Diagnosis of gastric endoscopic biopsies using attenuated total reflectance (ATR) Fourier transform infrared (FT-IR) spectroscopy with entropy weight local-hyperplane <i>k</i>-nearest neighbor based on frequency domain information (EWHFI)

Li, Qingbo; Zhao, Ruiguang; Shi, Shaolin; Li, Wenjie

doi:10.1080/00032719.2019.1577890

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2020

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“…The FT-IR spectrum of the sample was extracted and then determined by FT-IR spectrophotometer. The KBr disc used should contain 1.00% finely crushed samples [22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: The Ft-irmentioning

confidence: 99%

Natural and pyrolysis molecule of Cotoneaster zabelii Schneid

et al. 2020

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Original scientific paper https://doi.org/10.2298/TSCI190703035YCotoneaster zabelii Schneid is a unique wood biological resource in China, but its natural ingredients are not used effectively. In this paper, ethanol and phenyl alcohol were used to study the leaves and branches of Cotoneaster zabelii Schneid. Gas chromatographic/mass spectrometry (GC-MS) analysis showed that Cotoneaster zabelii Schneid was rich in chemical constituents that could be used as raw materials for medicine and food. An in-depth study of Cotoneaster zabelii Schneid can provide a more accurate understanding of the value of its internal chemical composition, which can be widely applied in medicine to manufacture new drugs and promote the development of medical technology.

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