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Development of Arduino Uno Based Multispectra Colorimeter For Formaldehyde Determination Anida, Choirun Nisa; Zulfikar, Zulfikar; Siswoyo, Siswoyo; Asnawati, Asnawati; Reza, Muhammad
Indonesian Chimica Letters Vol. 4 No. 1 (2025)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/icl.v4i1.5693

Abstract

Formalin is a hazardous substance that is often misused as a food preservative, so routine formalin analysis is very necessary for public safety. Formalin analysis generally uses spectrophotometry and also a simple colorimeter. Currently, many Arduino-based colorimeters are being studied and development with RGB (Red, Green, Blue) LED (Light Emitting Diode) light sources. This research is also in this field with a focus on the use of multi-spectral RGB LED lights with 16 colors that are already commercially available. The multispectral colorimeter is designed by integrating an LED light source, a photodiode module as a detector, and controlled by an Arduino Uno R3. The LED light module circuit, cuvette and detector photodiode are then arranged and packaged in an X8 project box. Optimization of the circuit is studied including the distance between the LED lamp and the cuvette and the photodiode with the cuvette. A feasibility study of the use of multispectral RGB LEDs is also carried out by looking at the stability of the response of each color. The performance test of the multispectral colorimeter is carried out by analyzing formaldehyde oxidized with hydrogen peroxide using methyl red as an indicator under the alkaline condition. The results showed no significant difference when viewed from the linearity, Limit of Detection, Limit of Quantitation, sensitivity, and precision values calculated from the calibration curve. The difference in linearity values was 0.0013, Limit of Detection = 0.17, Limit of Quantitation = 0.57, sensitivity = 0.0001, and precision (SD = 0.001 and %RSD = 0.11).
Penguatan Literasi Ekonomi Syariah Masyarakat melalui Pendampingan di BMT Terate Jaya Palang Purnamasari, Diana Nur Indah; Siswoyo, Siswoyo; Supriyanto, Supriyanto; Cahyati, Yuni
Jurnal Pengabdian Masyarakat Bangsa Vol. 3 No. 7 (2025): September
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v3i7.2996

Abstract

Kegiatan pengabdian masyarakat ini dilaksanakan dengan tujuan meningkatkan literasi ekonomi syariah masyarakat melalui optimalisasi peran BMT Terate Jaya Palang sebagai lembaga keuangan mikro syariah. Literasi ekonomi syariah menjadi hal penting dalam memperkuat pemahaman masyarakat terhadap prinsip-prinsip muamalah Islam serta praktik pengelolaan keuangan yang sesuai syariah. Metode pelaksanaan kegiatan dilakukan melalui sosialisasi, edukasi, pelatihan, dan pendampingan usaha bagi anggota dan masyarakat sekitar. Hasil kegiatan menunjukkan bahwa program ini mampu meningkatkan pemahaman masyarakat mengenai prinsip dasar ekonomi syariah, mendorong kemandirian usaha mikro, serta memperkuat peran BMT sebagai mitra strategis dalam pemberdayaan ekonomi berbasis syariah. Dengan demikian, pengabdian masyarakat ini berkontribusi pada peningkatan kesadaran, inklusi keuangan syariah, dan kemandirian ekonomi masyarakat.
Hubungan Usia dan Jenis Kelamin dengan Tekanan Darah Serta Kadar Glukosa Darah pada Masyarakat di Desa Made Kota Surabaya Khamidah, Nur; Anggraini Soetedjo, Farida; Falerio Kristijanto, Johanes Aprilius; Siswoyo, Siswoyo
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 3 (2025): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v5i3.3251

Abstract

Co-Authors AA Sudharmawan, AA Adilla, Asmia Safaatul Ahmad Soleh ahmad yani Akbar Bayu Kresno Suharso Akhmad Maliki Alexander, Ongky ALief, Jajang Nur Andi Pasinringi Anggraeni, Laela Ani Diana, Ani Ani Susanti Anida, Choirun Nisa Apripurnomo, Surya Apriyanto, Dimas AR, Muhamad Habibullah Ardiyana, Rima Rafisa Arman Arman Asnawati Asnawati aswad, fatqul hajar Aulyah, Feny Ayuda, Rahma Nur Az-Zuhri, Miratul 'Uzaimah Aziza, Tamara Azhar Badrun Badrun Bambang Tri Atmojo Bangun Muljo Sukojo, Bangun Muljo Budi Setiadi, Budi Budi Utomo, Heri Cahyati, Yuni Chandra, Danang Surya Chandra, Florencia Ariesta Damayanti, Elok Debora Debora Deru, Arnolda Devie, Shofia Hanum Articha Dewi, Dwi Puspita Dian Pratiwi Dian, Rustyawati Dwi Putri Wulandari Endang Koestati Sri Harini Muntasib Ervizal AMZU Fadhli, Harun Fadjrianto, Arifin Pratama Falah, Fajrul Farida Anggraini Soetedjo Fatma Yuniarti Fatma Yuniarti, Fatma Fatqul Hajar Aswad Fitri Wulandari Fitri Wulandari Freitas, Joaozinho Gunawan Gunawan Habinuddin, Endang Hafan Sutawardana, Jon Hardilah, Febriola Hari Purnama, Hari HARYANTO Hasan Basri Hendra Kurniawan Hidayatulloh, Hidayatullah Huda Verdian, Aldi Ibrahim G, Ibrahim Ilman, Sofyan M. Iskandar Iskandar Jamalie, H. Zulfa Jannah, Siti Miftakhul Johanes Aprilius Falerio Kristijanto Judijanto, Loso Juhri, Juhri Kariima, Ninna Nursakhna Keke, Celsilya Iryon Kirom, Ikhwanul Kusumaningtyas, Prasita Kuswoyo, Bahed Edi Latifa Aini S., Latifa Aini Layla Hafni Lisdwiana Kurniati, Lisdwiana Liza Megawati Lorinanto, Willy M. Abdullah M. Badrun, M. Badrun Maghfiroh, Rahmawati L. Mahmuda Noor, Nuning Maimunah, Karismatul Maskuro, Indah Sofiatul Maulidah Muflihah, Yeni Maulidah, Kharisma Maya Miftahul Huda Milinia, Nola Pebriyanti Mintadi, Mukh. Miranda, Miranda Mudinillah, Adam Muhamad Fauzi Muhamad Zulfatul A’la Muhammad Fauzi Muhammad Reza Muhammad Rusdi Muhammad Syahroni Mujiburrohman Mujiburrohman Mulia Hakam Murtaqib Murtaqib Nadi, Viki Nasri, Halik Neran Neran Nia Saurina Nistiandani, Ana Nopriyanto, Dwi Erry Novita Eka Tristiana Nur Hidayatul Istiqomah Nur Khamidah Nur Khamidah Nur Widayati Nurul Muftofiah Roisatin, Nurul Muftofiah Ongky Alexander Pindo Witoko Priorwirjanto, Gatot Hari Purnama, Shiddiq Purnamasari, Diana Purnamasari, Diana Nur Indah Puspito N.T, Puspito Putri, Rahma Windy Sah Qomariyah, Siti Istiul Rahayu, Yunie Ramdani, Ramdan Wahyu Retnawati, Lestari Risdiyanti, Alya Rita Rostika Rochmah, Lilis Nur Romadon, Romadon Roymond H. Simamora, Roymond H. Ruris Haristiani Sandria, Wella Sarip Sarip Saroso S, Saroso Septiana, Rinda Setiawan, Peldi Silvi Diyanti Mala Soepriyono, Soepriyono Sofiah, Rizqyatus Suaidi, Ahadi Sudrajat Sudrajat Sulistianingsih, Eka Sunarto Sunarto Supriyanto Supriyanto Surya Primaswara, Alfisa Surya Safari SD Susilawati , Esti Syaiful Anwar Sya’roni , Ahmad Imam Tri Yuni Hendrowati Trisnawiyana, Trisnawiyana Utami, Pajrina Wahyudi, Natanael Wahyudin, Roviq Wardhani, Devina Novita Widyastuti, Fitria Agustin Wijayanti, Chatarina Yazid, Syahrul Abdul Yomi Sumbala, Yomi Sumbala Zulfikar Zulfikar