Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Speciation Rates01:07

Speciation Rates

21.3K
Overview
21.3K
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.4K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.4K
Valence Bond Theory02:42

Valence Bond Theory

8.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.9K
Properties of Transition Metals02:58

Properties of Transition Metals

26.4K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
26.4K
Formation of Species01:31

Formation of Species

39.5K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.5K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

497
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
497

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Metformin and cRGDfc-Modified Nanoparticles Loaded with Curcumin for Age-Related Macular Degeneration: In Vitro Pharmacodynamics and Molecular Mechanisms.

Pharmaceutics·2026
Same author

Surface Defect-Compensating Thiophene Ligands Reinforce Charge Transport in CsPbI<sub>3</sub> Quantum Dot Solar Cells.

ACS applied materials & interfaces·2026
Same author

Morphological study on the larvae of different instars of Bodilus gregarius (Coleoptera: Aphodiinae: Aphodiini).

Arthropod structure & development·2026
Same author

Investigation of the Multi-target Regulation of Neurotransmitter Dysfunction By Xiaoer Huanglong Granule in Attention Deficit Hyperactivity Disorder: Network Pharmacology Combined with Experimental Validation.

Current pharmaceutical design·2026
Same author

Synergistic Interfacial Passivation and Dipole-Field Engineering for Enhanced Charge Extraction in CsPbI<sub>3</sub> Perovskite Quantum Dot Solar Cells.

ACS applied materials & interfaces·2026
Same author

Negative Thermal Expansion Material-Mediated Stress Engineering for Enhancing the Mechanical and Thermal Stability of Flexible Perovskite Solar Cells.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

[Research status and comprehensive evaluation strategies for quality uniformity of Chinese patent medicines].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same journal

[Clinical research evidence map analysis of TCM in treatment of unstable angina pectoris in elderly patients].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same journal

[Diagnostic criteria for kidney Yang deficiency syndrome in male infertility].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same journal

[Study on metabolism and excretion of Yanlishuang Oral Dripping Pills in rat bile, feces, and urine based on chromatography-mass spectrometry technology].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same journal

[Effect and mechanism of Ligustrum robustum extract in intervening in lipid metabolism pathways to reduce lipid levels in hyperlipidemic mice].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
Same journal

[Metabolomics and metagenomics reveal mechanism of Xinglou Chengqi Decoction in preventing cerebral ischemia-reperfusion injury].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2026
See all related articles

Related Experiment Video

Updated: Jul 27, 2025

Preparation of DMMTAV and DMDTAV Using DMAV for Environmental Applications: Synthesis, Purification, and Confirmation
06:23

Preparation of DMMTAV and DMDTAV Using DMAV for Environmental Applications: Synthesis, Purification, and Confirmation

Published on: March 9, 2018

5.6K

[Arsenic speciation and valence].

Jing Liu1, Ming-Yi Sun2, Hui-Min Wu1

  • 1School of Chinese Material Medica, Beijing University of Chinese Medicine Beijing 102488, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|June 7, 2023
PubMed
Summary
This summary is machine-generated.

Arsenic speciation and valence are crucial for understanding the activity and toxicity of traditional Chinese medicines (TCMs). This review covers arsenic properties, metabolism, toxicity, and analytical methods for arsenic-containing TCMs.

Keywords:
absorptionanalytical assayarsenicmetabolismspeciation and valencetoxicity

More Related Videos

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging
06:29

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging

Published on: February 15, 2021

3.5K
Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria
06:52

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria

Published on: December 19, 2017

7.9K

Related Experiment Videos

Last Updated: Jul 27, 2025

Preparation of DMMTAV and DMDTAV Using DMAV for Environmental Applications: Synthesis, Purification, and Confirmation
06:23

Preparation of DMMTAV and DMDTAV Using DMAV for Environmental Applications: Synthesis, Purification, and Confirmation

Published on: March 9, 2018

5.6K
A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging
06:29

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging

Published on: February 15, 2021

3.5K
Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria
06:52

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria

Published on: December 19, 2017

7.9K

Area of Science:

  • Analytical Chemistry
  • Pharmacology
  • Toxicology

Context:

  • Arsenic is present in natural compounds used in Traditional Chinese Medicine (TCM).
  • Realgar, orpiment, and white arsenic are common arsenic-containing TCM ingredients.
  • 37 Chinese patent medicines listed in the Chinese Pharmacopoeia (2020) contain realgar.

Purpose:

  • To review the importance of arsenic speciation and valence in arsenic-containing TCMs.
  • To highlight the limitations of traditional elemental analysis in TCM research.
  • To provide a comprehensive overview of arsenic's properties, metabolism, toxicity, and analytical methods in TCM.

Summary:

  • Arsenic speciation and valence significantly influence the activity, toxicity, and bioavailability of arsenic-containing TCMs.
  • Traditional elemental analysis methods fail to account for the critical role of arsenic's chemical form.
  • This review examines arsenic's properties, absorption, metabolism, toxicity, and analytical assays relevant to TCM.

Impact:

  • Emphasizes the need for speciation analysis in TCM quality control and safety assessment.
  • Informs the development of safer and more effective arsenic-based TCM formulations.
  • Advances the understanding of arsenic's role in traditional pharmacopeia for modern scientific application.