Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/94459
Title: Orthogonal array design for the optimization of closed-vessel microwave digestion parameters for the determination of trace metals in sediments
Authors: Zhou, C.Y.
Wong, M.K. 
Koh, L.L. 
Wee, Y.C. 
Keywords: Atomic absorption spectrometry
Closed vessel
Microwave digestion
Optimization
Orthogonal array design
Soil
Issue Date: 10-Oct-1995
Citation: Zhou, C.Y.,Wong, M.K.,Koh, L.L.,Wee, Y.C. (1995-10-10). Orthogonal array design for the optimization of closed-vessel microwave digestion parameters for the determination of trace metals in sediments. Analytica Chimica Acta 314 (1-2) : 121-130. ScholarBank@NUS Repository.
Abstract: Orthogonal array design was applied to the optimization of the closed-vessel microwave digestion of sediment samples. Five variables related to the digestion efficiency were studied: the addition of HF in digestion acid, the ratio between HCl and HNO3, the maximum pressure setting, the output power and the digestion time. In the experimental assignment, the digestion time at two levels and other variables at four levels were tested using an OA16(44 × 23) matrix. The interactions between the parameters were neglected. From the results, the optimum conditions for the closed vessel microwave digestion for sediment samples were established. © 1995.
Source Title: Analytica Chimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/94459
ISSN: 00032670
Appears in Collections:Staff Publications

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