 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 3 | 1/1 | 返回列表 |
| 查看: 787 | 回復(fù): 2 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
yhc0316銀蟲 (初入文壇)
|
[求助]
求翻譯，謝謝！
|
||
|
Regents and solvents All the chemicals were purchased from Aldrich Chemical Co. Other solvents and reagents were analytical grade and used as received, unless otherwise stated. Tetrahydrofuran (THF) was distilled over metallic sodium and dimethyl formamide (DMF) over calcium hydride before use. 1H and 13C NMR spectra were recorded on a Bruker-AC500 (500 MHz) spectrometer with CDCl3 as solvent and tetramethylsilane (TMS) as the internal standard. Elemental analysis was performed on a Perkin-Elmer 2400. UV-vis absorption and diffuse reflectance absorption spectra were recorded on a Hitachi U- 4100 spectrophotometer. Fluorescence measurements were carried out with a Hitachi F-4600 spectrophotometer. The peak wavelength of the lowest energy absorption band was used as the excitation wavelength for the PL measurement. The fluorescence quantum yield (F) was determined at room temperature by the dilution method using fluorescein in water (pH ¼ 11) as the reference. Powder wide-angle X-ray diffraction (PXD) experiments were performed on a powder X-ray diffractometer (INCA Energy, Oxford Instruments) operating at 3 kW. Differential scanning calorimetry (DSC) curves were determined on a Netzsch DSC 204F1 at a heating rate of 10 C min1. |
回復(fù)此樓» 猜你喜歡
求調(diào)劑材料學(xué)碩080500，總分289分
已經(jīng)有20人回復(fù)
-
070300化學(xué)求調(diào)劑
已經(jīng)有5人回復(fù)
-
085600材料與化工
已經(jīng)有10人回復(fù)
-
北科281學(xué)碩材料求調(diào)劑
已經(jīng)有7人回復(fù)
-
276求調(diào)劑。有半年電池和半年高分子實(shí)習(xí)經(jīng)歷
已經(jīng)有4人回復(fù)
-
284求調(diào)劑
已經(jīng)有6人回復(fù)
-
306求調(diào)劑
已經(jīng)有7人回復(fù)
-
291求調(diào)劑
已經(jīng)有5人回復(fù)
-
070300，一志愿北航320求調(diào)劑
已經(jīng)有5人回復(fù)
-
0703 調(diào)劑
已經(jīng)有6人回復(fù)
【答案】應(yīng)助回帖
|
（實(shí)驗(yàn)）試劑與溶劑 （reagent 是試劑，你復(fù)制錯了） （實(shí)驗(yàn)）所用樣品均來自阿拉丁試劑廠。其他試劑及溶劑均為分析純，且為新到樣品（收到即使用），其他純度的樣品除外。使用前先將金屬鈉用四氫呋喃（THF）進(jìn)行蒸餾，氫化鈣用二甲基甲酰胺(DMF)進(jìn)行蒸餾。 以CDCl3為溶劑、四甲基硅烷（TMS）為內(nèi)標(biāo)物，用Bruker-AC500 (500 MHz)測得1H 和 13C 的NMR光譜。利用 Perkin-Elmer 2400進(jìn)行基礎(chǔ)分析。用Hitachi U- 4100分光光度計(jì)記錄了紫外可見吸收光譜 和漫反射吸收光譜。以能量最低的吸收譜帶的波長的峰值作為激發(fā)波長，來進(jìn)行PL測量。熒光量子的含量在室溫下通過稀釋法進(jìn)行了測定，以熒光素水溶液作為其參照。寬角度PXD測試實(shí)驗(yàn)在XRD（INCA 能源, 牛津儀器設(shè)備生產(chǎn)）上于3KW的功率下進(jìn)行。掃描差熱（DSC）曲線由Netzsch DSC 204F1測試儀以10度每分鐘的升溫速率進(jìn)行了描繪。  |
2樓2014-10-18 21:14:28
ssssllllnnnn 
至尊木蟲 (知名作家)
Translator and Proofreader
- 翻譯EPI: 1690
- 應(yīng)助: 452 (碩士)
- 金幣: 31580.9
- 紅花: 100
- 帖子: 7681
- 在線: 19966.6小時(shí)
- 蟲號: 3328089
- 注冊: 2014-07-17
- 專業(yè): 腫瘤發(fā)生
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
yhc0316: 金幣+50, 翻譯EPI+1 2014-10-19 14:13:02
yhc0316: 金幣+50, 翻譯EPI+1 2014-10-19 14:13:02
|
試劑和溶劑 所有的化學(xué)品均購自Aldrich化學(xué)公司。除非另有說明，其它溶劑和試劑均為分析級并且原樣使用。使用前，用金屬鈉對四氫呋喃（THF）重蒸餾，用氫化鈣對二甲基甲酰胺（DMF）重蒸餾。 以CDCl3為溶劑、四甲基硅烷（TMS）為內(nèi)標(biāo)，用Bruker-AC500（500 MHz）光譜儀記錄1H和13C的NMR光譜。用Perkin-Elmer 2400進(jìn)行元素分析。用日立U-4100分光光度計(jì)記錄紫外-可見光吸收光譜和彌散反射吸收光譜。用Hitachi F-4600分光光度計(jì)進(jìn)行熒光測量。用最低能量的吸收帶的峰值波長作為激發(fā)波長測定PL。用稀釋法在室溫下測定熒光量子產(chǎn)率（F），以熒光素水溶液（pH=11）作參照。粉末廣角X射線衍射（PXD）實(shí)驗(yàn)是在粉末X射線衍射儀（INCA能源，牛津儀器）用3千瓦功率進(jìn)行。差示掃描量熱法（DSC）曲線用Netzsch DSC204F1測定，所用升溫速率為10度/分鐘。 |
3樓2014-10-19 10:31:37
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 yhc0316 的主題更新
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 284求調(diào)劑 +6 | Zhao anqi 2026-03-22 | 6/300 |
|
|---|---|---|---|---|
|
|
[考研] 070300，一志愿北航320求調(diào)劑 +3 | Jerry0216 2026-03-22 | 5/250 |
|
|
[考研] 招08考數(shù)學(xué) +4 | laoshidan 2026-03-20 | 11/550 |
|
|
|
[考研] 289材料與化工（085600）B區(qū)求調(diào)劑 +3 | 這么名字咋樣 2026-03-22 | 4/200 |
|
|
|
[考研] 08工科 320總分 求調(diào)劑 +11 | 梨花珞晚風(fēng) 2026-03-17 | 11/550 |
|
|
|
[考研] 287求調(diào)劑 +8 | 晨昏線與星海 2026-03-19 | 9/450 |
|
|
|
[考研] 298求調(diào)劑一志愿211 +3 | 上岸6666@ 2026-03-20 | 3/150 |
|
|
|
[考研] 材料學(xué)碩301分求調(diào)劑 +7 | Liyouyumairs 2026-03-21 | 7/350 |
|
|
|
[考研] 297求調(diào)劑 +3 | 喜歡還是不甘心 2026-03-20 | 3/150 |
|
|
|
[考研] 302求調(diào)劑 +12 | 呼呼呼。。。。 2026-03-17 | 12/600 |
|
|
|
[考研] 306求0703調(diào)劑一志愿華中師范 +5 | 紙魚ly 2026-03-21 | 5/250 |
|
|
|
[考研] 346求調(diào)劑[0856] +4 | WayneLim327 2026-03-16 | 7/350 |
|
|
|
[考研] 初始318分求調(diào)劑（有工作經(jīng)驗(yàn)） +3 | 1911236844 2026-03-17 | 3/150 |
|
|
|
[考研] 一志愿華南師大 070300（化學(xué)）304分求調(diào)劑 +3 | 0703武芊慧雪304 2026-03-18 | 3/150 |
|
|
|
[考研] A區(qū)線材料學(xué)調(diào)劑 +5 | 周周無極 2026-03-20 | 5/250 |
|
|
|
[考研] 材料學(xué)碩297已過四六級求調(diào)劑推薦 +11 | adaie 2026-03-19 | 11/550 |
|
|
|
[考研] 一志愿西南交通 專碩 材料355 本科雙非 求調(diào)劑 +5 | 西南交通專材355 2026-03-19 | 5/250 |
|
|
|
[考研] 0817 化學(xué)工程 299分求調(diào)劑 有科研經(jīng)歷 有二區(qū)文章 +22 | rare12345 2026-03-18 | 22/1100 |
|
|
|
[考研] 材料考研調(diào)劑 +3 | xwt。 2026-03-19 | 3/150 |
|
|
|
[考研] 考研求調(diào)劑 +3 | 橘頌. 2026-03-17 | 4/200 |
|