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All Journal International Journal of Renewable Energy Development Jurnal AGROTEKNOLOGI Jurnal Ilmu Dasar BERKALA SAINSTEK Pelita Perkebunan Bulletin of Chemical Reaction Engineering & Catalysis Alchemy Jurnal Penelitian Kimia Jurnal Kimia Mulawarman UNEJ e-Proceeding Jurnal Kimia Riset Jurnal Pemberdayaan Masyarakat Madani (JPMM) ALCHEMY Jurnal Penelitian Kimia J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi: Media Pengabdian Kepada Masyarakat Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Indonesian Chimica Letters Warta LPM Molekul: Jurnal Ilmiah Kimia International Journal of Renewable Energy Development Engagement: Jurnal Pengabdian Kepada Masyarakat al Kimiya : Jurnal Ilmu Kimia dan Terapan
Bambang Piluharto
Jurusan Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Jember
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : UNEJ e-Proceeding

 1 
Optimisation of Extractant and Extraction Time on Portable Extractor Potentiometric Method for Determining Phosphate in Soil Anggia Rose Sukaton; Siswoyo Siswoyo; Bambang Piluharto
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Phosphorus is one of the nutrients which is needed by plants in large amounts. Fertilisation is a popular solution for supplying a sufficient amount of phosphorus in the soil. However, phosphorus can pollute water bodies and lead to eutrophication if fertilisation is carried out without considering prior information about the soil condition. Thus, analysis of phosphorus needs to be done before fertilisation. This paper is reporting a result in development an alternative strategy for analysing the phopsphorus in soil agriculture using potentiometric method. The aims of this research were to find the optimum condition of extractant and extraction time for determining phosphate, one form of phosphorus, in soil and evaluate a portable extractor potentiometric (PEP) method for determining phosphate in soil. Measurement of phosphate was undertaken by using cobalt working electrode, silver-silver chloride reference electrode and 0,025 M potassium hydrogen phtalate at pH 4 as ionic strength adjuster. Evaluation of PEP method was carried out by comparing this method with both the conventional potentiometric (CP) and the standard spectrometric (SS) methods. It was found that Kelowna was the optimum extractant for measuring phosphate potentiometrically in soil by CP method. Extraction time of 10 minutes was the optimum time for extracting phosphate in soil using Kelowna extractand solution. The result also shown that correlation between PEP and CP method was 0.883 whereas correlation between PEP and SS method was 0.924. Linear response characterisation of both PEP and CP method has obtained slope of (-28.47) and (-23.67) mV per decade respectively, in other hand the PEP and CP has resulted the detection limit 0.72 ppm and 0.83 ppm respectively. Repeatability for both PEP and CP method were less than 5%.
Co-Authors A Sjaifullah Abdulloh Abdulloh Achmad Sjaifullah Achmad Subagio Achmad Subagio Afif Difa Asy Syafiq, Muhammad Agus Triono Agus Wedi Pratama Ahmad Roziq Ahmad, Zakiyyah Ilma Anak Agung Istri Ratnadewi Ancah Caesarina Novi Marchianti Anggia Rose Sukaton Aprilia, Selvina Rizky Apriliasari, Yekti Asnawati Asnawati Asnawati Bayu Rudiyanto Busroni, Busroni Dafit Ari Prasetyo Deltaningtyas Tri Cahyaningrum Dharmawan, Aditya Dwiki Djamali, R. Abdoel Dwi Indarti Dwi Jayanti, Denik Dwi Kusuma Wahyuni Dwiyanti, Inayatus Nur Erix Nurharianto Fatwa, Muhammad Iqbal Firdaus Ubaidillah, Firdaus Firmanto, Hendy HARDIAN SUSILO ADDY Henry Adi Syahputra Sidabutar Hermanto, Toto I Rahmawati Ika Oktavianawati Imam Syafi’i Indarto Indarto Indarto Indarto Intan Rida Agustina Irsyam, Mahrus Istiqomah Rahmawati Iswahyono Iswahyono Karisma Wulan Ningtyas Khofifah, Marhamatul Lulus Kartika Ningtias Mahrus Irsyam Maryanto - Maryanto Maryanto Miftah Hijriawan Moch. Shulthoni, Moch. Mufrihah Nurhayati Muhammad Reza Naning Retnowati Nida Andriana Nur Aisyah Nurud Diniyah Purkan Purkan, Purkan Purwo Handoko, Donatus Setyawan R. Abdoel Djamali R. Indahsari Riska Rian Fauziah S. Purwo Handoko, Donatus Siswoyo Siswoyo Siti Rofiqoh, Siti Sofijan Hadi Sri Sumarsih Sudarko, S. Sulistyo, Yudi Aris Sulistyowati, Fitri Syahbanu, Intan Syahrul Khairi Tanti Haryati Tinok Dwi Ananda Totok Prasetyo Ula, Mohammad Munal Ummami, Riza Wulandari, Melysa Wuryanti Handayani Yudi Aris Sulistiyo, Yudi Aris Yulvia, Ana Zeni Ulma Zulfikar Zulfikar