Abstract
A solid-phase extraction method using mixed hemimicelles and high-performance liquid chromatographydiode array detection was proposed for the pre-concentration and determination of anthraquinones (AQs) in Radix et Rhizoma Rhei samples. The mixed hemimicelles were synthesized by coating cetyltrimethylammonium bromide (CTAB) on Fe3O4 nanoparticles. Based on the superparamagnetic character of Fe3O4 nanoparticles, the proposed method had some special advantages, including high surface area, facile dispersion, rapid separation, convenient utilization, and environmental benignity. Some important factors that influence extraction efficiency of AQs, including amounts of Fe3O4 nanoparticles and CTAB, solution pH, extraction time, and desorption solvent, were optimized. Under optimum conditions, the recoveries of analyses done on samples spiked with the target analytes were between 96.7% and 106.6%; relative standard deviations ranged from 0.4% to 6.6%. The correlation coefficients varied from 0.9993 to 0.9998. The limits of detection ranged from 2.57 to 6.58 ng mL–1 (at a signal-to-noise ratio of 3). The method developed in the present work is feasible for sample pretreatment of herbal medicines.
Keywords: Aloe-emodin, Anthroquinones, Cetyltrimethylammonium bromide (CTAB), Chrysophanol, Emodin, Herbal medicine samples (HMs), Magnetic nanoparticles, Mixed hemimicelles, Physcion, Radix et Rhizoma Rhei, Rhein
Current Analytical Chemistry
Title: Pretreatment Properties of CTAB Coated Fe3O4 Nanoparticle Mixed Hemimicelle Sorbents for the Analysis of Herbal Medicine Samples
Volume: 8 Issue: 1
Author(s): Hong-Fei Zhang and Yan-Ping Shi
Affiliation:
Keywords: Aloe-emodin, Anthroquinones, Cetyltrimethylammonium bromide (CTAB), Chrysophanol, Emodin, Herbal medicine samples (HMs), Magnetic nanoparticles, Mixed hemimicelles, Physcion, Radix et Rhizoma Rhei, Rhein
Abstract: A solid-phase extraction method using mixed hemimicelles and high-performance liquid chromatographydiode array detection was proposed for the pre-concentration and determination of anthraquinones (AQs) in Radix et Rhizoma Rhei samples. The mixed hemimicelles were synthesized by coating cetyltrimethylammonium bromide (CTAB) on Fe3O4 nanoparticles. Based on the superparamagnetic character of Fe3O4 nanoparticles, the proposed method had some special advantages, including high surface area, facile dispersion, rapid separation, convenient utilization, and environmental benignity. Some important factors that influence extraction efficiency of AQs, including amounts of Fe3O4 nanoparticles and CTAB, solution pH, extraction time, and desorption solvent, were optimized. Under optimum conditions, the recoveries of analyses done on samples spiked with the target analytes were between 96.7% and 106.6%; relative standard deviations ranged from 0.4% to 6.6%. The correlation coefficients varied from 0.9993 to 0.9998. The limits of detection ranged from 2.57 to 6.58 ng mL–1 (at a signal-to-noise ratio of 3). The method developed in the present work is feasible for sample pretreatment of herbal medicines.
Export Options
About this article
Cite this article as:
Zhang Hong-Fei and Shi Yan-Ping, Pretreatment Properties of CTAB Coated Fe3O4 Nanoparticle Mixed Hemimicelle Sorbents for the Analysis of Herbal Medicine Samples, Current Analytical Chemistry 2012; 8 (1) . https://dx.doi.org/10.2174/157341112798472305
DOI https://dx.doi.org/10.2174/157341112798472305 |
Print ISSN 1573-4110 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6727 |
Call for Papers in Thematic Issues
Advancements in biomedicine, corrosion inhibition/monitoring, and lubrication of carbon dots
Carbon dots, a class of carbon-based nanomaterials, have garnered substantial interest in various scientific and engineering fields due to their unique properties, including excellent optical properties, outstanding biocompatibility, easy preparation, good dispersity, ultrasmall size, low toxicity and environmental friendliness. This special issue of Current Analytical Chemistry aims to showcase cutting-edge ...read more
Applications of artificial intelligence in chemical analysis
Artificial intelligence (AI) has demonstrated its versatility in almost all scientific fields, especially analytical chemistry, which is leading the way in the integration of AI. According to Chemical Abstract Services, one of the major disciplines contributing to AI-related publications and patents is analytical chemistry. That?s because techniques such as deep ...read more
Bioanalytical and Biosensor Technologies for Target Molecules
Bioanalytical and biosensor technologies constitute the core of detecting and sensing diverse molecules within living organisms, encompassing proteins, DNA, small molecular metabolites, and beyond. These molecules assume pivotal roles in biological processes, rendering their analysis and sensing indispensable for comprehending biological phenomena and unraveling disease mechanisms. In the current landscape ...read more
Biogeochemistry: global environmental research and management
his issue focuses on the bio-pathways of trace elements (Ni, Co, Cr, Mn, Cd, Pb, Zn and REE) in soil, plant and atmospheric systems. Specific interest in the application of phytotechnologies that utilise hyperaccumulator plants (agro/phytomining). On the basis of understanding the migration and transformation of trace elements in ecosystem, ...read more
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers