Penentuan Kadar Fosfor Sebagai P205 Total Pada Sampel Pupuk NPK dengan Menggunakan Metode Spektrofolometer UV-Visble

Abstract

Delerminatioll of phosphorus (P}05) levels in NPK fertilizers (MUliara, Meroke alld Tawan) has been carried 01// allile Celller for Plant Seeds alld Pla1ll Protection (BBPPTP) Medan. Determinatioll of phosphorus levels as P205 ill samples of NPK fertilizers. namely Muriara, Taurm alld Meroke jerlilizers using the UV-Visible spectrophotometric method. The analysis was carried alii at a wavelength of 466 11111 alld calculated as the total P205 cOllfelll. The results oflhe total P205 levels illlhe NPK fertilizer samples were Muliara 16.65%, Meroke 17.01% and rawan J6.11 %. The results of lhis analysis indicate thaI the level of phosphorus in NPK fertilizer is in accordance with the quality standard of SNI 2803:2010 where the minimum standard is 8%.