24小时热门版块排行榜    

查看: 587  |  回复: 2

1570583814

新虫 (初入文坛)

[求助] 求以下蛋白质提取方法的简洁连贯版段落式英文叙述,还是英文滴具体步骤如下

初始悬赏金币 30 个
初始悬赏金币 30 个
1) The sample was grinded to power with liquid nitrogen;
2) Add 10mL cooled acetone contained 10% TCA to 1g sample power at  -20°C for 1 hour;
3) Centrifuge by 15000g for 15 min at  4°C, collect the  deposit  and  add cooled  acetone at -20°C for 1 hour;
4) Repeated the step 3;
5) Centrifuge  by  15000g  for  15  min  at  4°C,  collect  the  deposit  and  dried  by vacuum freezed dryer;
6) Suspends the deposit in cold phenol extraction buffer;
7) Add an equal volume of  phenol saturated with Tris-HCl  (pH  7.5) and shake  the mixture for 30 min at 4 ℃;
8) Centrifuge at 5000g for 30 min at 4 ℃ and collect the upper phenolic phase;
9) Add  equal  phenol  extraction  buffer  to  the  collected  phenolic  phase,  repeat steps 2-3 and collect the upper phenolic phase again;
10) Add 5 volumes of cold 0.1 M ammonium acetate in methanol to the collected phenol phase, store at –20 ℃ for 1 hour;
11) Centrifuge the sample for 30 min at 5000g at 4 ℃;
12) Add 2 volumes (based on the volume of the last collected phenolic phase) ice-cold methanol to wash the pellet, mix gently;
13) Centrifuge the sample for 30 min at 5000g at 4 ℃;
14) Repeat Steps 12and 13 two more times;
15) Repeat Steps 12 and 13 two more times using acetone instead of methanol;
16) Centrifuge the sample for 30 min at 5000g at 4 ℃, dry the deposit;
17) The deposit was dissolved in lysis solution at 30°C for 1 hour;
18) Centrifuge the solution by 15000g for 15 min at room temperature, collect the supernatant and centrifuge again;
19) The supernatant was the extracted protein solution.

发自小木虫IOS客户端

» 猜你喜欢

已阅   关注TA 给TA发消息 送TA红花 TA的回帖

wendytxy

至尊木虫 (职业作家)

rosemary

【答案】应助回帖

我认为第一句里的“power”错了,结合上下文应该是“powder”粉末。
1.以液氮研磨法将样品研为粉末。
2.在-20℃下缓慢滴加10mL冷冻的氯仿的丙酮溶液(v/v, 10%)至粉末中,费时1h(意思是这10mL溶剂从开始滴至滴完费时1h)。
3.4℃下离心(1,5000g, 15 min),沉淀在-20℃下加入冷冻的丙酮,费时1小时。
4.重复第三步。
5.4℃下离心(1,5000g, 15 min),将沉淀冷冻干燥。
6.沉淀置冷冻的苯酚提取缓冲液中,静置。
7.加入等体积的Tris-饱和酚溶液(pH 7.5), 4℃下振荡30min。
8.4℃下离心(5000g, 30 min),收集上层有机相。
夜深了,我就翻译到这吧。
床前明月光,猫猫爱喝汤。举头望主人,低头思猫粮。
2楼2016-03-10 00:03:45
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

1570583814

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by wendytxy at 2016-03-10 00:03:45
我认为第一句里的“power”错了,结合上下文应该是“powder”粉末。
1.以液氮研磨法将样品研为粉末。
2.在-20℃下缓慢滴加10mL冷冻的氯仿的丙酮溶液(v/v, 10%)至粉末中,费时1h(意思是这10mL溶剂从开始滴至滴 ...

谢谢啊,我不想要翻译啊,我的意思是想把这些步骤连贯成一段英文,用在文章中,现在太散太复杂了

发自小木虫IOS客户端
3楼2016-03-10 08:09:22
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 1570583814 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 276求调剂 +3 路lyh123 2026-02-28 4/200 2026-02-28 19:45 by 路lyh123
[考研] 085600材料工程一志愿中科大总分312求调剂 +7 吃宵夜1 2026-02-28 9/450 2026-02-28 19:15 by 公瑾逍遥
[考研] 298求调剂 +6 人间唯你是清欢 2026-02-28 8/400 2026-02-28 18:52 by 人间唯你是清欢
[考研] 0856材料求调剂 +10 hyf hyf hyf 2026-02-28 11/550 2026-02-28 18:50 by 无际的草原
[考研] 材料学调剂 +4 提神豆沙包 2026-02-28 4/200 2026-02-28 18:26 by houyaoxu
[基金申请] 面上模板改不了页边距吧? +3 ieewxg 2026-02-25 3/150 2026-02-28 18:25 by addressing
[教师之家] 版面费该交吗 +15 苹果在哪里 2026-02-22 18/900 2026-02-28 18:20 by mibaomingg
[考研] 285求调剂 +5 满头大汗的学生 2026-02-28 5/250 2026-02-28 18:10 by 材料专硕调剂;
[考研] 材料调剂 +3 爱擦汗的可乐冰 2026-02-28 3/150 2026-02-28 18:06 by houyaoxu
[考研] 求调剂 +3 repeatt?t 2026-02-28 3/150 2026-02-28 18:00 by houyaoxu
[考研] 化工专硕348,一志愿985求调剂 +3 弗格个 2026-02-28 5/250 2026-02-28 17:04 by sandychj
[考博] 博士自荐 +3 kkluvs 2026-02-28 3/150 2026-02-28 16:59 by StarAura
[高分子] 求环氧树脂研发1名 +3 孙xc 2026-02-25 11/550 2026-02-28 16:57 by ichall
[考博] 26申博 +3 想申博! 2026-02-26 3/150 2026-02-28 16:07 by nxgogo
[考研] 295求调剂 +4 19171856320 2026-02-28 4/200 2026-02-28 13:39 by ms629
[考研] 290求调剂 +4 材料专硕调剂; 2026-02-28 5/250 2026-02-28 13:32 by houyaoxu
[考研] 寻找调剂 +3 LYidhsjabdj 2026-02-28 3/150 2026-02-28 12:59 by miniwendy
[考研] 272求调剂 +3 田智友 2026-02-28 3/150 2026-02-28 12:31 by 王加浩to
[考研] 298求调剂 +4 axyz3 2026-02-28 4/200 2026-02-28 11:21 by wang_dand
[基金申请] 面上可以超过30页吧? +12 阿拉贡aragon 2026-02-22 13/650 2026-02-26 22:09 by Hahaxia
信息提示
请填处理意见