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Analisis Residu Pestisida Organoklorin Pada Rimpang Kunyit (Curcuma Domestica) Secara M Spektrofotometri Ultraviolet Visibel

Abstract

Ultraviolet-visible spectrophotometry can be used for determination of organochlorin in turmeric rhizome. This method is based on its complex formation between iron (III) dan thiocyanate ions and the absorption was monitored at 455.5 nm. The aim of this research is to know the validity of UV-Vis spectyrophotometry methods to determinate in turmeric rhizome. The result of analysis was mean organochlorin content in turmeric rhizome is 461.3 ppm. Result of validation analysis standard deviation (SD), coefficient variation (CV) and correctness of appliance at precesion test appliance are 2.4835.10-3, 0.778% and 99.9922% respectively. Method accuration test are recovery and systematically error are 108.984% and 8.984% respectively. For linearity test the equation of standard curve linear regression y=0.00345x + 0.127. Limit detection and limit quantitation are 21.565 ppm and 71.884 ppm respectively. Keywords: organochlorin, turmeric rhizome, spektrophotometry UV-Vis

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