PEMERIKSAAN KADAR OKSALAT DALAM DAUN SINGKONG (Manihot utilissima Pohl) DENGAN METODA SPEKTROFOTOMETRI KINETIK (Determination of Oxalate in Cassava Leaf (Manihot utilissima Pohl) by Kinetic Spetrophotometric Methode)

Syarif, Mardius and Rivai , Harrizul and Fahmi, Faizal (2014) PEMERIKSAAN KADAR OKSALAT DALAM DAUN SINGKONG (Manihot utilissima Pohl) DENGAN METODA SPEKTROFOTOMETRI KINETIK (Determination of Oxalate in Cassava Leaf (Manihot utilissima Pohl) by Kinetic Spetrophotometric Methode). Working Paper. Fakultas Farmasi. (Unpublished)

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Abstract

Determination of oxalate in cassava leaf (Manihot utilissima Pohl) by kinetic spectrophotometric method at wavelength 352 nm. This method can determine oxalate at concentration range 10 – 15 µg/ml. This method have the detection limit 4.225 µg/ml and quantitation limit 14.084 µg/ml the recovery 99.96%, standar of deviation 0.058 and coefficient of variance 0.302%. Result of oxalate determination by this method was 17.11 mg/g fresh leaves and 57.73 mg/g dry leaves. Keywords : oxalate, Manihot utilissima Pohl, kinetic spectrophotometric method

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