PENETAPAN KADAR KALIUM (K) PADA AIR KELAPA HIJAU (Cocos Viridis ) DI DAERAH DOLO DAN LABUAN MENGGUNAKAN SPEKTROFOTOMETRI

ABSTRACT

Hikmawandari A Djula, 2017. Determination of Potassium (K) in Green Coconut (Cocos viridis) from Dolo and Labuan Areas Using Spectrophotometry. Thesis, Chemistry Education Study Program, Mathematics and Natural Sciences Education Department, Teacher Training and Education Faculty, Universitas Tadulako, Palu. Supervisors: (I) Purnama Ningsih, and (II) Ratman.
One of the potential plantations in Dolo and Labuan area is coconut plant. Coconut water as one of the coconut product has not been widely used, even it contains many minerals. Potassium in coconut water can be utilized as additional mineral intake for human. This study aimed to determine potassium (K) levels in green coconut (coconut viridis) water from Dolo and Labuan areas using spectrophotometric. The results showed that the average concentration of K in green coconut water samples from Dolo area was 162 ppm, while from Labuan area was 154 ppm. This study concluded that the higher level of potassium is in green coconut water samples from Dolo area.
Keywords: Potassium level, coconut water, green coconut, spectrophotometry