珪藻土の精製に挑戦。ピラニア酸、過酸化水素水で超音波洗浄。 - 趣味の顕微鏡あそび

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Search query: 珪藻土の精製に挑戦。ピラニア酸、過酸化水素水で超音波洗浄。 - 趣味の顕微鏡あそび