相关实验视频

Updated: May 4, 2026

Systematic Approach to Identify Novel Antimicrobial and Antibiofilm Molecules from Plants' Extracts and Fractions to Prevent Dental Caries

Systematic Approach to Identify Novel Antimicrobial and Antibiofilm Molecules from Plants' Extracts and Fractions to Prevent Dental Caries

Published on: March 31, 2021

使用UHPLC-DAD/Q-TOF-MS和多变量化学分析对花粉进行综合质量评估和植物差异化

Fang Tian^1,2, Ying Zhang^1,3, Lixia Chen^1,2

¹Research Center for Traditional Chinese Medicine of Lingnan (Southern China), Jinan University, Guangzhou, China.

Phytochemical analysis : PCA

|February 20, 2025

概括

这项研究开发了一种可靠的方法来区分Typhae Pollen (TP) 种类,使用SEM和HPLC-MS. 它确定了用于质量控制的关键类黄和酸,改进了TP的识别和标准.

科学领域:

药理学是指药理学,即药理学是指药理学.
分析化学分析化学
化学测量化学测量化学测量

背景情况:

花粉 (TP) 是一种中国传统医药产品.
目前用于区分TP植物来源和质量的方法是不可靠的.
这项研究解决了对TP系统质量控制和植物识别的需求.

研究的目的:

为了区分Typhae Pollen (TP) 与Typha angustifolia L. (TA) 和Typha orientalis Presl (TO) 的微观结构特征.
开发一种全面的分析方法来量化TP中的黄和酸.
为TP建立可靠的质量控制和植物来源识别.

主要方法:

扫描电子显微镜 (SEM) 用于微观结构分析.
使用二极管阵列检测和四极点飞行时间质谱学 (UHPLC-DAD-QTOF-MS) 分析17种黄和酸的超高性能液态染色学.
部分最小平方区分分析 (PLS-DA) 和层次聚类分析 (HCA) 用于化学分析.

主要成果:

SEM成功地区分了TA和TO的花粉粒.
开发的UHPLC-MS方法准确量化了TP中的13种黄和4种酸.
化学测量分析有效地区分了TA和TO,确定了14号成分作为TO的关键指标.

结论:

这项研究提供了一种可靠的方法来确定TP的植物起源.
这些发现通过识别关键化学标记物,提高了TP的质量控制.
这项研究为在传统医学中改善TP标准化奠定了基础.

关键词:

在 Typha angustifolia 的研究中,这种类型的Typha orientalis是东方的.在UHPLC-DAD/Q-TOF-MS中使用.黄类化合物黄类化合物多变量化疗化学测量

更多相关视频

HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis

HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis

Published on: November 11, 2022

Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry

Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry

Published on: February 2, 2024

相关概念视频

High-Resolution Mass Spectrometry (HRMS)

High-Resolution Mass Spectrometry (HRMS)

The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For...

Mass Spectrometry: Complex Analysis

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...