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All Journal Indonesian Journal of Laboratory Desentralisasi: Jurnal Hukum, Kebijakan Publik, Dan Pemerintahan
I Wayan Suarta
Alumni Ilmu dan Teknologi Pangan,FTP Unud
Agriculture, Biological Sciences & Forestry Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences

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Validasi Metode Uji Kalium pada Analisis Tanah Menggunakan Atomic Absorption Spectrophotometer (AAS) AA-7000 Shimadzu Tangketasik, Agustina; Yoga, Bagus Widnyana; Suarta, I Wayan; Nyoman Supadma, A. A.
Indonesian Journal of Laboratory Vol 7, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijl.v7i2.77786

Abstract

Abstrak. Metode analisis kalium pada sampel tanah mengacu pada SNI 2803:2012 yang dimodifikasi. Modifikasi metode uji memerlukan validasi. Validasi bertujuan untuk mengevaluasi keberkelanjutan metode yang diterapkan pada analisis kalium. Parameter validasi metode meliputi pembuatan kurva standar logam, penentuan kurva regresi linier, akurasi, presisi, nilai LOD dan LOQ, persen recovery dan ketidakpastian pengukuran. Perlakuan diulang 3 kali untuk kurva standar dan penentaun sampel serta spike dilakukan secara duplo. Hasil penelitian menunjukkan bahwa pada konsentrasi 0-8 ppm standar Kalium solution 1000 ppm (Merck), memiliki nilai koefisien linieritas 0,999. Nilai presisi persen RPD (2,0952%) ), nilai LOD dan LOQ berturut-turut (0,39465 dan 1,31550 ppm ), persen recovery diperoleh  (99,90%),  serta nilai ketidakpastian pipet volume dan labu takar (0,003477 dan 0,02387) serta ketidakpastian pengukuran gabungan dan yang diperluas (1,1151 dan 2,2301 ppm). Hal ini menujukkan bahwa metode uji kalium pada standar kalium  untuk mendeteksi kadar kalium pada sampel tanah sangat baik dengan nilai persentase ketidakpastian gabungan 5,32 masih di bawah 30% persyaratan ketidakpastian ideal.Abstract. The methode of kalium analysis on the agriculture land used modified SNI 2803:2012.The modification methode nececerry of validation. The validation purpose to evaluate the sustainable methode to apply in the Kalium analysis. The validation parameter consist of standard regression curve, accuracy, precision, LOD and LOQ value, recovery, and uncertainty measurement. The regression standard of curve with  triple repeatition while the sampel and spike was done by twice repeatition. The result show that on the concentration (0,2,4,6,and 8 ppm) Kalium solution 1000 ppm (Merck), has linierity coeffesient 0,999.The precision RPD value (2,0952%), LOD dan LOQ value (0,39465 dan 1,31550 ppm ) respectively, the persent of recovery  (99,90%), so the uncertainty value to volume pippette and volume flash ( 0,003477 dan 0,02387), combine the uncertainty value and the  expanded uncertainty were (1,1151 dan 2,2301 ppm). It showed that the Kalium analysis methode to determine the land agriculture sampel is very good with the percentage of uncertainty below than 30% it was 5,32 %.
Analisis Yuridis terhadap Kurangnya Kesiapan Mental pada Pasangan Pernikahan Usia Dini sebagai Faktor Penyebab Ketidakharmonisan Rumah Tangga dan Meningkatnya Perceraian Ni Wayan Juliartini; Ratna Artha Windari; Suarta, I Wayan
Desentralisasi : Jurnal Hukum, Kebijakan Publik, dan Pemerintahan Vol. 3 No. 3 (2026): Agustus: Desentralisasi : Jurnal Hukum, Kebijakan Publik, dan Pemerintahan
Publisher : Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/desentralisasi.v3i3.1973

Abstract

Early marriage remains a legal and social concern because compliance with the statutory minimum age does not necessarily indicate emotional maturity or readiness to assume marital responsibilities. This study aims to analyze the legal position of insufficient mental readiness among young married couples as a factor contributing to household disharmony and to examine its relationship with economic problems, domestic violence, and divorce. The study employs normative legal research with a descriptive-analytical approach using statutory, conceptual, and literature approaches. Legal materials consist of legislation, court data, books, journal articles, and research findings, which are analyzed qualitatively through deductive reasoning. The study finds that insufficient mental readiness is neither a requirement for the validity of marriage nor an independent legal ground for divorce. Its legal relevance arises when it is manifested in prolonged disputes, neglect of marital obligations, abandonment, or violence. Bali data indicate high numbers of marriage dispensations and divorce cases, although they do not prove a single causal relationship. Economic hardship may intensify family stress, while domestic violence remains a prohibited act with distinct legal consequences. These findings imply the need to strengthen premarital education, psychological readiness assessment, economic planning, and victim protection to prevent household breakdown among couples.
Co-Authors AGUSTINA TANGKETASIK Ni Wayan Juliartini Nyoman Supadma, A. A. Ratna Artha Windari Yoga, Bagus Widnyana