Performance Evaluation of Automated Magnetic Beads Extraction Method for Extraction of Serum Fat-soluble Vitamins by LC-MS/MS Detection
10.3969/j.issn.1671-7414.2024.01.024
- VernacularTitle:自动化磁珠法提取血清脂溶性维生素应用LC-MS/MS检测的性能评价
- Author:
Zhuo KONG
1
;
Chunyan LI
Author Information
1. 北京积水潭医院医学检验中心,北京 100035
- Keywords:
automated magnetic beads extraction method;
liquid chromatography tandem mass spectrometry;
fat-soluble vitamins
- From:
Journal of Modern Laboratory Medicine
2024;39(1):131-135,145
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the performance of the automated magnetic beads extraction method for extraction of serum fat-soluble vitamins by liquid chromatography-tandem mass spectrometry(LC-MS/MS).Methods A total of 120 clinical residual serum samples were collected automated magnetic beads extraction method was applied to extract serum fat-soluble vitamins A,D2,D3,E and K.The linearity,limit of quantification,precision,accuracy,carryover and matrix effect of fat-soluble vitamins A,D2,D3,E and K were detected by LC-MS/MS.The consistency of the method and conventional extraction method was compared.Results The linear correlation coefficients for extracting fat-soluble vitamins A,D2,D3,E and K by automated magnetic beads extraction method were all greater than 0.99,and the quantitative limits for these five fat-soluble vitamins were 5,0.25,0.25,125 and 0.025 ng/ml.The intra-batch precision and inter-batch precision were 0.66%～4.83%and 0.15%～3.70%,respectively,and the average spike recovery rate was 87.05%～111.11%.The matrix effect was 95.43%～99.07%,and the difference between the mean value of the cyclic injection results of high-low value samples and the mean value of the cyclic injection results of low-low value samples was less than 3s of the mean value of the cyclic injection results of low-low value samples.The statistical analysis showed that the correlation between the results of the automated magnetic beads extraction method and the conventional extraction method was good(r＞0.99),and there was no significant bias in the detection results of the two methods.Conclusion The automated magnetic beads extraction method for extraction of fat-soluble vitamins had good detection performance,which may be expected to improve sample flux and analysis efficiency.
