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Waqar Ahmed1, Maxim Wilkinson1,2,3, Stephen J Fowler1,4

  • 1Division of Immunology, Immunity to Infection and Respiratory Medicine; School of Biological Sciences; Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.

Journal of breath research
|September 11, 2024
PubMed
概括

这项研究引入了一种创新的方法,用于创建聚合质量控制 (QC) 样本,用于挥发性有机化合物 (VOC) 分析. 这些质量控制样本有助于确保呼吸和头部空间VOC的复杂研究中的数据质量.

相关概念视频

Volatilization01:10

Volatilization

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...
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Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
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Sampling Plans01:23

Sampling Plans

Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
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