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 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Body of last hostage found
Missing teacher found dead
Launches MI governor bid
Hospitalized after collapse
Apologizes for antisemitism
Pleads not guilty
To present at 2026 Grammys
Gold tops $5,000
Reggae drummer dies
Calls for World Cup boycott
Treasury cancels contracts
US carrier enters Middle East
Greece biscuit factory fire
CVC to acquire Marathon
Oldest wooden tools recovered
Trump sends Homan to MN
Super Bowl 60 matchup set
Exits MN governor's race
Rafah crossing to reopen
Canada OKs belugas export
Duterte fit to stand trial
EU opens probe into X
Joins Lionsgate's board
Sued by former executive
To pay $68M to settle suit
Pegula dethrones Keys
To acquire The Detroit News
Out of Bills HC race
Moves into AO quarters
Hired as Chargers' OC
To leave Minneapolis?
France passes under-15s ban
反馈