[Determination of manganese in human urine by dispersive ionic liquid-liquid microextraction-graphite furnace atomic absorption spectrometry].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 38(3): 216-218, 2020 Mar 20.
Article
em Zh
| MEDLINE
| ID: mdl-32306698
ABSTRACT
Objective:
To establish a method for the determination of manganese in urine with graphite furnace atomic absorption spectrometry (GFAAS) by using ionic liquid microextraction.Methods:
The ethanol, 8-hydroxyquinoline and ionic liquid 1-octyl-3-methyl-imidazolium hexafluorophosphate were used as dispersive solvent, chelating agent and extraction solvent respectively, for the preconcentration of manganese. After the optimal extraction conditions were optimized by single factor rotations, evaluate the performance indicators such as methodological precision, accuracy, and detection limit.Results:
The linear range of urine manganese was 0.0-1.6 µg/L, and the correlation coefficient of standard curve line was 0.992, the detection limit was 0.03 µg/L, the recovery of sample spiked was 84.90%-96.50%, and the relative standard deviation was 0.36%-1.84%.Conclusion:
The method has the advantages of low detection limit, high recovery rate and high sensitivity. It is suitable for the determination of manganese in urine samples from occupational exposure populations and the general population.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Espectrofotometria Atômica
/
Microextração em Fase Líquida
/
Manganês
Limite:
Humans
Idioma:
Zh
Ano de publicação:
2020
Tipo de documento:
Article