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JKPK (Jurnal Kimia dan Pendidikan Kimia)

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Published by Universitas Sebelas Maret

ISSN : 25034146 EISSN : 25034154 DOI : -

Core Subject : Science, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry

The JKPK (Jurnal Kimia dan Pendidikan Kimia) is a national journal, published three times a year in April, August, and December, containing research articles on Chemistry and Chemistry education.

Arjuna Subject : -

Articles 255 Documents

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The Determination of Metals and Minerals Contains in The Water of Pucung River, Prehistoric Site Sangiran, Central of Java Agung Rimayanto Gintu; Cucun Alep Riyanto; Widhi Handayani; Andri Purnomo; Stefanus Agung Wicaksono
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v4i1.25250

Sangiran was an important prehistoric site heritage for Indonesia. Entire site area was living environment once pass by several rivers, one of them was Pucung river. This study was approaching study from water environment by measuring metals and minerals contained in the water from Pucung river and measured that Iron (Fe) containend was 0,01mg/L; Zink (Zn) 0,02mg/L; Nickel (Ni) 0,00mg/L; Mangan (Mn) 0,00mg/L; Chrom (VI) (Cr6+) 0,009mg/L; Aluminium (III) (Al3+) 0,00mg/L and Copper (Cu) 0,01mg/L. From the minerals containing measured that Phosphate (PO4) 0,37mg/L; Nitrate (NO3-) 0,8mg/L; Nitrite (NO2-) 0,001mg/L; Chloride (Cl-) 0,01mg/L; Fluoride (F-) 0,00mg/L; Sulphide (S2-) 0,0µg/L; Sulphate (SO42-) 6,00mg/L; and N as N-NH3 (Ammonia) 0,05mg/L. This studi continuing the study before wich are just limiting to studying the river stratigraphy..

Optimation of NaOH Catalyst Consentration on 1,3-Diphenyl-2-propen-1-on Synthesis Using Microwave-Assisted Organic Synthesis (MAOS) Method Iin Narwanti; Narendra Bagus Kusumajati
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v4i1.25790

with a variation of NaOH catalyst concentration has been done. The purpose of this study was to determine the concentration of NaOH catalyst in the synthesis of 1,3-diphenyl-2-propen-1-on using MAOS method which produced optimal yield. The synthesis of 1,3-diphenyl-2-propen-1-on using benzaldehyde and acetophenone was carried out using the MAOS method with NaOH catalyst. The variation of NaOH catalyst concentration was 10%, 20%, 30%, and 40%. Microwave radiation was carried out at 140 watts for 20 seconds. The purity of the synthesized 1,3-diphenyl-2-propen-1-on was tested by melting point, TLC, and gas chromatography. The structure of the synthesized 1,3-diphenyl-2-propen-1-on was characterized by FTIR, GC-MS and NMR. The results showed that the compound 1,3-diphenyl-2-propen-1-on can be synthesized from benzaldehyde and acetophenone using MAOS method. The obtained yield at varying catalyst concentrations of 10, 20, 30 and 40% were (50.58±1.84%, (69.20±1.58)%, (84.55±1.50)% and (90.60±0.96)%, respectively. The concentration of 40% NaOH catalyst produces the most optimal yield of synthesis products.

Theoretical Modification of Cyanidin as Sensitizers in Dye Sensitized Solar Cell (DSSC) Using Rhodanine Acetic Acid as Electron Withdrawing Group Sudarlin Sudarlin
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Modification of cyanidin as sensitiser on Dye Sensitized Solar Cell (DSSC) has been carried out theoretically in this study using rhodanine acetic acid. The rhodanine acetic acid as electron withdrawing group can increase the electron density of the LUMO state, so injection of the excited electron to the semiconductor can also be increase. The theoretical method used is DFT/B3LYP theory by NWChem software. The calculation shows that the LUMO energy of cyanidin rhodanine acetic is higher than cyanidin, so electron injection to the conduction band of the semiconductor is easier. This condition is supported by reduced of HOMO-LUMO energy gap, so the range of the sunlight that can be involved in the electron excitation process is wider. In addition, the LUMO electron density of the cyanidin rhodanine acetic is localized at rhodanine acetic which makes the distance of the excited electron is closer to the semiconductor, thereby facilitating electron injection.

Analysis of Chloride Levels in Well and PDAM Water in Ngelom Village, Sidoarjo Khoirul Ngibad; Dheasy Herawati
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Chloride is an anion that dissolves easily in water samples and it is the main inorganic anion founded in water samples. Excess of chloride ions in drinking water can damage the kidneys. The aims of this study is to determine chloride levels in well and PDAM water samples in Ngelom Village. Determination of chloride levels in water samples using the Mohr argentometric titration method. The samples used was well water and PDAM water, each was taken from 20 locations in Ngelom Village. The samples were mixed with K2CrO4 indicator and then were titrated using the silver nitrate standard solution until the end point of the titration was marked with a brick red color. The results of the analysis of chloride levels in well water of 92 to 491 mg/L and in PDAM of 57 to 230 mg/L. Based on these results, it can be concluded that chloride levels in both well water and PDAM water samples were below maximum threshold which appointed in Permenkes RI No. 416/Menkes/Per/IX/1990 (≤600 mg/L).

Cinnamon Oil as an Antibacterial Agent on Natural Paper from Banana Peel (Musa paradisiaca Linn.) Widiastuti Agustina Eko Setyowati; Elfi Susanti VH; Iis Alviah; Melati Kusuma Wardani
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

The research about the use of cinnamon oil as an antibacterial agent on natural paper from Banana (musa paradisiaca Linn.) Peel has been conducted. The preparation of the paper using alkalization method, with the use of NaOH 4% at the temperature of 100oC for 1.5 hours. The paper is made in two variations, ie with additive cinnamon oil and without additive. The natural paper produced are tested for pH based on SNI ISO 6588-1.2010 and water content by dry-oven method based on SNI ISO 287:2010. The antibacterial activities were tested against Staphylococcus aureus and Escherichia coli using Kirby-Bauer disc diffusion method. The paper produced meet the standard of ISO 6519:2016 about Basic Paper for Laminated Plastic Wrapping Paper within the parameter of pH and water content. The results showed that the paper with additive cinnamon oil have antibacterial activity againts S. aureus and E. coli with inhibition diameter zone 15 mm and 13 mm respectively, whereas paper without cinnamon oil additives has no antibacterial activity against either S. aureus or E. coli. These result indicate that cinnamon oil can be used as an antibacterial agent on the natural paper from Banana peel (musa paradisiaca Linn.).

Social Emotional Learning in Chemistry Learning : Group Investigation dan Contextual Learning Integration to Develop Student’s Social Emotional Competencies Maulidya Virginanti; Yuli Rahmawati; Fera Kurniadewi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v4i1.13142

This article presents the results from integrating Social Emotional Learning (SEL) through cooperative learning and contextual approach in chemistry learning. This study was conducted on 10th-grade students in the academic year of 2016/2017. Collaborative learning, as well as the use of real-life scenario, are some of the teaching practices for facilitating Social Emotional Learning (SEL) and promotes students' social-emotional competenciesthat aligned with affective competencies in Indonesia’s 2013 curricula. The proposed teaching practices also answer the challenges faced by the implementation of the 2013 curricula, finding proper teaching practices to integrate to develop student’s character through learning activity. The empirical work of the study is based on a qualitative approach. Six Group Investigation’s stage integrated with the use of real-life scenario was analyzed through various method such as observations, interviews, reflective journals, and student’s worksheets answer. The results found that students showed positive attitudes and perspective’s change towards chemistry learning, establish positive relationship with peers, cooperative skill, tolerance, and responsible decision making by considered himself, others, and community within the learning process.

Determination Stability of 99mTc-Etambutol Radiopharmaceuticals for Tuberculosis Detected Anna Roseliana; Witarti Witarti; Enny Lestari; Maula Eka Sriyani; Widyastuti Widjaksana
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v4i1.22364

99mTc-ethambutol radiopharmaceutical is a diagnostic kit based on the anti-tuberculosis drug, ethambutol, labeled with radioactive tracer 99mTc. This radiopharmaceutical is a result of research development in Centre for Radioisotope and Radiopharmaceutical Technology, BATAN. 99mTc-ethambutol radiopharmaceutical in the hospital used as a diagnostic agent for tuberculosis detected, particularly tuberculosis in extra pulmonary organs that is not easily detected by existing conventional methods. The aim of study to find out how stable ethambutol kit when stored at certain temperature and how stable ethambutol stability after labelled with 99mTc. These stability data are required by hospitals which used 99mTc-ethambutol . The stability test performed by measuring the radiochemical purity of ethambutol kits which were stored at certain time period and labelled with 99mTc using thin layer chromatography (TLC) method. Radiochemical purity tests were also performed on 99mTc-ethambutol at certain time period after its labeling process. Based on experiment results, it was obtained that ethambutol kit was still stable for up to 9 months when stored at refrigerator temperature 8 oC with percentage of radiochemical purity average > 85% and up to 11 months when stored in deep freezer temperature -80 oC with percentage of radiochemical purity average 90%. While 99mTc-ethambutol was still stable for up to 4 hours after labeling with percentage of radiochemical purity more than > 85%.

Back Mater JKPK Jurnal Kimia dan Pendidikan Kimia
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Identification of Students Misconception Using Two-Tier Diagnostic Test Completed with Certainty of Response Index (CRI) on Topic Partial Salt Hydrolysis Tomas Istantyo Putro; Sri Retno Dwi Ariani; Sri Yamtinah
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 2 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

This study’s aim was to find misconception pattern on partial salt hydrolysis on eleventh grade student science major at SMA Negeri 2 Sukoharjo. Misconception was identified using two-tier diagnostic test completed with CRI supported by observation on learning process also interview. Two-tier diagnostic test composed of 16 questions. The approach of this study was qualitative description which was held in February-June 2018. The subject of this study were the eleventh grade students class IPA 1 and IPA 4 as many as 72 students. According to the result showed that there was misconception on almost every concept’s part. Based on the student answer analysis result shows if the pH, relative atomic mass, and volume were known student were having biggest misconception on counting salt’s mass are, 75%. The reason of misconception that occurs on partial salt hydrolysis is come from the student it self that is student’s uncomplete reasoning pattern.

Comparison Study Between Local TSH IRMA Kit (CRRT) and Imported TSH IRMA Kit (Riakey, Korea) Mondrida, Gina; Triningsih, Triningsih; Purwanti, Kristina Dwi; Sutari, Sutari; Setyowati, Sri; Yulianti S, V.; Lestari, Wening; Ariyanto, Agus; Widayati, Puji
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 2 (2019): JKPK ( Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Thyroid Stimulating Hormone (TSH) is one of hormones that our body need for growth of brains, bones and other tissues and regulate the metabolism in the body. Normal range of TSH for adult is from 0.3 to 5.5 µIU/ml, whereas for baby ranged from 3 to 18 µIU/ml. An Immunoradiometricassay (IRMA) is one of immunoassay technique using radionuclide as the tracer to detect low quantity of analyte. This technique is suitable for determine TSH levels in human blood serum which has complex matrix and various concentration. The Center for Radioisotope and Radiopharmaceutical Technology (CRRT)-BATAN has developed a reagent of TSH IRMA kit. The aim of this research is to compare between local TSH IRMA kit (CRRT-BATAN) and imported TSH IRMA kit (Riakey, Korea) toward 110 adult samples obtained from PTKMR - BATAN. The results showed 97 samples as true negative, 5 samples as true positive, 1 sample as false negative and 7 samples false positive. The comparison study gave diagnostic sensitivity as much as 83.33 %, diagnostic spesificity as much as 93.27 % and accuracy as much as 92.72 %.

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