Determination of Total Arsenic Content in Fish by Microwave Digestion-Atomic Fluorescence Spectrometry
This study established a method for determining arsenic content in fish liver using microwave digestion combined with atomic fluorescence spectrophotometry.By optimizing microwave digestion conditions and atomic fluorescence parameters,efficient detection of trace arsenic in fish samples was achieved.Experimental results showed that with a fish liver sample mass of 0.25 g,the detection limit was below 0.02 μg·L-1,with recovery rates ranging from 84.2%to 116.4%,and a relative standard deviation of less than 3.15%.This method is simple,fast,and highly sensitive,making it suitable for arsenic detection in aquatic biological samples and providing an effective tool for water environment monitoring and food safety assessment.
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