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.
关键词
响应面法/电感耦合等离子体质谱法/微波消解/硒
Key words
response surface methodology/inductively coupled plasma mass spectrometry/microwave digestion/selenium
维普
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