At the preparation period adopted a method combined evaporation to dryness by water bath and microwave ashing which mostly reduced the losing of metals.
在预处理过程中采用水浴蒸干和微波灰化相结合的方法，大大减少了金属元素的损失。
Compared with the ultrasonic extraction and water bath extraction method, the microwave-assisted extraction was time saving and more efficient.
与超声波提取法和水浴提取法相比，微波辅助提取法具有快速、高效的优势。
Compared with the ultrasonic extraction and water bath extraction method, the microwave-assisted extraction was time saving and more efficient.
与超声波提取法和水浴提取法相比，微波辅助提取法具有快速、高效的优势。
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