, red spinach, cut spinach, and tricolor spinach through wet digestion method varied between 68.08–105.45 mg/kg, while the concentrations of Fe by dry digestion obtained between 27.52–42.03 mg/kg, which was over the accepted value. Based on the one-way ANOVA statistical test with a significance level of 5%, there was a significant differences of Fe concentration in spinaches by wet and dry digestions.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78864507","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

Study of Hydrogen Sulfide Adsorption on Silica Gel with Triethanolamine layer 三乙醇胺层硅胶吸附硫化氢的研究

The Journal of Pure and Applied Chemistry Research Pub Date : 2022-04-30 DOI: 10.21776/ub.jpacr.2022.011.01.653

I. Wayan Adi Suarya, Rachmat Triandi Tjahjanto, U. Andayani

引用次数: 0

Implementation of Amino Acid as a Natural Feedstock in Production of N-Acylamides as a Biocompatible Surfactants: A Review on Synthesis, Behavioral, Application and Scale-up Process 氨基酸作为天然原料在n -酰基酰胺生物相容性表面活性剂生产中的应用:合成、行为、应用及规模化工艺综述

The Journal of Pure and Applied Chemistry Research Pub Date : 2022-04-30 DOI: 10.21776/ub.jpacr.2022.011.01.616

Widharta Surya Alam, Sabila Gitamara, Riki Wartakusumah, Muhammad Irfan Nurdin, Z. Masyithah

{"title":"Implementation of Amino Acid as a Natural Feedstock in Production of N-Acylamides as a Biocompatible Surfactants: A Review on Synthesis, Behavioral, Application and Scale-up Process","authors":"Widharta Surya Alam, Sabila Gitamara, Riki Wartakusumah, Muhammad Irfan Nurdin, Z. Masyithah","doi":"10.21776/ub.jpacr.2022.011.01.616","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2022.011.01.616","url":null,"abstract":"The use of surfactants is extremely widespread for human life. The development of the use of surfactants has not reached detergents anymore, but for drug delivery, biolubricant, emulsifier, cosmetics, enhanced oil recovery (EOR), dispersants and even virus vectors. Unfortunately, the past history of surfactants had given a bad impression since many surfactants are difficult to decompose in nature, are toxic and are not suitable as biological materials. This article will examine the research development and production, synthesis pathway, classification, behaviour and application of N-Acyl amino acid (NAAAc) surfactants. Amino acid-based N-Acylamides (AAc) or NAAAc surfactants are next-generation biological surfactants. NAAAc can be synthesized by chemical and enzymatic pathway. NAAAc can also be combined with ionic liquids (ILs) to become green surfactants NAAAc ILs which is low in toxicity unlike conventional ILs. The conclusion of this article studied was NAAc production process that had the highest efficiency so far was the production through a catalytic chemical reaction, namely the fatty acid amidation or amino acid acylation process. The application of AAc-based N-Acylamides is so promising that it can be considered for scale-up processes in the future.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"15 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79947977","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

Biosorption of Methylene Blue by Activated Carbon from Sugarcane Waste (ACSW) 活性炭对蔗渣亚甲基蓝的生物吸附研究

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-12-19 DOI: 10.21776/ub.jpacr.2021.010.03.559

H. Iyabu, Wiwin Rewini Kunusa, Ishak Isa, Doly Prima Silaban

引用次数: 0

Partial Validation of Ultra Performance Liquid Chromatography Method for Quantification of Isoniazid-Pyrazinamide in Human Samples 超高效液相色谱法定量人样品中异烟肼-吡嗪酰胺的部分验证

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-12-19 DOI: 10.21776/ub.jpacr.2021.010.03.600

V. Yunivita, Triana Nurul Meirina, Atu Purnama Dewi, Harold Eka Atmaja, R. Ruslami

{"title":"Partial Validation of Ultra Performance Liquid Chromatography Method for Quantification of Isoniazid-Pyrazinamide in Human Samples","authors":"V. Yunivita, Triana Nurul Meirina, Atu Purnama Dewi, Harold Eka Atmaja, R. Ruslami","doi":"10.21776/ub.jpacr.2021.010.03.600","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2021.010.03.600","url":null,"abstract":"Isoniazid (INH) and pyrazinamide (PZA) are first-line drugs in the treatment of meningitis of tuberculosis, in addition to rifampicin. The use of these drugs will determine the success of therapy to kill Mycobacterium tuberculosis in brain tissue that is difficult to penetrate by other drugs. Therefore, it is necessary to conduct research and monitor the use of this drug in plasma and cerebrospinal fluid (CSF) patients with TBM. This study aimed to determine the method of analysis of INH and PZA using Ultra Performance Liquid Chromatography Ultra Violet (UPLC-UV). The samples were taken from TBM patients who taken INH-PZA and others besides TBM patients who did not take INH-PZA. The analytic method carried out includes a comparison of the results of the analysis method for measuring levels of standard INH-PZA and INH-PZA in plasma and CSF samples. Analysis of INH-PZA in plasma and CSF can be performed using UPLC with UV detector, at least 100 uL plasma or CSF samples volume, with reproducible and accurate results.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89361654","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

Biosynthesis of Cu2O/CuO-NP and AgNP Using Rhizopus oligosporus as Reductor Agent 以少孢根霉为还原剂生物合成Cu2O/CuO-NP和AgNP

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-12-19 DOI: 10.21776/ub.jpacr.2021.010.03.594

Dwi Putri Woro Pamungkas, Suci Amaliyah, A. Sabarudin, A. Safitri

引用次数: 0

One-Pot Catalytic Oxidation for Transforming Eugenol to Vanillin Using ZnAl2O4 Catalyst ZnAl2O4催化一锅氧化将丁香酚转化为香兰素

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-12-19 DOI: 10.21776/ub.jpacr.2021.010.03.622

Damiana Nofita Birhi, Adzkia Qisthi Ismail, Elvina Dhiaul Iftitah, W. Warsito

{"title":"One-Pot Catalytic Oxidation for Transforming Eugenol to Vanillin Using ZnAl2O4 Catalyst","authors":"Damiana Nofita Birhi, Adzkia Qisthi Ismail, Elvina Dhiaul Iftitah, W. Warsito","doi":"10.21776/ub.jpacr.2021.010.03.622","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2021.010.03.622","url":null,"abstract":"In this study, ZnAl2O4 catalyst was synthesized with the capability of transforming eugenol to vanillin through One-Pot Catalytic Oxidation. ZnAl2O4 was synthesized from Zn(CH3COO)2.2H2O and Al2O3 using the wet-impregnation method, and characterized by FTIR, XRD, and SEM. One-Pot Catalytic Oxidation was conducted by heating under reflux at 150oC using nitrobenzene and a certain amount of ZnAl2O4 catalyst (4% and 7%) for 2 and 3 hours of reaction. Catalytic Oxidation is also carried out without catalyst as a comparison. The vanillin product was confirmed by GC and spectral data achieved from UV-Vis, FTIR, and mass spectrometry. The results revealed that transforming eugenol to vanillin using ZnAl2O4 catalyst provides a better selectivity value than without using the catalyst, is 100% for the use of 4% catalyst in 2 hours, while without catalyst gives 88% in 3 hours. In addition, the use of 4% catalyst in 3 hours gives 94% for selectivity of vanillin, and the use of 7% catalyst gives selectivity values at 82% and 85%, respectively for 2 hours and 3 hours. The conversion rate of the use of catalyst and without catalyst gives the perfect rate at 100%, but the use of catalyst produces better vanillin with percent yield at 2.485 for 2 hours, and 3.22% for 3 hours, while without catalyst have percent yield of vanillin at 1.94% for 3 hours.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"2015 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87254475","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

Eco-Friendly Synthesis of Gold Nanoparticles through Gracilaria sp Seaweed Extract for Foam Height Stability in Liquid Hand Soap Formulations 用紫菜提取物合成金纳米颗粒的生态友好型研究，以提高洗手液配方中的泡沫高度稳定性

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-12-19 DOI: 10.21776/ub.jpacr.2021.010.03.599

Iwan Syahjoko Saputra, Anjar Hermadi Saputro, N. Adliani, Dwinna Rahmi, S. Sudirman, Yogi Nopiandi

{"title":"Eco-Friendly Synthesis of Gold Nanoparticles through Gracilaria sp Seaweed Extract for Foam Height Stability in Liquid Hand Soap Formulations","authors":"Iwan Syahjoko Saputra, Anjar Hermadi Saputro, N. Adliani, Dwinna Rahmi, S. Sudirman, Yogi Nopiandi","doi":"10.21776/ub.jpacr.2021.010.03.599","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2021.010.03.599","url":null,"abstract":"Gold nanoparticles (G-NPs) were successfully synthesized using Gracilaria sp seaweed extract. Visually, color changes from purple-blue to ruby red and then finally to pink. UV-Vis spectrophotometer showed the optimum condition of G-NPs at 531 nm wavelength with an absorbance value of 1.1. The fourier transform infrared (FTIR) spectroscopy shows the absorption peak of functional groups at the Gracilaria sp seaweed extract like hydroxyl group (-OH), aromatic (C=C), alkane (C-H), and amine (C-N) at the wavenumbers of 3356, 1613, 1456, and 1182 cm-1, respectively. The X-ray diffraction (XRD) shows the crystallinity peaks of G-NPs at 2θ: 38.3o, 44.1o, 64.8o, and 77.8o with miller indices of (111), (200), (220), and (311). The Particle size analyzer (PSA) shows the distribution and particle size average of G-NPs was 11.8 nm. Analysis of particle zeta charge (PZC) confirms the total charge of inter-particles was -24.7 mV. The transmission electron microscopy (TEM) images shows the G-NPs was spherical shape with a particle size was 20 nm. The hand soap@G-NPs have a pH of 6.0 and foam height stability of 4.1 cm for 10 min.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73913799","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

The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation 咖啡渣活性炭与氧化铁复合在紫外和超声下降解苯酚的性能研究

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-08-31 DOI: 10.21776/ub.jpacr.2021.010.02.575

L. Dinira, Barlah Rumhayati, A. Wiryawan

{"title":"The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation","authors":"L. Dinira, Barlah Rumhayati, A. Wiryawan","doi":"10.21776/ub.jpacr.2021.010.02.575","DOIUrl":"https://doi.org/10.21776/ub.jpacr.2021.010.02.575","url":null,"abstract":"Coffee consumption over the past four years has continued to increase the amount of used coffee grounds. Usually, the used coffee grounds are simply thrown away. In fact, it can still be used as other materials that are more efficient and environmentally friendly, such as activated carbon. Activated carbon can be utilized as an adsorbent to adsorb compounds that are carcinogenic and potentially last a long time in the environment, such as phenols. Phenol decomposition through chemical can be carried out by Advanced Oxidation Process (AOP) which utilize hydroxyl radicals. This method used a catalyst such as iron(III) oxide under ultraviolet light. Phenol decomposition can also be carried out using ultrasound. This study presents the performance of the combination of activated carbon-catalyst with ultrasound in phenol decomposition. The results showed that the mass of the composite influenced the 0.1 M phenol degradation by the activated carbon–iron(III) oxide assisted with ultraviolet light, ultrasound, and 0.01 M hydrogen peroxide. for 45 minutes. The best degradation of phenol was obtained when 0.5 g adsorbent was applied with the adsorption capacity of phenol was 704.37 mg/g. The concentration of hydrogen peroxide also affects the decomposition of phenol in solution. From the variation of the hydrogen peroxide solution used (0.01; 0.02; and 0.03 M), the optimal concentration in degrading phenol was 0.01 M with the adsorption capacity of phenol was 393.70 mg/g.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75044405","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

Effect of Calcination Temperature on the Synthesis of Silica from Bagasse 煅烧温度对甘蔗渣合成二氧化硅的影响

The Journal of Pure and Applied Chemistry Research Pub Date : 2021-08-31 DOI: 10.21776/ub.jpacr.2021.010.02.587

P. Hariani, F. Riyanti, Desneli Desneli, Fatma Fatma, Sabila Yunita, M. Said

引用次数: 0