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All Journal Jurnal Ilmiah Teknik Kimia Jurnal Teknologi
Rhahmasari Ismet
Universitas Pamulang
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Penetapan Kadar Fe Gluconate dengan Metode Fe Fumarate Secara Spektrofotometri UV-Vis Rhahmasari Ismet; Bella Kavalena Raeis; Sriwulan Sriwulan
Jurnal Ilmiah Teknik Kimia Vol 6, No 1 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i1.15669

Abstract

The human frame requires macroelements and microelements. The system of blood formation is the synthesis of hemoglobin. Iron is a totally crucial microelement and is needed by using the body. one of the iron dietary supplements that may be consumed to save you and deal with iron deficiency is Ferrous Gluconate. Ferrous Fumarate and Ferrous Gluconate have the same function, but there are variations in the analytical method of assay. The purpose of this observation is to validate the method for figuring out the concentration of Fe Gluconate compounds in drug samples, while the approach used is UV-Vis spectrophotometry. approach validation turned into achieved earlier than assaying the pattern. Parameters within the validation technique used include specificity, device suitability, linearity, accuracy, precision, and LOD and LOQ. The consequences of the validation of the analytical approach showed precise results with the RSD acquisition of all test parameters acquired via a fee of < 2%. The values for the quantitation restrict (LOQ) and detection limit (LOD) additionally showed precise consequences, the LOD acquired became 6.920 ppm and the LOQ received changed to 23.067 ppm. in step with the meals and Drug management in 2001, the outcomes of the validation of the analytical approach on this study have met the standards and specifications, because numerous test indicators have met them. so that this method can be utilized in determining the levels of Fe Gluconate. dedication of Fe Gluconate degrees in drug samples obtained consequences with a median cost of 99.770%.
Penurunan Kadar COD (Chemical Oxygen Demand) Air Sungai Cisadane Menggunakan Metode Fenton Dina Adelina; Wiwik Indrawati; Aminudin Filosa; Rusnia Junisa Hakim; Agustina Dyah S; Rhahmasari Ismet; Nuke Yullia; Nurul Lita
Jurnal Teknologi Vol 26, No 1 (2026): April 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i1.8810

Abstract

The Cisadane River is one of the main water resources in Tangerang and surrounding areas. However, its water quality has declined due to domestic and industrial pollution, which increases the Chemical Oxygen Demand (COD) level. This study aimed to evaluate the effectiveness of the Fenton method in reducing COD levels in Cisadane River water and to determine the optimum reaction time for the treatment process. The experiment was conducted using 100 mL of river water sample treated with Fenton reagent consisting of FeSO₄ 0.3 M and H₂O₂ 0.8 M. The treatment was carried out at reaction times of 60, 120, 180, and 240 minutes, and COD levels were analyzed using a photometer. The results showed that the initial COD concentration of 495 mg/L decreased to 290 mg/L after 60 minutes, 195 mg/L after 120 minutes, 145 mg/L after 180 minutes, and 95 mg/L after 240 minutes. The highest COD removal efficiency was achieved at 240 minutes, with a reduction of 80.81%, and the final COD concentration met the domestic wastewater quality standard of 100 mg/L. In conclusion, the Fenton method was effective in reducing COD levels in Cisadane River water, with the optimum treatment time obtained at 240 minutes.
Co-Authors Agustina Dyah S Aminudin Filosa Bella Kavalena Raeis Dina Adelina Nuke Yullia Nurul Lita Rusnia Junisa Hakim Sriwulan Sriwulan Wiwik Indrawati