Agilent ProteoAnalyzer 12-Capillary Array for CE-SDS Analysis

Overview

The Agilent ProteoAnalyzer 12-Capillary Array is a precision-engineered consumable module designed exclusively for use with the Agilent ProteoAnalyzer system to perform capillary electrophoresis–sodium dodecyl sulfate (CE-SDS) analysis of therapeutic proteins, monoclonal antibodies (mAbs), and other biopharmaceuticals. CE-SDS is a high-resolution, quantitative analytical technique that separates denatured protein species based on molecular weight under reducing or non-reducing conditions. This 12-capillary array enables parallel processing of up to twelve samples per run—significantly increasing throughput while maintaining inter-capillary reproducibility and assay robustness. Each fused-silica capillary is precisely fabricated with an effective separation length of 22 cm and a total length of 39 cm, optimized for consistent electrokinetic injection, efficient thermal dissipation, and minimal analyte adsorption—critical parameters for regulatory-compliant protein purity and size variant assessment.

Key Features

• Parallel 12-capillary architecture enabling simultaneous analysis of twelve independent protein samples per run—reducing per-sample turnaround time without compromising resolution or precision.
• Fused-silica capillaries with chemically stable inner surface coating, engineered to minimize protein adsorption and support repeatable migration times across extended operational cycles.
• Optimized geometry: 22 cm effective separation length ensures adequate resolution for critical quality attributes (CQAs) such as main peak, fragments, and aggregates in mAb analytics; 39 cm total length accommodates standardized cartridge loading and detector alignment within the ProteoAnalyzer platform.
• Manufactured under Agilent’s ISO 13485-certified quality system in Malaysia, ensuring batch-to-batch consistency, traceability, and compliance with ICH Q5E and Q5B guidance for comparability studies.
• Designed for long-term operational stability—capillary arrays demonstrate >100 runs per set under routine QC conditions when used with recommended buffer systems and maintenance protocols.

Sample Compatibility & Compliance

The 12-capillary array supports CE-SDS applications across a broad range of protein therapeutics, including IgG-class monoclonal antibodies, antibody-drug conjugates (ADCs), bispecifics, and recombinant enzymes. It is compatible with both reduced and non-reduced sample preparation workflows, accommodating standard SDS-MOPS and SDS-phosphate running buffers. The array meets requirements for use in regulated environments: data generated using this consumable—when paired with the ProteoAnalyzer system—supports submissions to FDA, EMA, and PMDA under ICH guidelines. Its performance aligns with USP “Electrophoresis” and ASTM E2969-22 “Standard Practice for Capillary Electrophoresis of Proteins,” and supports audit-ready documentation under 21 CFR Part 11 when integrated with Agilent’s compliant software suite.

Software & Data Management

The capillary array operates seamlessly with Agilent’s OpenLab CDS software (version 2.5 or later), which provides full method control, real-time voltage monitoring, automatic peak detection, and quantitative reporting per ICH Q5B Annex 1. Software features include multi-capillary overlay visualization, relative mobility calibration, % area normalization, and automated pass/fail evaluation against user-defined acceptance criteria. Audit trails, electronic signatures, and secure data archiving are enabled in compliance with GLP and GMP requirements. All raw electropherograms and processed reports are stored in vendor-neutral .cdf format, facilitating third-party reprocessing and cross-platform validation.

Applications

• Release testing and stability-indicating assays for biologics manufacturing.
• Comparability assessments pre- and post-process changes (e.g., cell line, purification, formulation).
• Forced degradation studies (thermal, oxidative, acidic/basic stress) to characterize degradation pathways.
• Lot-to-lot consistency evaluation during clinical and commercial production.
• Supporting regulatory filings—including BLA, MAA, and JNDA—as a primary method for size-based purity determination.

FAQ

Is the 12-capillary array compatible with older ProteoAnalyzer models?
Yes—this array is backward-compatible with all ProteoAnalyzer instruments equipped with the CE-SDS module and firmware version 3.2 or higher.
What is the expected lifetime under GMP conditions?
When operated per Agilent’s maintenance schedule and buffer handling recommendations, the array typically achieves ≥100 valid runs with RSD <2% for migration time and <3% for peak area across capillaries.
Can the array be reused after cleaning?
No—this is a single-use, sterile-packaged consumable. Reuse is not supported due to risk of carryover, coating degradation, and non-compliance with regulatory expectations for validated methods.
Does Agilent provide qualification documents for this array?
Yes—each lot ships with a Certificate of Analysis (CoA), Certificate of Conformance (CoC), and full manufacturing traceability records upon request.
How does this array differ from the 4-capillary version?
The 12-capillary configuration doubles throughput versus the 4-capillary array while maintaining identical separation efficiency and detection sensitivity—ideal for high-volume QC labs supporting late-stage clinical or commercial manufacturing.