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All Journal Jurnal Pendidikan Kimia Indonesia Jurnal Entropi Alchemy : Journal of Chemistry The Journal of Pure and Applied Chemistry Research Jurnal Zarah Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jambura FIsh Processing Journal Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Experiment: Journal of Science Education Indonesian Journal of Chemistry and Environment Nautical: Jurnal Ilmiah Multidisiplin Indonesia Indonesian Biodiversity Journal Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Indonesian Biodiversity Journal
Hendri Iyabu
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Veterinary Other

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Mengevaluasi Level Pemahaman Konsep Hidrolisis Garam Peserta Didik Menggunakan Tes Diagnostik Pilihan Ganda Empat Tingkat Suteno, Ivani Kusnadi; Laliyo*, Lukman Abdul Rauf; Iyabu, Hendri; Abdullah, Romario
Jurnal Pendidikan Sains Indonesia Vol 9, No 3 (2021): JULY 2021
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v9i3.20543

Abstract

The ability of students to understand and use concepts is the main key in scientifically explaining various chemical phenomena in nature. This ability develops relatively, often with the development of the learner level. This study aims to understand the level of understanding of the concept of salt hydrolysis of class XI high school students and chemistry students in the I, II, III and IV years and non-chemistry students with a total sample of 875 respondents. The instrument used in this study was a four-level multiple choice test. This diagnostic test combines the measurement of knowledge and reasoning with the level of self-confidence, as a reflection of the level of mastery of concepts. The data analysis technique used is quantitative, using SPSS 25 software, namely the non-parametric test (Kruskal Wallis test), comparing the significance value (Asmp. Sig) with a probability of 0.005. The results showed that the significance value of 0.00 was less than 0.05; That is, there is a significant difference in the level of understanding of the salt hydrolysis concept of students. The level of understanding of the concept of high school students is better than the first, second, third, and fourth year students in chemistry and non-chemistry students. These findings reinforce the story that although students have experienced learning experiences at a higher level, it does not guarantee the development of mastery of understanding the concept of hydrolysis
Analisis merkuri, timbal, kromium dan kadmium pada air minum isi ulang Desa Dulupi menggunakan metode SSA Labuga, Ditawati; Mohamad, Erni; Iyabu, Hendri
Nautical : Jurnal Ilmiah Multidisiplin Indonesia Vol. 4 No. 3 (2025): Nautical: Jurnal Ilmiah Multidisiplin Indonesia (Inpress)
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/0qfz5p67

Abstract

Penelitian ini bertujuan untuk mengetahui adanya logam serta jumlah kadar logam berat merkuri, timbal, kromium, dan kadmium pada air minum isi ulang di Desa Dulupi. Air minum merupakan kebutuhan pokok bagi masyarakat, namun kualitasnya sering kali terancam oleh pencemaran logam berat yang dapat membahayakan kesehatan. Penelitian ini menggunakan metode sampel gabungan tempat (integrated sample) dengan mengambil sampel air baku dan hasil olahan dari depot air minum yang terletak di beberapa titik di Dusun 1 Jambura dan Dusun 3 Sambati. Metode yang digunakan dalam penelitian ini meliputi metode kualitatif dan kuantitatif. Untuk analisis kualitatif, digunakan 3 reagen, yaitu KI, NaOH, dan H2O2, sedangkan untuk analisis kuantitatif, digunakan instrumen Spektrofotometer Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa pada uji kualitatif, terdapat sampel yang terbukti mengandung logam timbal dan kromium, khususnya pada sampel A2.2 yang diambil dari air olahan depot di Dusun 1 Jambura. Selain itu, pada uji kuantitatif, kadar logam timbal juga terdeteksi pada sampel tersebut dengan kadar 0.0012  mg/L. Penelitian ini menekankan pentingnya pengawasan kualitas air minum isi ulang untuk memastikan bahwa air yang dikonsumsi oleh masyarakat aman dan memenuhi standar kesehatan yang ditetapkan.
HEAVY METAL CONTAMINATION IN WATER SOURCES IN POHUWATO REGENCY: IMPLICATIONS FOR BIODIVERSITY AND PUBLIC HEALTH IN GOLD MINING AREAS Iyabu, Hendri; Baderan, Dewi Wahyuni K; Hamidun, Marini Susanti; Rahim, Sukirman; Rauf, Asda
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/j135j237

Abstract

Artisanal and small-scale gold mining (ASGM) can increase the levels of heavy metals in surface water and groundwater sources. This study was conducted to evaluate water quality in Pohuwato Regency, Gorontalo, Indonesia. Sampling was performed at three sites: a reservoir, an irrigation channel, and a well. The concentrations of lead (Pb), cadmium (Cd), iron (Fe), manganese (Mn), and mercury (Hg) were analyzed using Atomic Absorption Spectrophotometry (AAS). The results indicated that Hg concentrations ranged from 0.00883 to 0.01493 mg/L (≈8.8–14.9× above the WHO guideline value of 0.001 mg/L), Mn concentrations ranged from 0.1309 to 0.543 mg/L (≈1.3–5.4× above the WHO guideline value of 0.1 mg/L), while Pb concentrations ranged from 0.0019 to 0.0048 mg/L, Cd concentrations ranged from 0.0002 to 0.0006 mg/L, and Fe concentrations ranged from 0.0728 to 0.101 mg/L, all of which were below the recommended threshold values for drinking water. The findings emphasize the importance of mitigation strategies based on mining governance, strengthening water safety plans, as well as interventions for household water treatment (adsorption/filtration) and risk communication.
HEAVY METAL CONTAMINATION IN WATER SOURCES IN POHUWATO REGENCY: IMPLICATIONS FOR BIODIVERSITY AND PUBLIC HEALTH IN GOLD MINING AREAS Iyabu, Hendri; Baderan, Dewi Wahyuni K; Hamidun, Marini Susanti; Rahim, Sukirman; Rauf, Asda
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/j135j237

Abstract

Artisanal and small-scale gold mining (ASGM) can increase the levels of heavy metals in surface water and groundwater sources. This study was conducted to evaluate water quality in Pohuwato Regency, Gorontalo, Indonesia. Sampling was performed at three sites: a reservoir, an irrigation channel, and a well. The concentrations of lead (Pb), cadmium (Cd), iron (Fe), manganese (Mn), and mercury (Hg) were analyzed using Atomic Absorption Spectrophotometry (AAS). The results indicated that Hg concentrations ranged from 0.00883 to 0.01493 mg/L (≈8.8–14.9× above the WHO guideline value of 0.001 mg/L), Mn concentrations ranged from 0.1309 to 0.543 mg/L (≈1.3–5.4× above the WHO guideline value of 0.1 mg/L), while Pb concentrations ranged from 0.0019 to 0.0048 mg/L, Cd concentrations ranged from 0.0002 to 0.0006 mg/L, and Fe concentrations ranged from 0.0728 to 0.101 mg/L, all of which were below the recommended threshold values for drinking water. The findings emphasize the importance of mitigation strategies based on mining governance, strengthening water safety plans, as well as interventions for household water treatment (adsorption/filtration) and risk communication.
Co-Authors Abas, Ramona Nintias R. Abdullah, R. Abdullah, Romario Adjami, Eka Nur Fadliya Ahmad Kadir Kilo Akram La Kilo Andimala, Febriyanti Anita Muhammad Arviani Arviani Asda Rauf Astin Lukum Balong, Sulsitiawati Botutihe, Deasy N. Daing, Hardianti Dewi Wahyuni K. Baderan Djafar, Yuliyanti Wahab Djalil, Jhodi Pratama Doly Prima Silaban Erni Mohamad Haris Munandar Ishak Isa Ishka Isa Ismail, Siti Hardina Iswan Dunggio Ivani Kusnadi Suteno Jafar La Kilo Julhim S Tangio La Alio La Ode Aman Labuga, Ditawati Lasim, Windi Sulistiyani Luawo, Aprilia Lukman A. R. Laliyo Mangara Sihaloho Mantuli, Mohamad Alan Mardjan Paputungan Marini Susanti Hamidun Masrid Pikoli musa, weni ja Musa, Weny J. A. Najmah, Najmah Nani, Srimukmin Nento, Tia Dwi Lestari Netty Ino Ischak Ningkaula, T. A. Nita Suleman Nur'afni Suaib Nurhayati Bialangi Nurpatima, Nurpatima Opir Rumape Padi, Maryam Pakuna, Nurpepi Romario Abdullah Sabora, Ririn S. Samosir, Andeston Sumandoli Sarmini A Iladat Suchi Wulandari Dai Sukirman Rahim Suleman Duengo Supriadin, Yogi Suteno, Ivani Kusnadi Tiro, Lusiani La Verayana, Verayana warda, Sindy atteri Wisna Taniyo Wiwin Rewini Kunusa Wiwiyani, Wiwiyani Yuszda K Salimi