Publication: Optimization of digestion method for determination of copper in shrimp paste sample using flame atomic absorption spectrometry
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Date
2016
Authors
Yahya M.A.
Amin K.K.M.
Al-Qodah Z.
Ngah C.W.Z.C.W.
Journal Title
Journal ISSN
Volume Title
Publisher
Chemical Publishing Co.
Abstract
Sample preparation using microwave assisted digestion has been a well-known procedure worldwide. Nowadays, experimental designs have been used to facilitate this process. This study uses factorial design approach to study the concentration of copper in shrimp paste sample. The aim of the study was to optimize the digestion procedures for digesting the shrimp paste samples. Flame atomic absorption spectrometry was used to study the copper concentration. DOE software-Design Expert�7.0 was used to interpret all the data obtained. The combination of 4 mL HNO3, 2 mL of H2O2, 0.1 g of sample weight, 1400 W of power and duration of 5 min were found to be optimum in digesting shrimp paste sample for copper analysis.
Description
Keywords
Atomic absorption spectrometry, Copper, Factorial design, Microwave assisted digestion, Optimization, Shrimp paste