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03240331銀蟲 (小有名氣)
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[求助]
求高手幫我翻譯這句話一下
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Mobile phase: mix 230 volumes of methanol R and 5 volumes of glacial acetic acid R with 770 volumes of a 2.70g/l solution of sodium dihydrogen phosphate R containing 3.50g/l of sodium octanesulphonate R and previously adjusted to PH 2.5 with phosphoric acid R. 請高手幫忙翻譯下,主要是最后一句中用磷酸調劑PH到2.5 是調哪個溶液? 謝謝! |
捐助貴賓 (著名寫手)
深海凝眸

木蟲 (小有名氣)
銅蟲 (小有名氣)

金蟲 (正式寫手)
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Mobile phase: mix 230 volumes of methanol R and 5 volumes of glacial acetic acid R with 770 volumes of a 2.70g/l solution of sodium dihydrogen phosphate R containing 3.50g/l of sodium octanesulphonate R and previously adjusted to PH 2.5 with phosphoric acid R. 流動相: 混合有230體積的methanol R,5體積的glacial acetic acid R和770體積的包含有2.7g的磷酸二氫鈉、3.5g 的sodium octanesulphonate R ,以上這些物質所形成的溶液用phosphoric acid R將溶液調節(jié)為pH值到2.5。應該是磷酸去調節(jié),不過不明白你這R是WHAT意思? |

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