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Updated: Feb 17, 2026

Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA
08:12

Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA

Published on: May 16, 2016

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CO2 の Ppb レベル MIR-PAS を CO2 の同位体分析により,呼吸による H. pylori センサーをオンラインで検出する

Yubing Yang1, Xukun Yin2, Xiu Yang2

  • 1Shandong Provincial Engineering Research Center of Intelligent Sensing and Measurement and Control Technology, College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.

Photoacoustics
|February 16, 2026
PubMed
まとめ

新しい中赤外線光学スペクトロスコピーは,二酸化炭素同位体のリアルタイム検出を可能にし,ヘリコバクター・パイロリ菌の迅速な診断を可能にします. この技術は,現在の呼吸検査に有望な非侵襲的な代替手段を提供します.

キーワード:
二酸化炭素は,二酸化炭素のヘリコバクター・パイロリ菌 (Helicobacter pylori) が感染しています.同位体はイソトープである.パス・パス・パス・パス量子カスケードレーザーは,

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Carbon-13 is a naturally occurring NMR-active isotope of carbon with a low natural abundance of 1.1%. In contrast, carbon-12 is the most abundant isotope of carbon with zero nuclear spin. Therefore, it is NMR inactive. The gyromagnetic ratio of carbon-13 is smaller than that of protons. As a result, carbon-13 resonance is about 6000 times weaker than proton resonance. For a given magnetic field strength, the resonance frequency of carbon-13 is about one-fourth of the resonance frequency for...
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