Accelerating high quality bioanalytical LC/MS/MS assays using fused-core columns.

Area of Science:

• Analytical Chemistry
• Biochemistry
• Pharmacokinetics

Background:

• Traditional bioanalytical methods often require long run times, impacting throughput.
• Optimizing chromatography conditions is crucial for efficient drug metabolism and pharmacokinetic studies.
• Fused-core particle technology offers advantages in speed and efficiency for chromatographic separations.

Purpose of the Study:

• To develop and validate ultra-fast bioanalytical methods using liquid chromatography-tandem mass spectrometry (LC/MS/MS).
• To evaluate the performance of these methods at high flow rates (1.0-3.0 mL/min) and short column formats.
• To demonstrate compliance with bioanalytical regulatory guidance for accuracy, precision, sensitivity, specificity, and ruggedness.

Main Methods:

• Development of short-column (fused-core particles) LC methods.
• Utilized high flow rates ranging from 1.0 to 3.0 mL/min.
• Employed rapid, non-ballistic gradients (0.33 min) for accelerated separations.

Main Results:

• Achieved comparable or superior performance in accuracy, precision, sensitivity, and specificity compared to slower methods.
• Demonstrated method ruggedness over an extended period (over two years).
• All developed methods met stringent bioanalytical regulatory criteria.

Conclusions:

• Ultra-fast LC/MS/MS methods utilizing fused-core particles and high flow rates are viable for bioanalysis.
• These methods provide significant advantages in speed without compromising analytical performance.
• The developed assays are robust, reliable, and suitable for regulatory submission.