| 5 | 1/1 | 返回列表 |
| 查看: 1350 | 回復(fù): 8 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | ||
03240331銀蟲 (小有名氣)
|
[求助]
求高手幫我翻譯這句話一下
|
|
|
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(diào)劑PH到2.5 是調(diào)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)
|
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(zhì)所形成的溶液用phosphoric acid R將溶液調(diào)節(jié)為pH值到2.5。應(yīng)該是磷酸去調(diào)節(jié),不過不明白你這R是WHAT意思? |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 306求0703調(diào)劑一志愿華中師范 +9 | 紙魚ly 2026-03-21 | 10/500 |
|
|---|---|---|---|---|
|
[考研] 341求調(diào)劑(一志愿湖南大學(xué)070300) +5 | 番茄頭--- 2026-03-22 | 6/300 |
|
|
[考研] 一志愿北京化工大學(xué) 070300 學(xué)碩 336分 求調(diào)劑 +7 | vv迷 2026-03-22 | 7/350 |
|
|
[考研] 一志愿中南大學(xué)化學(xué)學(xué)碩0703總分337求調(diào)劑 +5 | niko- 2026-03-22 | 5/250 |
|
|
[考研] 一志愿陜師大生物學(xué)071000,298分,求調(diào)劑 +3 | SYA! 2026-03-23 | 3/150 |
|
|
[論文投稿] 急發(fā)核心期刊論文 +3 | 賢達(dá)問津 2026-03-23 | 5/250 |
|
|
[考研] 298求調(diào)劑 +8 | 上岸6666@ 2026-03-20 | 8/400 |
|
|
[考研] 293求調(diào)劑 +3 | 濤濤Wjt 2026-03-22 | 5/250 |
|
|
[考研] 280分求調(diào)劑 一志愿085802 +4 | PUMPT 2026-03-22 | 7/350 |
|
|
[考研] 307求調(diào)劑 +11 | 冷笙123 2026-03-17 | 11/550 |
|
|
[考博] 招收博士1-2人 +3 | QGZDSYS 2026-03-18 | 4/200 |
|
|
[考研] 280求調(diào)劑 +11 | 咕嚕曉曉 2026-03-18 | 12/600 |
|
|
[考研] 求調(diào)劑 +3 | 13341 2026-03-20 | 3/150 |
|
|
[考研] 296求調(diào)劑 +4 | www_q 2026-03-20 | 4/200 |
|
|
[基金申請]
學(xué)校已經(jīng)提交到NSFC,還能修改嗎?
40+4
|
babangida 2026-03-19 | 9/450 |
|
|
[考研] 332求調(diào)劑 +3 | 鳳凰院丁真 2026-03-20 | 3/150 |
|
|
[考研] 化學(xué)求調(diào)劑 +4 | 臨澤境llllll 2026-03-17 | 5/250 |
|
|
[考研] 一志愿武理材料305分求調(diào)劑 +6 | 想上岸的鯉魚 2026-03-18 | 7/350 |
|
|
[考研] 304求調(diào)劑 +7 | 司空. 2026-03-18 | 7/350 |
|
|
[考研]
|
然11 2026-03-19 | 4/200 |
|