However, the cost of H2O2 is very high.
但是原料双氧水的价格很高。
If nothing else, H2O2 does effectively break up ear wax.
就算没什么别的效果，双氧水在分解耳垢方面也很有效。
I can treat it by bleaching it with superoxol (30%h2o2).
我可以用30%的过氧化氢液来漂白牙齿。
Methods: To prepare food sample in HNO3-H2O2 solutions and determine the sample.
方法：将食品样品以HNO3 - H2O2进行前处理，样液用铝的试剂盒法进行测定。
Methods: To prepare food sample in HNO3-H2O2 solutions and determine the sample.
方法：将食品样品以HNO3 - H2O2进行前处理，样液用铝的试剂盒法进行测定。
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