Abstract :
Boesenbergia pandurata rhizome is a plant that is widely used by Indonesian
people. Other than as a seasoning bosenbergia pandurata rhizome also used as
traditional medicine considering the culture of Indonesian people in using herbal
medicine as traditional medicine. To deal with pest and plant disease problems
farmers use pesticides as a barrier to plant pest. However the use of pesticides by
farmers is often not in accordance with established regulations giving rise to
negative impacts on both humans and the environment. This study aims to test the
pesticide dimetoate residues in the organophosphate group at the boesenbergia
pandurata rhizome by Spectrophotometry UV-Vis. Qualitative analysis using the
method of adding color reagent namely nitric acid, sulfuric acid, and ammonium
molybdate. The results showed that the positive boesenbergia pandurata rhizome
contained pesticides dimetoate in the organophosphate group. The results of
quantitative using Spectrophotometry UV-Vis at 717,0 nm and operating time at 10
minutes.The results of the average levels of dimetoate pesticides obtained 0,4126
mg/kg ± 0,0014. Infidelity does not meet the requirements specified by Indonesian
National Standard in 2004 about the maximum residual limit is , 0,1 mg/kg.