Search Results - "Rohaeti, Eti"

A facile electrochemical sensor based on composite of electrochemically reduced graphene oxide and PEDOT:PSS modified glassy carbon electrode for uric acid detection by PUTRA, Budi R., NISA, Ulfiatun, HERYANTO, Rudi, ROHAETI, Eti, KHALIL, Munawar, IZZATADDINI, Arini, WAHYUNI, Wulan T.

“…A glassy carbon electrode modified with electrochemically reduced graphene oxide (ErGO) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)…”
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A Sensor (Optode) Based on Cellulose Triacetate Membrane for Fe(III) Detection in Water Samples by Arif, Zulhan, Sugiarti, Sri, Rohaeti, Eti, Batubara, Irmanida

“…Iron is a heavy metal that often contaminates water. High iron concentrations are toxic to human health, so monitoring its presence in water is necessary. Iron…”
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Electrochemical sensors for simultaneous detection of dopamine and uric acid based on a composite of electrochemically reduced graphene oxide and PEDOT:PSS-modified glassy carbon electrode by Ta'alia, Shafa Aini Hasnawati, Rohaeti, Eti, Putra, Budi Riza, Wahyuni, Wulan Tri

“…[Display omitted] Herein, we report the development of a successful electrochemical sensor based on a composite of electrochemically reduced graphene oxide…”
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FTIR-based Fingerprinting and Chemometrics for Rapid Investigation of Antioxidant Activity from Syzygium polyanthum Extracts by Rohaeti, Eti, Karunina, Fadila, Rafi, Mohamad

“…Syzygium polyanthum, known as salam in Indonesia, which is rich in phenolics compounds with high antioxidant activity. In this study, we performed the…”
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Phosphorus Fractionation in The Sediment of Kendari Bay, Southeast Sulawesi, Indonesia by Aisyah, Siti, Rohaeti, Eti, Santoso, Arianto Budi, Rafi, Mohamad

“…Information about the chemical structure of the phosphorus (P) fraction in sediments is very important for identifying the bioavailability of P and…”
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Synthesis of Cu2O, Cu2O/Charcoal, and Cu2O/Activated Charcoal Composites as Antibacterial Agents by Abidin, Zaenal, Rahmawati, Wahyu Riski, Arief, Irma Isnafia, Rohaeti, Eti

“…The excessive use of antibiotics to treat bacterial infections can lead to bacterial resistance, necessitating other antibacterial agents as alternatives. This…”
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A Simple Approach to Fabricate a Screen-Printed Electrode and Its Application for Uric Acid Detection by Wahyuni, Wulan Tri, Putra, Budi Riza, Heryanto, Rudi, Rohaeti, Eti, Yanto, Dede Heri Yuli, Fauzi, Achmad

“…In this work, we present the development of a simple technique for the easy fabrication of a homemade screen-printed carbon electrode (SPCE) and its analytical…”
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Antibacterial Activity of Jojoba Seed residue and Its Possible Active Compound by Batubara, Irmanida, Siahaan, Arnold Patogi, Rohaeti, Eti, Muddathir, Ali Mahmoud

“…Jojoba (Simmondsia chinensis) (Link) C.K. is a shrub plant widely used in cosmetics, especially jojoba oil. The residue will remain when producing jojoba oil…”
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A Novel Approach to Fabricating a Screen-Printed Electrode Based on a Gold Nanorod–Graphene Oxide Composite for the Detection of Uric Acid by Wulan Tri Wahyuni, Hana Safitri, Eti Rohaeti, Munawar Khalil, Budi Riza Putra

“…In this study, we report the development of a technique to fabricate a screen-printed electrode (SPE) and apply it in uric acid sensing. The SPE was fabricated…”
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Thin Layer Chromatography Fingerprint Analysis of Tempuyung (Sonchus arvensis L.) by Fauziah, Sri, Melati, Puput, Mulyati, Ade Heri, Rafi, Mohamad, Rohaeti, Eti

“…Thin layer chromatography (TLC) fingerprint profile analysis can be used for quality control of herbal medicinal raw materials through identification,…”
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LC-HRMS-Based Metabolomics for Profiling the Metabolites in Different Plant Parts of Centella asiatica by Rafi, Mohamad, Madya, Muhammad Miftahul, Karomah, Alfi Hudatul, Septaningsih, Dewi Anggraini, Ridwan, Taopik, Rohaeti, Eti, Aisyah, Siti, Idroes, Rinaldi

“…Centella asiatica, or pegagan in Indonesia, is a perennial plant used in Indonesian traditional medicine (jamu) and functional food with many biological…”
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Antioxidant, Cytotoxic, and Insulinotropic Activities of Several Leaves Extracts of Medicinal Plants by Marzanti, Amelia, Aprianti, Riska Widya, Mariya, Silmi, Noviana, Rachmitasari, Rohaeti, Eti, Suparto, Irma Herawati

“…The prevalence of diabetes mellitus and cancer is increasing; thus, research into efficient treatments utilizing active compounds derived from medicinal plants…”
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Fast Analytical Method for Authentication of Chili Powder from Synthetic Dyes Using UV-Vis Spectroscopy in Combination with Chemometrics by Rohaeti, Eti, Muzayanah, Khoirotul, Septaningsih, Dewi Anggraeni, Rafi, Mohamad

“…Chili is widely used in many food products, especially in Indonesia food. Sometimes a synthetic dye, i.e., rhodamine B or red textile dye were found in…”
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Structural and Electrical Properties of Silica Materials from Rice Husks by Casnan, Purnawan, Noor, Erliza, Hardjomidjojo, Hartrisari, Irzaman, Rohaeti, Eti, Kurniawan, Aditya

“…This study aimed to analyze the structural and electrical properties of silica from rice husks recovered by the process of ashing on a medium-scale furnace…”
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The Effect of Different Hydroponic Types and Nutrient Concentrations on the Chemical Composition and Antioxidant Capacity of Purwoceng (Pimpinella pruatjan) Extract by Batubara, Irmanida, Asoka, Shadila Fira, Sumarni, Eni, Suhardiyanto, Herry, Solahudin, Mohamad, Widodo, Slamet, Supriyanto, Rohaeti, Eti, Yudiwanti, Laumal, Folkes, Erniati

“…Purwoceng (Pimpinella pruatjan) is an Indonesian native plant but difficult to cultivate. Hydroponics can be used as a solution for purwoceng cultivation…”
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An HPLC-DAD Method to Quantify Flavonoids in Sonchus arvensis and Able to Classify the Plant Parts and Their Geographical Area through Principal Component Analysis by Khuluk, Rifki Husnul, Yunita, Amalia, Rohaeti, Eti, Syafitri, Utami Dyah, Linda, Roza, Lim, Lee Wah, Takeuchi, Toyohide, Rafi, Mohamad

“…A simple and efficient method has been developed for the simultaneous determination of eight flavonoids (orientin, hyperoside, rutin, myricetin, luteolin,…”
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Gum Benzoin (Styrax benzoin) as Antibacterial against Staphylococcus aureus by Asih Gayatri, Eti Rohaeti, Irmanida Batubara

“…Gum benzoin (Styrax benzoin) is one of nontimber forest product classified into the resin group. The aim of the study was to determine the component from gum…”
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Secondary Metabolites and Antioxidant Activity of Purwoceng (Pimpinella Pruatjan) Root Extracts from Various Hydroponic Planting Techniques by Batubara, Irmanida, Asoka, Shadila Fira, Sumarni, Eni, Suhardiyanto, Herry, Solahudin, Mohamad, Widodo, Slamet, Supriyanto, Supriyanto, Rohaeti, Eti, Wahyu, Yudiwanti, Laumal, Folkes, Erniati, Erniati

“…Purwoceng (Pimpinella pruatjan) is Indonesia’s native herbs that grow in the highlands but its existence is hard to find. The reason is that purwoceng is…”
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Uric Acid Sensor Based on PEDOT:PSS Modified Screen-Printed Carbon Electrode Fabricated with a Simple Painting Technique by Wahyuni, Wulan Tri, Heryanto, Rudi, Rohaeti, Eti, Fauzi, Achmad, Putra, Budi Riza

“…A screen-printed carbon electrode is a suitable electrode for electrochemical sensors due to its simplicity and portability. This study aimed to fabricate a…”
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FTIR-based fingerprinting combined with chemometrics for discrimination of Sonchus arvensis leaves extracts of various extracting solvents and the correlation with its antioxidant activity by Rafi, Mohamad, Rismayani, Winda, Sugiarti, Rita Merisa, Syafitri, Utami Dyah, Wahyuni, Wulan Tri, Rohaeti, Eti

“…Sonchus arvensis, the local name for tempuyung, is acknowledged to have many biological activities, including the antioxidant activity. This study aimed to…”
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