期刊
出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03601234.2021.1913014
关键词
Permethrin; UHPLC; extraction; impregnated fabrics
资金
- Faperj (Fundacao Carlos Chagas Filho de Amparoa Pesquisa do Estado do Rio de Janeiro) [E-26/201.405/2014]
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) [309091/2017-9]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
Permethrin was extracted from fabrics using a detailed study and determined by UHPLC-DAD. The method showed satisfactory accuracy with extraction efficiency up to 95.2%, and the concentration of permethrin varied in different commercial fabric samples.
Permethrin is a synthetic pyrethroid insecticide that is largely used in the impregnation of fabrics employed for different purposes. This paper reports a detailed study on the conditions for its extraction from fabrics and for its determination by ultra-high performance liquid chromatography with diode array detection (UHPLC-DAD). Several parameters that could affect the extraction efficiency of permethrin were evaluated, such as the extraction time, agitating mode (mechanical or ultrasound-assisted), solvent type (methanol or acetonitrile), concentration, and volume. Under optimized conditions, the extraction was performed for 10 min using a 2 x 2 cm piece of impregnated fabric and 5 mL of pure methanol. The flask containing the sample and the solvent was shaken mechanically using a horizontal roller mixer. The accuracy of the method was assessed by a recovery test, which presented satisfactory results ranging from 86.8% to 95.2%. The method was employed in the analysis of nine samples of commercial fabrics of different colors and grammages that were impregnated with permethrin. The concentration of permethrin found in these samples varied between 25.6 +/- 4.2 and 934 +/- 119 mg m(-2).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据