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All Journal Jurnal Kartika Kimia Jurnal Abdimas Kartika Wijayakusuma
Budiman, Senadi
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Journal : Jurnal Kartika Kimia

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Residual Content of Synthetic Pyrethroid Transfluthrin on Bed Sheets, Pillowcases, Bedroom Floors, and Development of Analytical Methods Using GC-MS Kamka, Vienna D.; Budiman, Senadi; Murniati, Anceu
Jurnal Kartika Kimia Vol 6 No 1 (2023): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v6i1.194

Abstract

Dengue Hemorrhagic Fever (DHF) is an infectious disease with high morbidity and mortality rates worldwide. Two-fifths of the population lives in areas prone to contracting the dengue virus in tropical and subtropical countries. In Indonesia, dengue disease is an endemic problem that spreads in 33 provinces. One way to prevent the transmission of DHF disease is to kill mosquitoes using mosquito repellent spray, electric or mosquito coils. Regular use of household aerosols for mosquito control is widespread, especially during outbreaks of dengue fever, chikungunya, and Zika. In this study, it will be proven whether, in the use of mosquito repellent made from active transfluthrin, the remaining residue attached to indoor items is still within safe limits if exposed to the skin or inhaled by humans. The purpose of this study was to determine the content of transfluthrin mosquito repellent pesticide residues on the surface of objects in the room still below the maximum limit required using the Gas Chromatography-Mass Spectrometry (GC-MS) tool as well as the development of measurement analysis methods for Lienarity, Recovery, Precision/Specivity, Quantitative Limit, and Detection Limit. The study's results on measuring Transfluthrin residues using GCMS with a data collection height of 100-200 cm obtained a concentration range of 22-149 mg/kg. Validation test of the analysis method obtained LOD: 0.005 (µg/ml), LOQ: 0.016 (µg/ml), RSD system conformance test: 0.118%, Linear Regression Linearity (r2): 0.99946, %Recovery: 102.00%, Placebo specificity: does not show a peak at Transfluthrin retention time.
Evaluation of Scan Rate Influence on Cyclic Voltammograms of Copper Electrodes Coated with PS-CS-GA/ZnO Nanocomposite Murniati, Anceu; Nur, Ilahi Hidayanti; Gumelar, Niki; Budiman, Senadi; Buchari, Buchari; Gandasasmita, Suryo; Nurachman, Zeily
Jurnal Kartika Kimia Vol 7 No 1 (2024): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v7i1.256

Abstract

Copper (Cu) is widely utilized as an electrode material due to its high conductivity and relatively low cost. This study aims to develop nanocomposite-modified Cu electrodes using polysulfone (PS), chitosan (CS), glutaraldehyde (GA), and zinc oxide (ZnO) to form PS-CS-GA/ZnO-NP modified Cu electrodes. The nanocomposite was prepared in the proportions of 48.8% PS, 24.4% CS, 24.4% ZnO, and 2.4% GA using the phase inversion method. The characterization of the PS-CS-GA/ZnO nanocomposite-modified Cu electrode was conducted using cyclic voltammetry with a 0.01 M K3[Fe(CN)6] in 0.1 M KCl. The cyclic voltammogram profile was obtained at a scan rate of 25 mV/s, exhibiting an ipa/ipc ratio of 0.93 within a potential of -1.5 to +0.4 V vs Ag/AgCl over 15 cycles. The FTIR spectrum of the PS-CS-GA/ZnO nanocomposite thin film displayed a peak at 1668 cm-1, indicating the presence of C=N groups, which suggests a cross-linking interaction between CS and GA.
Co-Authors Agma, Muljadji Agustini, Dewi Meliati Anceu Murniati Anggi Suprabawati Arie Hardian Buchari Buchari Gumelar, Niki Jasmansyah, Jasmansyah Kamka, Vienna D. Kusumaningtyas, Valentina Adimurti Lilis Siti Aisyah, Lilis Siti Mulyani, Rahmaniar Nur, Ilahi Hidayanti Purbaya, Sari Rinto Yusriski Safi'i, Abdi Wadud Sujono, Hernandi Suryo Gandasasmita Yenny Febriani Yun, Yenny Febriani Yuliana, Trisna ZEILY NURACHMAN