New user? / Forgot your password?
0 Item | 0,00 €
DPPD-quinone
DPPD-quinone High-Purity Reference Materials for Confident Compliance
Ensure traceable, defensible results in complex matrices with HPC Standards high-purity DPPD-quinone reference materials. Purpose-built for LC-MSMS and LC-HRMS workflows, our standards support accurate identification, quantification, and method validation across environmental monitoring, industrial process control, and NIAS assessments. Supplied with batch-specific documentation aligned to international quality requirements, we offer neat materials and ready-to-use solutionsplus custom concentrations and isotopically labelled analogues on request. Rely on expert technical support, fast, temperature-controlled shipping, and proven QAQC performance to accelerate your rubber antioxidant transformation studies and meet regulatory expectations with confidence.
Product | Catalog No./ CAS No. | Quantity | Price | |
|---|---|---|---|---|
 | 691129 | 1X5MG | ||
D10-DPPD-quinone solution |  | 694418 | 1X1ML | |
 | 689475 | 1X10MG | Please log in. | |
ISO 17034 Certified Reference Material DPPD-quinone solution |  | 694404 | 1X1ML | Please log in. |
High-purity reference materials for DPPD-quinone to support confident identification, quantification, and compliance in food and environmental residue analysis.
Overview
DPPD-quinone is the oxidative transformation product of N,N'-diphenyl-p-phenylenediamine (DPPD), a widely used antioxidant and antidegradant in rubber and polymer applications. As a reactive quinone/diimine species, it is relevant in studies of rubber leachables, industrial wastewater, environmental transformation pathways, and potential migration from elastomeric materials into food-contact environments.
Its detection in complex matrices requires selective and stable reference materials to ensure method validation, routine monitoring, and inter-laboratory comparability.
Chemical Identity and Synonyms
- Common name: DPPD-quinone (oxidation product of DPPD)
- Structural class: aromatic quinone/diimine derivative of diphenyl-p-phenylenediamine
- Synonyms (descriptive): DPPD oxidation product; diphenyl-p-phenylenediamine quinone-diimine (descriptive)
- Note: Specific registry identifiers vary across literature due to differing oxidation states and tautomeric/structural assignments. Laboratories should verify target structure and exact mass prior to quantitative work.
Formation and Sources
- Formed by oxidative aging of DPPD in air, light, or in the presence of oxidants (e.g., during rubber service life or environmental exposure).
- Expected in leachates from rubber materials, tire wear particle extracts, process waters, and industrial effluents where DPPD is present.
- Potential occurrence in non-target environmental screening datasets as a DPPD-related marker.
Uses
- Not an intentional additive; it is a transformation product used as an analytical target/analyte.
- Employed as a marker for rubber antioxidant degradation in product stewardship, environmental forensics, and materials aging studies.
Regulatory Landscape
- No universal substance-specific maximum residue limits identified for DPPD-quinone in food or the environment. Requirements may arise from general chemical safety, product stewardship, and wastewater discharge regulations.
- Compliance frameworks: REACH (EU), CLP/GHS classification principles (hazard communication), TSCA (US) for related chemicals; local regulations may request monitoring of transformation products from industrial activities.
- For food-contact contexts, assessment may be required under general migration or non-intentionally added substances (NIAS) evaluations.
Monitoring and Target Matrices
- Environmental: surface water, stormwater, road runoff, wastewater, sediments, tire wear particle extracts.
- Industrial: process water, production site effluents, in-process control samples, product aging studies.
- Food/packaging: migration studies from elastomeric components and seals (as part of NIAS screening and risk assessments).
Analytical Methods
- LC-MS/MS: Preferred for sensitivity and selectivity; multiple reaction monitoring for quantification.
- LC-HRMS: Useful for suspect/non-target screening and confirmation of exact mass and fragments.
- HPLC-UV/Vis: Possible for screening when standards and co-elution checks are available, though selectivity can be limited in complex matrices.
- Derivatization is generally not required but may be explored to enhance stability or detection depending on matrix and instrument conditions.
Sample Preparation
- Typical workflows: Solid-phase extraction (SPE) for aqueous samples; liquid–liquid extraction for organic-rich matrices; QuEChERS-type approaches adapted for complex matrices.
- Protect from light and minimize exposure to oxidizing or reducing agents during preparation to maintain analyte integrity.
- Use amber vials, chilled autosampler conditions, and antioxidant-free labware where feasible.
Quality Control and Calibration
- Employ matrix-matched calibration or standard addition for complex matrices to mitigate matrix effects.
- Include procedural blanks, spiked recovery samples, and replicate injections.
- Use internal standards where available; isotopically labelled analogues improve accuracy and compensate for extraction and ionization variability.
Health Impact — Human Toxicity
- Quinone-type compounds are typically electrophilic and may cause skin/eye irritation and sensitization; they can participate in redox cycling leading to oxidative stress.
- Inhalation or dermal exposure should be minimized; use appropriate engineering controls and PPE.
- Toxicological datasets specific to DPPD-quinone are limited; apply read-across caution from related quinone/diimine species and adhere to precautionary handling.
Environmental Impact — Fate and Effects on Wildlife
- Potential reactivity with nucleophiles in natural waters and biota due to electrophilic character.
- May form additional transformation products via reduction/oxidation or coupling reactions; environmental persistence depends on conditions (pH, light, organic matter).
- Ecotoxicity data are limited; targeted studies are recommended where local exposure is expected (e.g., tire wear-impacted waters).
Storage and Stability
- Store reference materials in tightly closed, amber containers at 2–8 °C or as specified on the Certificate of Analysis (CoA).
- Protect from light, moisture, and oxidants/reductants. Avoid repeated freeze–thaw cycles; prepare working solutions freshly or aliquot.
Safety Measures and Handling
- Handle in a fume hood; avoid inhalation, ingestion, and skin/eye contact.
- Wear lab coat, nitrile gloves, and safety glasses; use splash protection when appropriate.
- Dispose of waste according to local regulations for organic laboratory chemicals and potentially hazardous transformation products.
Applications in Food and Environmental Analysis
- Environmental surveillance of rubber antioxidant transformation products in runoff and surface waters.
- Industrial hygiene and process control in rubber and polymer manufacturing settings.
- NIAS investigations and migration testing for food-contact elastomeric components within supply chain quality programs.
Related Compounds and Interferences
- Parent compound: DPPD (N,N'-diphenyl-p-phenylenediamine).
- Other antioxidants and their quinone/diimine oxidation products may co-occur and interfere chromatographically or spectrally; confirm identity with accurate mass and qualifier ions/ion ratios.
Analytical Performance Targets
- Typical LOQs in clean aqueous matrices with LC-MS/MS: low ng/L to tens of ng/L depending on instrument and SPE recovery.
- Precision goals: RSD ≤ 15% for routine quantification; accuracy within 80–120% recovery in matrix spikes, subject to method validation plans.
Reference Materials from HPC Standards
- HPC Standards GmbH supplies high-purity DPPD-quinone reference materials designed for calibration, method validation, and QA/QC in accredited and non-accredited laboratories.
- Supplied with documentation including purity data and batch-specific information aligned with international quality requirements.
- Formats: neat material (where applicable) and ready-to-use solutions at defined concentrations; custom concentrations on request.
- Related products: parent DPPD and selected transformation products; isotopically labelled analogues where available to enhance quantification robustness.
Ordering and Technical Support
- Packaging: amber vials with tamper-evident closures; multiple pack sizes available to fit throughput and stability needs.
- Lead times: prompt shipment under controlled conditions; temperature-controlled logistics available.
- Technical services: method development support, selection of internal standards, and custom mixtures to streamline multi-analyte workflows.
- Contact HPC Standards GmbH for quotations, CoAs, safety documentation, and regulatory support for your application.