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The Journal of Pure and Applied Chemistry Research
Published by Universitas Brawijaya
ISSN : 23024690     EISSN : 25410733     DOI : http://dx.doi.org/10.21776/ub.jpacr
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology
The Journal of Pure and Applied Chemistry Research focuses in publishing research articles in the field of Chemistry and Applied Chemistry. The target is in exploring, investigating, and developing chemicals sources from local and/or Indonesian to increase the value. Scope of the journal is organic chemistry, analytical chemistry, inorganic chemistry, biochemistry, and physical chemistry. Included the topic also organic chemistry natural product, theoretical and computational chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 10, No 3 (2021): Edition September-December 2021" : 5 Documents clear
Biosynthesis of Cu2O/CuO-NP and AgNP Using Rhizopus oligosporus as Reductor Agent Dwi Putri Woro Pamungkas; Suci Amaliyah; Akhmad Sabarudin; Anna Safitri
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.594

Abstract

Nanoparticles have been widely used in various fields which depends on its size and shape. Nanoparticles can be synthesized physically and chemically. However, these methods need large amount of energy, not environmental friendly and quite expensive, because requires several additional materials besides precursors. In this study, we performed the analysis of some parameters to determine the best conditions for biosynthesis using Rhizopus oligosporus to obtain the nanoparticles with specific size. This fungi was used because easy to find, cultivate, and handle. We found that grain size of Cu2O/CuO-NP and AgNP obtained are 23 nm, 55 nm respectively. In conclusion, this study confirms that some parameters investigated and Rhizopus oligosporus can be used to obtain the nanoparticles with specific size.
Partial Validation of Ultra Performance Liquid Chromatography Method for Quantification of Isoniazid-Pyrazinamide in Human Samples Vycke Yunivita; Triana Nurul Meirina; Atu Purnama Dewi; Harold Eka Atmaja; Rovina Ruslami
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.600

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.
Eco-Friendly Synthesis of Gold Nanoparticles through Gracilaria sp Seaweed Extract for Foam Height Stability in Liquid Hand Soap Formulations Syahjoko Saputra, Iwan; Hermadi Saputro, Anjar; Adliani, Nur; Rahmi, Dwinna; Sudirman, Sudirman; Nopiandi, Yogi
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.599

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.
One-Pot Catalytic Oxidation for Transforming Eugenol to Vanillin Using ZnAl2O4 Catalyst Damiana Nofita Birhi; Elvina Dhiaul Iftitah; Warsito Warsito; Adzkia Qisthi Ismail
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.622

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.
Biosorption of Methylene Blue by Activated Carbon from Sugarcane Waste (ACSW) Hendri Iyabu; Wiwin Rewini Kunusa; Ishak Isa; Doly Prima Silaban
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.559

Abstract

This study was aimed to produce and characterized activated carbon from sugarcane bagassebyphysical and chemicalactivation. Physical activation was performed by carbonation process in temperatures 4500C and 6500C. While chemical activationusedH3PO4 10%, FeCl3 10% and KMnO4 10% as activator. The results showed that total yield (%) 49.8396 - 80.635; pH 4.0-7.9; ash content (g) 0.3338-0.8820; adsorption capacity of iod (%) 93.92-99.20. Morphological structure, functional group and Crystal structure was studied by using SEM analysis, FT-IR and XRD Difragtogram respectively.Adsorption capacity(%) of methylene blue 1.5 ppm and 2.5 ppm using UV-VIS Spectrophotometer produces; for H3PO4activatorat 450℃ = 99.24 and ND;at 600℃ = ND and 99.24. FeCl3 activator at 450℃ = 93.8 and 28.68; At 600℃ = ND and 99.24. KMnO4 activator at 450℃ = 61.24 and 65.12; At 600℃ = 39.4 and 53.79. 

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