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Citation: FENG Guo-Dong, SONG Zhi-Guang, Guo Yu-Peng. Determination of Trace Elements in Rice Flour Using Microwave Plasma Torch-Atomic Emission Spectrometry:Design and Practice of a College Chemistry Experiment of Instrumental Analysis[J]. University Chemistry, ;2017, 32(9): 41-45. doi: 10.3866/PKU.DXHX201704019 shu

Determination of Trace Elements in Rice Flour Using Microwave Plasma Torch-Atomic Emission Spectrometry:Design and Practice of a College Chemistry Experiment of Instrumental Analysis

College of Chemistry, Jilin University, Changchun 130012, P. R. China

A research type experiment of instrumental analysis was designed for undergraduates. In this experiment, microwave plasma torch-atomic emission spectrometer (MPT-AES) was used to detect trace metal elements (Ca, Cu, Fe and Mn) in flour samples. The experimental conditions, such as microwave power and supporting gas flow rate were optimized. Finally, the standard rice flour sample was detected under the optimum experimental conditions with a satisfying result. During this experiment students can learn and master the sample pretreatment method, the mechanism of atomic emission spectrum and optimization of the equipment testing.
- Microwave plasma torch,
- Atomic emission spectrometry,
- Rice flour,
- Trace elements
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