Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Volatilization01:10

Volatilization

5.2K
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
5.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Reply.

Gastroenterology·2026
Same author

A novel antiviral strategy targeting human metapneumovirus through pH modulation in human airway epithelial cells.

The Journal of general virology·2026
Same author

Environmental redox conditions and strain variation define phenazine-mediated antagonism in co-infecting bacteria.

PLoS biology·2026
Same author

Time spectrum repaint domain-wise diffusion model for bearing fault diagnosis under time-varying conditions in high-speed trains.

ISA transactions·2026
Same author

Understanding university teachers' continuance of an AI teaching assistant: an integrated TTF-TAM-ECM model in higher education.

Frontiers in psychology·2026
Same author

A novel antiviral strategy targeting human metapneumovirus through pH modulation in human airway epithelial cells.

bioRxiv : the preprint server for biology·2026

相关实验视频

Updated: Jan 17, 2026

Breath Collection from Children for Disease Biomarker Discovery
06:09

Breath Collection from Children for Disease Biomarker Discovery

Published on: February 14, 2019

7.3K

平行离线呼吸采样用于对挥发性有机化合物代谢物进行交叉验证分析.

Eray Schulz1,2, Mariana Maciel2, Zhige Wang3

  • 1Chemistry & Chemical Biology, Indiana University Indianapolis, Indianapolis, IN, USA.

Metabolomics : Official journal of the Metabolomic Society
|September 17, 2025
PubMed
概括

呼吸中的挥发性有机化合物 (VOC) 可以表明健康状况. 这项研究验证了两种采样方法,发现一致的结果提高了VOC生物标志物的可靠性,用于非侵入性健康监测.

关键词:
化学测量分析的化学分析.呼出的气息是可以呼吸的.气体染色学 质谱学 (GC-MS) 气体染色学固体相微提取 (SPME) 是一种微提取技术.挥发性有机化合物 (VOC) 是一种挥发性有机化合物.

更多相关视频

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

9.3K
Capturing Actively Produced Microbial Volatile Organic Compounds from Human-Associated Samples with Vacuum-Assisted Sorbent Extraction
09:19

Capturing Actively Produced Microbial Volatile Organic Compounds from Human-Associated Samples with Vacuum-Assisted Sorbent Extraction

Published on: June 1, 2022

4.5K

相关实验视频

Last Updated: Jan 17, 2026

Breath Collection from Children for Disease Biomarker Discovery
06:09

Breath Collection from Children for Disease Biomarker Discovery

Published on: February 14, 2019

7.3K
Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

9.3K
Capturing Actively Produced Microbial Volatile Organic Compounds from Human-Associated Samples with Vacuum-Assisted Sorbent Extraction
09:19

Capturing Actively Produced Microbial Volatile Organic Compounds from Human-Associated Samples with Vacuum-Assisted Sorbent Extraction

Published on: June 1, 2022

4.5K

科学领域:

  • 生物标志物发现发现
  • 分析化学 分析化学
  • 呼吸系统医学 呼吸系统医学

背景情况:

  • 呼吸中的挥发性有机化合物 (VOC) 为非侵入性健康监测提供了潜力.
  • 由于非标准化采样方法,存在VOC生物标志物忠实性的挑战,可能导致错误发现.

研究的目的:

  • 使用两个离线收集/分析方法来分析呼吸中的VOC:直接固相微提取 (SPME) 和Tedlar袋收集.
  • 评估已识别的VOC生物标志物的可靠性和可重复性.

主要方法:

  • 158名参与者使用SPME和Tedlar袋提供了横截面呼吸样本.
  • 10名参与者提供了纵向样本用于可重复性评估.
  • 气色谱-质谱学 (GC-MS) 与SPME结合使用,并进行了强大的数据处理.

主要成果:

  • 通过这两种方法确定了超过30种独特的VOC.
  • 体在两个数据集中都显示出一致的趋势.
  • 在12种常见的VOC中,11种在健康个体中显示出显著的相关性 (p < 0.05).
  • 纵向样本显示了比横截面样本更高的VOC可复制性.

结论:

  • 来自SPME和Tedlar袋方法的量化VOC档案是一致的.
  • 该研究提高了报告的呼吸VOC生物标志物的可靠性和真实性.
  • 生物统计分析支持可复制的VOC的强有力的发现.