[其他] 請幫忙看一段句子 "of"

[ChesterYeah (YA01)]

擷取至一段科學文章:

其中用畫線的 of, to which 的用法及意思解釋是?

of 做開頭的時候怎麼解釋比較正確

to which 的 to 是要翻譯成"對於"嗎?

We next determined the absorption spectra (320--720 nm), at an alkaline pH,


of a 0.056 mM (0.02 g/l) solution of phenol red to which 1 mM H202
--                                              ---------

and 8.5 U/ml (50 pg/ml) HRPO were added, and of phenol red to which HRPO
                                         -------           --------

was added in the absence of H202.



在此先感謝各位大大的解釋與討論

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