Microwave-assisted extraction - inductively coupled plasma mass spectrometry in food borax
in food. To 0.1moL • L-1 ammonia to eliminate the memory effect of boron. The law and GB/T21918-2008 compared in the three detection methods: a simple、 rapid、 reagent less pollution、 reduce sample background interference characteristics of boron; the method of boron in the 0 ~ 2.0μg • mL-1 range linear within the working standard curve is Y = 0.2000 × X-2.5930E-004, a good linear relationship, R = 0.9990. Borax detection limit of 0.02μg • mL-1 (σ = 3), RSD less than 5%, recovery is (95.2 - 103.4)%. Keywords: microwave-assisted extraction; inductively coupled plasma mass spectrometry; borax; food;
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