J 2023

Capillary Electrophoresis with Interchangeable Cartridges for Versatile and Automated Analyses of Dried Blood Spot Samples

DVOŘÁK, Miloš, Ondrej MORAVČÍK and Pavel KUBÁŇ

Basic information

Original name

Capillary Electrophoresis with Interchangeable Cartridges for Versatile and Automated Analyses of Dried Blood Spot Samples

Authors

DVOŘÁK, Miloš, Ondrej MORAVČÍK (703 Slovakia, belonging to the institution) and Pavel KUBÁŇ (203 Czech Republic, guarantor)

Edition

Analytical chemistry, American Chemical Society, 2023, 0003-2700

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 7.400 in 2022

RIV identification code

RIV/00216224:14310/23:00131500

Organization unit

Faculty of Science

UT WoS

001039692100001

Keywords in English

Anatomy; Calibration; Computer simulations; Genetics; Solvents

Tags

Tags

International impact, Reviewed
Změněno: 25/8/2023 11:54, Mgr. Marie Šípková, DiS.

Abstract

V originále

A novel concept forhighly versatile automated analyses of driedblood spot (DBS) samples by commercial capillary electrophoresis (CE)is presented. Two interchangeable CE cartridges with different fused-silicacapillaries were used for the DBS elutions and the DBS eluate analyses,respectively. The application of one CE cartridge with a wide-borecapillary reduced DBS processing times to a minimum (1-2 minper sample) while fitting the other CE cartridge with a narrow-borecapillary served for highly efficient CE analyses. A comprehensiveinvestigation of major variables affecting liquid handling in CE (capillarylength, internal diameter, and temperature) was carried out with theaim of optimizing both procedures and enabling their maximum flexibility.The application of two CE cartridges also enabled the employment ofCE detectors with different instrumental set-ups and/or principlesas was demonstrated by the optical detection of nonsteroidal anti-inflammatorydrugs (NSAIDs) and the conductivity detection of amino acids (AAs).The presented methods were optimized for the automated CE analysesof 36 DBS samples formed by a volumetric collection of 5 & mu;Lof capillary blood onto Whatman 903 discs and processed by directin-vial elution using the CE instrument. The precision of liquid transfersfor the automated DBS elutions was better than 0.9% and the precisionof CE analyses did not exceed 5.1 and 12.3% for the determinationof NSAIDs and AAs, respectively. Both methods were linear (R (2) & GE; 0.996) over the therapeutic (NSAIDs)and the endogenous (AAs) concentration ranges, had limits of quantificationbelow the typical analyte concentrations in human blood, and achievedsample throughputs of more than 6 DBSs per hour.