Ubiquinone–Ubiquinol Redox Analysis Service by LC–MS/MS

What Are Ubiquinone and Ubiquinol and Why Measure Redox Status?

Ubiquinone and ubiquinol are the oxidized and reduced forms of coenzyme Q (CoQ)—a redox-active quinone central to mitochondrial electron transport and cellular redox chemistry. Measuring both forms enables readouts such as Ubiquinol:Ubiquinone ratio (or % oxidized) that can be compared across conditions in mechanistic research workflows.

A practical challenge is that ubiquinol can oxidize during collection, storage, and preparation, which can distort redox metrics if stability is not controlled. A fit-for-purpose assay therefore combines targeted detection with stability-aware workflow design so the redox pair is measured as it exists in the sample—not as it changes on the bench.

Ubiquinone–Ubiquinol LC–MS/MS Testing Options at Creative Proteomics

Most mammalian projects focus on CoQ10, quantified as ubiquinone-10 (UQ10) and ubiquinol-10 (UL10). Depending on the model system, other homologs (e.g., CoQ9) may also be relevant. Our service is structured as targeted options that match how clients use the data—either to obtain robust concentrations, redox metrics, or model-specific homolog coverage.

Core Redox Pair Quantification

Quantify oxidized and reduced CoQ in the same run and report per-sample results plus redox-ready fields.

Redox Metric–Focused Workflow (stability-controlled)

Designed for projects where redox metrics are the primary endpoint, with enhanced stability emphasis to reduce ex vivo oxidation effects.

Homolog Expansion (optional)

Add homolog coverage (e.g., CoQ9 alongside CoQ10) when required by your model system, while keeping the same reporting structure.

Ubiquinone/Ubiquinol Panel Outputs: Analytes, Total CoQ, and Redox Metrics

How the Assay Works: Stability-Controlled Ubiquinone/Ubiquinol Workflow

Analytical Methods and Core Instruments for Ubiquinone–Ubiquinol Analysis

Core UHPLC Platform: Thermo Scientific Vanquish UHPLC (or equivalent UHPLC)

Typical chromatography (project-dependent)

• Reversed-phase C18-class column (2.1 mm ID; sub-2 µm particles)
• Column temperature commonly in the 40–55 °C range
• Short, stability-friendly gradients suited to nonpolar redox analytes

Core MS/MS Platform: Thermo Scientific TSQ Altis (or equivalent triple quadrupole)

Key acquisition features

• Targeted scheduled MRM optimized for UQ/UL transitions
• Ionization and source settings tuned per matrix to balance sensitivity and robustness
• QC-driven tuning to support reproducible quantification across batches

Vanquish UHPLC (Figure from Thermo)

TSQ Altis Triple Quadrupole MS (Figure from Thermo Scientific)

Method Comparison for Ubiquinone–Ubiquinol Quantification

If your goal is reliable ubiquinol/ubiquinone ratio with QC-anchored quantification across batches, targeted LC–MS/MS (MRM) is typically the most direct and validation-friendly approach.

Ubiquinone–Ubiquinol Analysis Service Service: Results and Data Analysis

This section supports method-validation–oriented teams who need to justify assay selection.

Standard Deliverables

• Results table for ubiquinone-10 and ubiquinol-10 (per sample)
• Derived metrics table: total CoQ10 and redox ratio / % oxidized (as defined)
• Batch QC summary: blanks, pooled QC checks, internal standard performance, drift overview
• Representative chromatograms: selected MRM/EIC traces for key analytes and QCs
• Method appendix: brief prep overview + LC–MS/MS acquisition summary + reporting rules

Scheduled-MRM chromatograms for UQ10, UL10, and UQ9 showing RT-windowed integration and qualifier-ion confirmation in tissue and plasma matrices.

Calibration curve (≥6 points) with regression and R², plus a compact summary of linear range, LLOQ/LOQ, accuracy/recovery, and intra-/inter-batch CV.

Group-level visualization of CoQ redox outputs: heatmap of UQ/UL and totals with an accompanying redox-ratio distribution plot for group comparison.

Applications of Ubiquinone–Ubiquinol Redox Profiling

Mitochondrial Function Research

Track CoQ redox shifts under metabolic perturbations and ETC modulation.

Oxidative Stress Research

Compare ubiquinol:ubiquinone ratio or % oxidized across experimental conditions.

Drug Mechanism Projects

Monitor redox balance changes after compound treatment in cells or tissues.

Aging and Metabolic Research

Evaluate condition-driven changes in CoQ pools and redox status across cohorts.

Nutraceutical and Formulation R&D

Quantify ubiquinone/ubiquinol in supplements and formulations for stability testing.

Model-Specific Homolog Profiling

Add CoQ9 coverage when homolog composition varies by system.

Sample Requirements and Handling for Ubiquinone/Ubiquinol (Redox-Sensitive)

Ubiquinol is redox-sensitive and can oxidize during handling. To preserve meaningful redox readouts, keep samples cold, protected from light, and minimize thaw time. Ship biological matrices on dry ice, and provide a clear sample manifest (ID, matrix, group, collection/freeze date, and any normalization info such as cell count or tissue weight).

FAQs for Ubiquinone/Ubiquinol Analysis Service