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INDONESIA
Indonesian Journal of Pure and Applied Chemistry
Published by Universitas Tanjungpura
ISSN : 26208571     EISSN : 2620858X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry
Indonesian Journal of Pure and Applied Chemistry (IJoPAC) was first established in 2018 as a scientific journal that accommodates researchers and education practitioners to publish scientific work and research results which are the results of experiments or literature studies in the field of chemistry. Publications are carried out periodically with three issues (January-April, May-August, September-December) in one volume per year. Published scientific work can be in the form of original articles, short communications and review results covering the fields of Physical chemistry, Organic chemistry, Analytical chemistry, Inorganic chemistry, Biochemistry / Biological Chemistry, Applied Chemistry. Focus and Scope of Indonesian Journal of Pure and Applied Chemistry covering the fields : Physical chemistry Organic chemistry Analytical chemistry Inorganic chemistry Biochemistry/Biological Chemistry Applied Chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 6, No 1 (2023)" : 5 Documents clear
THE USE OF NITRIC ACID AS A PERLITE ACTIVATOR IN ADSORBING METHYLENE BLUE Mardiana Rimba Utami; Kapti Riyani; Tien Setyaningtyas
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 1 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i1.63202

Abstract

Industrial activities in modern times that are growing rapidly can cause environmental problems. This is due to the increasing amount of waste generated due to increased production. Untreated dye waste can inhibit sunlight penetration, photosynthesis activity, and the growth of aquatic biota. One of the dye wastes that is often found is methylene blue. Processing of methylene blue dye can use a practical adsorption method, easy to do at a low cost. This study showed the results of methylene blue adsorption using activated perlite nitric acid adsorbent. The best activity of perlite in adsorbing methylene blue is at pH 9 with a contact time of 180 minutes which results in a maximum adsorption capacity of 3,873 mg/g. The adsorption kinetics used followed a pseudo second order-model with consecutive k and q values of 0.0055 g/mg.min and 3.3102 mg/g, while the adsorption isotherms followed the Langmuir isotherm model with qmax and KL values of 3.873 mg/g and 0.5822 L/mg, respectively.
AKTIVITAS TABIR SURYA FRAKSI METANOL DARI DAUN SIMPUR (Dillenia indica Linn.) DAN KARAKTERISASI SENYAWA ISOLATNYA Salatiana Salatiana; Endah Sayekti; Gusrizal Gusrizal
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 1 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i1.63085

Abstract

Sunscreen activity has been tested on simpur leaves (Dillenia indica Linn.) by determining the value of sun protection factor (SPF), erythema transmission percentage (%Te) and pigmentation transmission percentage (%Tp) of each methanol extract, n-hexane, dichloromethane fraction, and methanol fraction from simpur leaves. This test was carried out using a UV-Vis spectrophotometer (λ = 200-400 nm), a variation of sample concentration of 50; 75 and 100 ppm. The methanol fraction at a concentration of 100 ppm showed the highest SPF value of 4.630 ± 0.043 and the lowest %Te and %Tp values of 32.316 ± 0.297 and 52.699 ± 0.160, respectively. Isolation of flavonoids from the methanol fraction produced a relatively pure isolate (Rf = 0.901) with code G1 in the form of a yellowish-green solid/powder (1.5 mg). Characterization of isolate G1 using the FTIR spectrophotometer showed that there were vibrations of the alcohol O-H groups (3446.79 cm-1), aliphatic C-H (2958.80-2858.51 cm-1), C=C aromatic (1635.64 cm-1), C=C aromatic (1635.64 cm-1), C =O (1730.15 cm-1), C-O alcohol (1122.57 cm-1), and aliphatic C-H (1463.97-1382.96 cm-1). Based on a comparison of the spectra of isolate G1 with the spectra from the literature, isolate G1 was predicted as a flavonoid compound in the flavan or flavanol groups
BIOSINTESIS DAN KARAKTERISASI PARTIKEL PERAK EKSTRAK TANAMAN DAUN PORANG (Amorphophallus muelleri Blume) SEBAGAI PENDETEKSI ION LOGAM MERKURI Doni Notriawan; Febrika Laila; Eka Angasa; Gustria Ernis; Teja Dwi Sutanto; Reza Pertiwi; Ida Ayu Suci
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 1 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i1.63771

Abstract

This study aims to synthesize and characterize silver particles using Porang leaf extract (Amorphophallus muelleri Blume) and determine the selectivity of silver particles as mercury metal ion detectors. The study employed Porang leaf extract as a bioreductor and stabilizer, 0.01M AgNO3 solution as a precursor, and HgCl2 salt solution and PbCl2 salt solution as standard salt solutions to be tested for selectivity. The 2 g of Porang leaves used were cleaned, cut into pieces, allowed to stand at room temperature for three days, and mashed. Porang leaf powder was added with 50 mL of demineralized water and then heated for 15 minutes at a solution temperature of 80°C. The reaction of silver particle formation was carried out by adding Porang leaf extract and AgNO3 0.01M in variations of 1:3, 1:4, 1:5, 1:6, and 1:7, then irradiating under indirect sunlight for 15 minutes. The reaction results of a mixture of colloidal extract and AgNO3 solution showed a change in color to brownish-yellow. The color change indicated the formation of silver particles. The silver particles were then characterized with a UV-Vis spectrophotometer after 15 minutes of heating, 1 hour, and 5 hours at room temperature. The results obtained with colloidal silver particles can be synthesized with a bioreductor of Porang leaf extract (Amorphophallus muelleri Blume) with optimum variations of 1:3 and 1:4. The PSa results obtained in the mixture of silver particles formed were micro-nano-sized silver particles. The results of silver particles tested against metal ions showed that silver particles selectively detect Hg (II) metal ions in HgCl2 solutions compared to Pb (II) metal ions in PbCl2 solutions.
THE EFFECT OF ADDITION BY BUTHYLATED HYDROXYTOLUENE (BHT) ON PHYSICAL PROPERTIES OF GEOMEMBRANE FROM RECYCLED HIGH DENSTY POLYETHYLENE (HFPE) PLASTIC WASTE Veren Fransiska; Intan Syahbanu; Adhitiyawarman Adhitiyawarman
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 1 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i1.62725

Abstract

Recycled High Density Polyethylene (HDPE) has been prepared for geomembrane construction material. The aim of this research was to study the effect of Butylated Hydroxytoluene (BHT) addition as an antioxidant on the characteristics of the resulting geomembrane. Fourier Transform Infra Red (FTIR) analysis was carried out to examine functional groups of recycled HDPE and prepared geomembranes. Mechanical properties, permeability and hydrophobicity of geomembrane were observed to determined optimum BHT addition. The results of FTIR analysis on recycled HDPE showed the presence of functional groups at wavelengths 2912 and 2847 cm-1 (C-H stretching); 1474 and 1467 cm-1 (CH2 bend); 721 cm-1 (CH2 Rock). After being formulated with other materials to obtain geomembranes, it was not found new peak indicating that the presence of BHT in geomembrane only physical interaction occurs. All of geomembranes had no permeability to water and reach 100% of hydrophobicity. The highest­ tensile test value was shown by geomembrane with 0,25 b/b% of BHT which about 21.235 MPa and 16.01 MPa for before and after soil burial test for four weeks, respectively. Perhaps might be due to the interaction between BHT at low concentrations which has lower polarity and HDPE which is nonpolar has better compatibility than at other concentrations
AKTIVITAS ANTIINFLAMASI EKSTRAK BIJI PINANG (Areca catechu L.) MENGGUNAKAN METODE STABILITAS MEMBRAN RED BLOOD CELL (RBCs) (ANTI-INFLAMMATORY ACTIVITIES OF ARECA (Areca catechu L.) FRUIT SEED EXTRACTS USING RED BLOOD CELL (RBCs) MEMBRANE STABILITY METHOD) Banan Fitriani; Harlia Harlia; Andi Hairil Alimuddin
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 1 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i1.61936

Abstract

Areca catechu L. belongs to the Arecaceae which has been widely developed as a raw material for cosmetics industries. Areca nut contains many bioactive compounds, one of which is anti-inflammatory. In this study, the anti-inflammatory activity of betel nut extract was tested using the Red Blood Cell membrane stability method. The results of phytochemical screening showed that areca nut contains flavonoid compounds. Partitioning was carried out with n-hexane, dichloromethane solvents. Partition results obtained fraction of n-hexane 1.442 g with a yield of 5.546%; fraction of dichloromethane 5.831 g with a yield of 22.427%; fraction of ethyl acetate 0.470 g with a yield of 1.807%; and fraction of methanol was 3.432 g with a yield of 13.200%. The results of the anti-inflammatory activity test showed that the highest percent value of hemolysis inhibition was in the 100 g/mL concentration of methanol extract, which was 77.693% compared to the partitioned fractions such as the n-hexane fraction 10.215%; dichloromethane fraction 75.713%; ethyl acetate fraction 73.218% and methanol fraction 48.130%. This value can be said to be good if it approaches or exceeds the positive control of diclofenac sodium, which is 89.613%. The data from this study showed that methanol extract, fraction dichloromethane and fraction ethyl acetate had the best potential as an anti-inflammatory because the percentage of hemolysis was close to positive control

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