通过UV和FTIR光谱分析，超声波浸提没有使地榆根中有效成分的结构发生改变。
The structures of efficacious components of S. officinalis root by ultrasonic extraction do not change judging from the analysis by UV and FTIR.
黑麦幼苗试验进一步证明KH_2PO_4浸提有效态硒可以作为酸性土壤有效硒的指标。
The rye seeding test further has shown that the KH2PO4extractcd available Se for plant.
采用硫化铵溶液为浸提剂能有效地提取矿渣中的硫磺。
It was found that ammonium sulfite can be used as a digesting agent which can extract sulfur efficiently from the leach residue.
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