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All Journal International Journal of Renewable Energy Development BERKALA FISIKA Jurnal Ilmu Dasar POSITRON BERKALA SAINSTEK Jurnal Sains dan Teknologi Kimia P2M STKIP Siliwangi UNEJ e-Proceeding The Journal of Educational Development Warta Ardhia : Jurnal Perhubungan Udara Diksa : Jurnal Pendidikan Bahasa dan Sastra Indonesia Pedagogik Journal of Islamic Elementary School JURNAL PENDIDIKAN TAMBUSAI JURNAL KAJIAN TEKNIK SIPIL Ghancaran: Jurnal Pendidikan Bahasa dan Sastra Indonesia Logistik English Focus: Journal of English Language Education Jurnal Sisfotek Global Indonesian Journal of Global Health research Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Journal of English Language and Education Jurnal Abdi Masyarakat Indonesia Journal of Education Research Jurnal Pengabdian Masyarakat Fakultas Teknik: Jurnal Abditek Maritime Park: Journal Of Maritime Technology and Socienty ASEAN Journal of Empowering Community EJOIN : Jurnal Pengabdian Masyarakat Indonesian Chimica Letters

Tri Mulyono

Jurusan Kimia , FMIPA, Universitas Jember, Jember

Author-ID : 324885

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Simple Design Flow Analysis System for Determination of Iron by Spectrophotometric method Wiwin Setiani; Tri Mulyono; Asnawati Asnawati
Jurnal ILMU DASAR Vol 16 No 2 (2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The purpose of this research is to make a series of analyzes using a flow system with a bottle Marriote as pump and spectrophotometric method for determining the content of iron in water samples. Determination of iron by this method used 1,10-fenantrolin complexing or 2,2-bipyridyl. In this method, Fe3+ is reduced to Fe2+ prior complexed with iron to form a specific color and then flowed it through a marriote bottle next to the spectrophotometer detector. The average flow rate of the liquid in the bottle Marriote amounted to 0.037 mL / sec. Limit detection obtained in the batch is 0.00017 ppm and 0.00023 ppm in simple flow systems analysis methods. Sensitivity obtained in the batch method is 0.027 and the simple flow system analysis method is 0.035. Flow rate precision values are expressed Marriote bottle with Kv values <5%. Values accuracy expreced percenting of recovery was 99% in the batch method, whereas the simple flow system analysis method was 98.5%. Results of t-test analysts suggest that iron determination using flow systems analysis (FIA) with the replacement pump bottle Marriote not differ significantly from the results obtained with the batch system. Keywords: batch method, bottle Marriote, Flow Injection Analysis, spectrofotometry

Amperometric biosensor for glucose detection based-on immobilisation of glucose oxidase in acetic cellulose membrane using ferrocene as mediator Asnawati Asnawati; Dwi Indarti; Tri Mulyono; Gembong Kesuma B
Jurnal ILMU DASAR Vol 14 No 1 (2013)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The study reported the development of glucose ampherometric biosensor based on immobilization of glucose oxidase on cellulose acetate membrane with ferrocene as a mediator. Biosensor was designed with model Fc, GOx, CP / GOx / CA where ferrocene and the enzyme glucose oxidase on carbon paste in immobilizatin on the electrode body in the form of glass tubes and in other parts of the enzyme glucose oxidase in immobilizatin on cellulose acetate membrane with adsorption techniques are placed in electrode tip by using the o-ring. The presence of enzymes immobilization was determined quantitatively by enzyme immobilization was Km value. The results showed the composition of acetone-water in the optimum coagulation bath is 0:100% and 0,0008 g of Optimum ferrocene. Biosensor for measuring glucose in the area amperometri 0,1 to 3 mM with regression coefficient of 0,996, the detection limit of 0,01 mM, sensitivity of 0,989 μA / mM, the reproducibility of 0,07 to 0,3% and lifetime of 1 day. Keywords : Biosensor; glucose oxidase ; acetic cellulose; Ferrocene: Ampherometric.

Design of Multi Syringe Pump for Flow System Analysis Tri Mulyono; Asnawati Asnawati; Umarul Faruq
Jurnal ILMU DASAR Vol 14 No 1 (2013)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The aims of this work were to research: design of the multi syringe pumps, volume consistency of ISAB and the correlation of the PWM to the flow rate of carrier. Pump speed was set by PWM. Controlling the pump speed and time were performed with a computer using Labview software. It was found that based on the time variation of time then the volume of ISAB has a consistency of the injected volume with Kv 0.25% to 2.53% and the rate of carrier based on multi syringe velocity have a good correlation with the regression value of 0.998 and the value of Kv 0.27% to 1.2%. Keywords : Multi syringe pump, MSFIA methods, PWM

Measurement System of Sugar Content in Liquid Media using Computerized Photodiode Sensor Misto Misto; Tri Mulyono; Alex Alex
Jurnal ILMU DASAR Vol 17 No 1 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

It has been made an electronic system for measurement of sugar cane in solution media. This system uses a pin photodiode as a sensor, laser source, optical fiber, an operational amplifier (Op-Amp), analog to digital converter (ADC) of the Arduino, and computers. The main operation of the measurement system is done by the sensor and controlled by computer. The the photodiode sensor sends a signal to a signal processing unit (op-amp) and converted to a digital signal by the ADC. The digital signal is then forwarded for processing and display (computer). We Concluded that the system working well because of the sugar content information can be simultaneously displayed on the monitor .Keywords: sugar content, pin photodiode, computer

Simultaneous Analysis of Ammonium and Nitrate Ions Levels with Potentiometric Multi-commutation Flow System Method Hikmah, Fajrin Nurul; Mulyono, Tri; Zulfikar, Zulfikar
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.17767

This study aims to develop a multi-commutation flow system method for simultaneous determination of ammonium ion and nitrate ion using two detectors, namely ammonium ion selective electrode and nitrate ion selective electrode. The multi-commutation flow system method uses two three way selenoide valves to adjust the sample flow and ISA solution. The selenoid valve alternately flows the sample and ISA solution to the ion selective electrode. Flow control by three way selenoid valves is controlled by LabView which is programmed in the computer. The computer is connected with Arduino and a relay that functions as an on-off switch on the three way valve selenoid. This method is then applied to measure the levels of ammonium ions and nitrate ions in well water samples. The performance of the multi-commutation flow system determined includes linearity, limit detection, sensitivity, repeatability, and recovery test. Ammonium analysis results show good performance with several criteria. Ammonium linearity value is 0,9991, ammonium detection limit value is 2,23 × 10-5 M, sensitivity of ion selective electrode ammonium is 45,39 mV per decade, the repeability value is less than 2% and the recovery percentage of ammonium is 115%. While the results of the nitrate analysis showed a linearity value of 0,9937, a nitrate detection limit value of 1,31 × 10-5 M, sensitivity of the ion selective electrode nitrate of -110,58 mV per decade, a repeatability value of less than 2% and a recovery percentage of 87% nitrate. Keywords: Flow Analysis, multi-commutation, ammonium, nitrat, simultaneous.

Synthesis and Characterization Thin Film TiO2 as Degrading Procion Red MX-8B Textile Dye Almu’minin, Achmad Sholikhudin; Haryati, Tanti; Mulyono, Tri
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

TiO2 photocatalyst is one of type semiconductor that is often used in textile dyes photodegradationmethod which characteristics are influenced by the size of crytal. Synthesis of TiO2 photocatalystscan be done by several methods, one using the sol-gel method. By treating variations in thecomposition of the reactans and treatment of synthesis in sol-gel method, the size of the TiO2crystals can be controlled to produced the desired characteristics. This study has been made ofTiO2 photocatalysts in the form of thin-layer films using sol-gel method with annealing process ata temperature of 550oC. This study examines the effect of the concentration of precursor TTIP andhydrolysis ratio of the crystal structure, crystallinity, the band gap energy, and photocatalystactivity to degrade procion red mx-8b dye compound. The result obtained is known that the crystalsynthesized has structure of TiO2 anatase. Value crystal size, crystallinity, the band gap energy,and percent degradation has a value that depends on the composition of TTIP concentration andhydrolysis ratio. Although the results showed morphology of TiO2 particle indivcate that large sizeand crystallinity value is still low, but that is interesting each of the measurement results mutuallysupport each other.Keywords: photocatalyst, TiO2, Sol-gel, TTIP concentration, hydrolysis ratio

Determination of Sucrose Content in Sugarcane Liquids Through Angular Dispersion Angle Measurement Misto, M.; Mulyono, Tri; Cahyono, Bowo Eko
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

In the sugar industry, it is important to measure the sucrose content of sugar cane so that an electronic system is needed for measurement. The system was employed an array photodiode as a sensor, red and green laser, operational amplifiers (opamp), an analog to digital converter from Arduino, and a computer. The main operation of the measurement system was conducted by the sensor and controller system in the computer. The controller was programmed with Basic program, a program that suitable for the device. The signal from array photodiode sensor is send to signal processing unit (opamp) and converted to digital signal by ADC. Then the digital code is countered by controller and displayed by monitor computer. Keywords: sugar content, array photodiode, Arduino.

The Application of Cows Rumen for Electricity Generation Through The Implementation of A Ceramic-Based Microbial Fuel Cell System Mulyono, Tri; Hutamia, Diah Meirendi; Rofi’i, Imam; Misto, M.; Nugroho, Agung Tjahjo; Hariadi, Yuda Cahyoargo
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.44448

The growth in population is not adequately matched by the corresponding increase in energy demand. The imperative for prioritizing the exploration of alternative energy sources that possess attributes of safety, affordability, and ample access to raw materials cannot be overstated. An energy source with significant potential is a microbial fuel cell (MFC)-based energy source. This study aims to investigate the utilization of cow rumen as a substrate and source of nutrition in the bioenergy system of microbial fuel cells (MFCs). The present study aims to investigate the impact of substrate concentration and bacterial incubation duration derived from bovine rumen bacteria on the attainment of optimal power density. The research employed a Dual Chamber Microbial Fuel Cell (MFC) device using a Proton Exchange Membrane (PEM) constructed from ceramic materials. Daily observations were conducted over a period of 30 days. The performance of MFC was assessed utilizing the polarization technique. The findings indicated that altering the proportion of bovine rumen bacterial substrates and the duration of bacterial incubation had an impact on the power density seen in the Microbial Fuel Cell (MFC) system. The optimal conditions were attained when the substrate concentration reached 3640 ppm and after 7 days, resulting in a maximum power density of 864 mW/m2.

Design and Construction of Electrical Energy Source Panel Based on Thermoelectric Generators on Mild Steel Galvalume Maulana, Bima Wahyu; Misto, M.; Arkundato, Artoto; Mulyono, Tri
Jurnal ILMU DASAR Vol 24 No 2 (2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v24i2.26255

A thermoelectric generator (TEG) is a device that converts heat energy into electrical energy. The working principle of this device is based on Seebeck's law, namely this device will produce electrical energy if the cold side and hot side of this device have a temperature difference value of . This device can be used for generator panels whose heat source comes from the sun. The cold side of the TEG is conditioned by utilizing water fluid which is passed over the heatsink. The temperature difference between the hot and cold sides of the TEG generates an electric voltage through the Seebeck effect. The parameters observed in the research on electricity generation using this TEG are voltage, current, electric power, and the temperature difference between the hot and cold sides. The resulting parameter values are as follows; average voltage (0.5495 volts), average electric current strength of 0.04 A, average electric power (0.022 watts). mean temperature difference (16.006 oC). The largest average Seebeck coefficient is 0.0413 V/oC.

Simultaneous Determination of Magnesium (Mg2+) and Ammonium (NH4+) by Flow Injection Analysis Kholifa, Mulik; Mulyono, Tri; Muflihah, Yeni Maulidah
Jurnal ILMU DASAR Vol 19 No 1 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

An automatic method for the simultaneous determination of magnesium and ammoniun by flow injection analysis is described. This analysis used two detectors, potentiometry and spectrophotometry, for the determination of magnesium and ammonium simultaneously. Potentiometric detectors are used to detect ammonium ions, whereas spectrophotometer detectors are used to detect the presence of magnesium ions. The performance of the FIA system includes linear range linearity, limit of detection, sensitivity, reproducibility and recovery test. Spectrophotometry FIA showed good performance with several criteria of linearity with regression value of 0.9918, the detection limit of 0.06 ppm, a sensitivity of 0.0115, repeatability of less than 2% and the percent recovery of 91,6%. While potentiometric FIA showed th performance with several criteria of linearity with regression value of 0.9896, the detection limit of 0.17 ppm, a sensitivity of 40.747 mV per decade of concentration, repeatability of less than 2% and the percent recovery of 89,7%. Keywords: Flow Injection Analysis, spectrophotometry, potensiometry, simultaneous

Co-Authors Adhi Purnomo Agung Tjahjo Nugroho Agus Nuryatin Ahmad Turidi Ahmad, Mutiara Garnet Alex Taufiqurrohman Zain Alfaris, Lukman Almu’minin, Achmad Sholikhudin Anggarsika, Prabingesti Anisah Ardian Syah Putra Artoto Arkundato Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati, A. Asriyani, Wahyu Aulia, Afsun Azisah, Nur Azizah, Lutfiana Badrut Tamam Ibnu Ali Bambang Piluharto Basukiyatno, Basukiyatno Beni Habibi Burhan, Asmat Busroni, Busroni Bustami Bustami Cahyono, Bowo Eko Chairul Paotonan D. Iwan Setiawan Dewi, Febby Cynthia Dul Hapid, Saca Dwi Indarti Dwi Novitasari Dzulhaq, Muhammad Iqbal Edy Supriyanto Edy Wibowo Fajrin Nurul Hikmah Gembong Kesuma B Halimatussakdiah Halimatussakdiah Hutamia, Diah Meirendi Ika Oktavianawati Imron Rosyadi Inayah, Dwi Nita Laeli Intan Puspa Wangi, Intan Puspa Islamintari, Wulan Kholidin Kholidin, Kholidin Kholifa, Mulik Kristi, Maganda Ananda Kusworo Adi Leli Triana Maimunah Noer Aini Maufur Maufur Maulana, Bima Wahyu Misto Misto Misto Misto Misto, M. Moh. Hasan Mulatsih, Tri Mursyidah Dwi Hartati, Mursyidah Dwi Musalamah, Sittati Mutiara Garnet R.A Mutmainnah Mutmainnah Nabilah, Veni Zakiatun Neran - Novita Andarini NUR FITRIYAH Nurjanah, Lusi Ike Nursichati, Nursichati Nurul Hanifah Purwanto, Burhan Eko Purwanto, Burhan Eko Purwanto Purwo susongko Puspa Wangi, Intan Rahmat Gernowo Ramadhany, Feryna Resthiana, Niken Rizqon Rizqon Rofi’i, Imam Rofi’udin, Rofi’udin Rohmawati, Manis Rokhmawati, Ilma Eka Nur Ropiyah, Ropiyah Rustono - Rustono, Mr S Siswanto Sartikasari, Mindarti Setiawan, Mohamad Bayu Siswanto Siswanto SISWOYO Sri Mulyati Sudarko Suminto A. Sayuti Suriswo Sutisna Sutisna Sutji Muljani Syamsul Anwar, Syamsul Tanti Haryati Triningsih Triningsih Umairoh, Umi Umarul Faruq Vivian Karim Ladesi Wafi, Moh. Abduh Wawan Badrianto Wawan Badrianto, Wawan winoto hadi Wiwin Setiani Wuryanti Handayani Yeni Maulidah Muflihah Yeni Maulidah Muflihah Yuda Cahyoargo Hariadi Zulfikar Zulfikar Zulfikar

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