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A novel deep eutectic solvent modified magnetic covalent organic framework for the selective separation and determination of trace copper ion in medicinal plants and environmental samples.
Liu, Ya; Yang, Xiaofang; Hu, Jiayi; Lu, Ning; He, Daichun; Chi, Huajian; Liu, Yong; Yang, Shengchun; Wen, Xiaodong.
Afiliación
  • Liu Y; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • Yang X; Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China.
  • Hu J; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • Lu N; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • He D; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • Chi H; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • Liu Y; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
  • Yang S; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China. Electronic address: yangshengchun@dali.edu.cn.
  • Wen X; College of Pharmacy, Dali University, Dali, Yunnan, 671000, China. Electronic address: wenxiaodong@dali.edu.cn.
Anal Chim Acta ; 1290: 342197, 2024 Feb 15.
Article en En | MEDLINE | ID: mdl-38246739
ABSTRACT

BACKGROUND:

Pretreatment techniques should be introduced before metal ion determination because there is very low content of heavy metals in Chinese medicinal plants and environmental samples. Magnetic dispersive micro solid phase extraction (MDMSPE) has been widely used for the separation and adsorption of heavy metal pollutants in medicinal plants and environmental samples. However, the majority of MDMSPE adsorbents have certain drawbacks, including low selectivity, poor anti-interference ability, and small adsorption capacity. Therefore, modifying currently available adsorption materials has gained attention in research.

RESULTS:

In this study, a novel adsorbent MCOF-DES based on a magnetic covalent organic framework (MCOF) modified by a new deep eutectic solvent (DES) was synthesized for the first time and used as an adsorbent of MDMSPE. The MDMSPE was combined with inductively coupled plasma optical emission spectrometry (ICP-OES) for selective separation, enrichment, and accurate determination of trace copper ion (Cu2+) in medicinal plants and environmental samples. Various characterization results show the successful preparation of new MCOF-DES. Under the optimal conditions, the enrichment factor (EF) of Cu2+ was 30, the limit of detection (LOD) was 0.16 µg L-1, and the limit of quantitation (LOQ) was 0.54 µg L-1. The results for the determination of Cu2+ were highly consistent with those of inductively coupled plasma mass spectrometry (ICP-MS), which verified the accuracy and reliability of the method.

SIGNIFICANCE:

The established method based on a new adsorption material MCOF-DES has achieved the selective separation and determination of trace Cu2+ in medicinal and edible homologous medicinal materials (Phyllanthus emblica Linn.) and environmental samples (soil and water), which provides a promising, selective, and sensitive approach for the determination of trace Cu2+ in other real samples.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas Medicinales / Estructuras Metalorgánicas Idioma: En Revista: Anal Chim Acta Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas Medicinales / Estructuras Metalorgánicas Idioma: En Revista: Anal Chim Acta Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos