English
全部
搜索
图片
视频
地图
资讯
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
生物通
6 个月
二维核磁共振技术在街头毒品样本中海洛因的检测与定量分析
为解决新型合成阿片类药物检测难题,研究人员采用2D NMR技术(COSY/HSQC)对街头毒品样本进行多组分分析,成功定量海洛因(0 ...
生物通
7 个月
基于核磁共振(NMR)的ESIPT活性2-(2'-羟基-3'-甲基苯基)苯并唑类及其甲酰 ...
本研究针对ESIPT(激发态分子内质子转移)荧光团结构表征不完善的难题,通过多维NMR技术(1H/13C、COSY/HSQC/HMBC)首次完成6种苯并唑 ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
Allows CA to use new map
Sentenced to life in prison
Suspect charged w/ terrorism
Postpones Las Vegas shows
Hayes suspended 1 game
Alex Saab arrested
Relations w/ US 'rock solid'
Bans e-waste imports
PR voting machines probed?
Plead for mom's safe return
Apologizes to Epstein victims
NCAA denies appeal
Paul Weiss chairman resigns
Carillo to replace Guthrie
DOJ removes ICE lawyer
Peace talks continue
Charged with felony assault
Montana's Hauck retires
US-RU nuclear pact expires
To close 250 locations
Pennsylvania hospital fire
Nike facing US probe
US proposes trade bloc
Weekly jobless claims rise
Beats earning expectations
5th Dimension co-founder dies
US-Iran talks set for Friday?
Lee Hamilton dies at 94
Won’t seek reelection
Kings acquire Artemi Panarin
Professor files lawsuit
Rapper Lil Jon's son missing
反馈