Capillary electrophoresis as a clinical tool

Area of Science:

• Clinical Chemistry
• Analytical Biochemistry
• Laboratory Automation

Background:

• Clinical laboratories require accurate results with minimal turnaround time.
• Automated capillary electrophoresis (CE) instrumentation has been available for clinical use for five years.
• Serum protein electrophoresis is a key diagnostic test often requiring automation.

Purpose of the Study:

• To evaluate the utility of automated capillary electrophoresis (CE) in a clinical laboratory setting.
• To explore the application of CE for various diagnostic assays beyond serum protein electrophoresis.

Main Methods:

• Utilized capillary electrophoresis (CE) to automate serum protein electrophoresis.
• Reviewed existing and developing CE methods for haemoglobin variants, drug assays, vitamin analysis, DNA fragment separation, and isoenzyme analysis.

Main Results:

• Successfully implemented CE for automated serum protein electrophoresis, providing clinical results for two years.
• CE methods are established for haemoglobin variant quantitation (isoelectric focusing, free solution).
• Developed CE applications include micellar electrokinetic separations for drug and vitamin assays, and gel-filled capillaries for DNA fragment separation.

Conclusions:

• Automated CE is a viable and effective technology for clinical laboratories, enhancing efficiency and accuracy.
• CE demonstrates broad applicability across diverse diagnostic areas, including specialized assays and genetic analysis.
• Further development and clinical validation are expected to lead to widespread adoption of CE in the next five years.