Analisis Kadar Ca dan Mg pada Pupuk Dolomit dengan Menggunakan Metode Spektrofotometri Serapan Atom

Abstract

An analysis of calcium and magnesium levels in dolomite fertilizer using HCL hydrolysis has been carried out. The aim of this research was to determine the good quality of dolomite fertilizer by knowing its calcium and magnesium levels. The method used is atomic absorption spectrophotometry (SSA) using in SNI 02-2804-2005 reference with a minimum calcium content of 30% and a minimum of 18% magnesium. Meanwhile, sample No. 55 contains 32.35% calcium and 15.39% magnesium. Therefore, it can be said that the dolomite fertilizer in sample No. 55 was obtained in the laboratory as a fertilizer that was not good according to SNI 02-2804-2005.