Response Surface Methodology Optimization for Inductively Coupled Plasma Mass Spectrometry Determination of Total Selenium in Rice
The selenium extraction conditions were optimized through single factor and response surface experiments,and a method for the determination of total selenium in rice by inductively coupled plasma mass spectrometry was established.The results showed that under the conditions of extracting 5 mL nitric acid volume,microwave digestion at a maximum temperature of 160℃,microwave digestion power of 1 000 W,and acid driving temperature of 135℃,the extraction efficiency of selenium was the highest.After verification of accuracy and precision,the measurement results of this method are reliable.
response surface methodologyinductively coupled plasma mass spectrometrymicrowave digestionselenium
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