10 PBBs Mixed Standard: Key Facts & FAQs

10 PBBs Mixed Standard is a certified reference solution containing ten polybrominated biphenyl congeners dissolved in a toluene/isooctane solvent system, designed for accurate quantitative analysis of PBB contaminants in environmental, food, and regulatory testing workflows.

SKU

P1539230

Number of PBB Congeners

10 congeners in a single mixed solution

Solvent System

Toluene / Isooctane

Intended Use

Quantitative calibration and verification standard for PBB analysis by GC-MS or GC-ECD

Supplier Reference

PT72001MK-100TY (Putan Bio / 谱同生物)

Regulatory Relevance

PBBs are restricted under RoHS, REACH, and Stockholm Convention; this standard supports compliance testing

What Are Polybrominated Biphenyls (PBBs)?

Polybrominated biphenyls (PBBs) are a family of halogenated aromatic compounds in which two phenyl rings are joined by a single bond and one or more hydrogen atoms are replaced by bromine. Commercially, PBB mixtures were widely used as additive flame retardants in plastics, textiles, and electronic components from the 1970s onward. Due to their environmental persistence, bioaccumulation potential, and toxicity, PBBs are now regulated or banned under several international frameworks including the Stockholm Convention on Persistent Organic Pollutants, the EU RoHS Directive, and REACH legislation. Analytical standards such as the 10 PBBs Mixed Standard (P1539230) are therefore essential for monitoring compliance and quantifying residue levels.

Product Composition and Solvent System

The 10 PBBs Mixed Standard (P1539230) contains ten individual polybrominated biphenyl congeners formulated together in a single ready-to-use solution. The solvent system is a toluene/isooctane blend, which provides good solubility for lipophilic PBB congeners while remaining compatible with common chromatographic injectors and autosamplers. Toluene acts as the primary solvating agent for the high-bromine congeners, while isooctane helps to reduce volatility and improve stability during storage and handling. Users should consult the product certificate of analysis (CoA) for the exact identity, nominal concentration, and certified uncertainty of each congener included in the mixture.

Recommended Analytical Applications

The 10 PBBs Mixed Standard is primarily used as a calibration standard and instrument performance verification solution for gas chromatographic methods. Common detector configurations include gas chromatography coupled with mass spectrometry (GC-MS or GC-MS/MS) and gas chromatography with electron capture detection (GC-ECD), both of which provide the sensitivity required for regulatory trace-level determination of PBBs in polymer materials, food matrices, and environmental samples. The standard is also suitable for method development, linearity verification, and recovery studies. When performing RoHS or REACH compliance testing, analysts should verify that the method used meets the sensitivity and selectivity requirements of the applicable standard (e.g., IEC 62321 series for RoHS substances in electrotechnical products).

Storage, Handling, and Safety Considerations

As a solution in toluene/isooctane, the 10 PBBs Mixed Standard must be stored away from heat sources, open flames, and oxidising agents. Toluene is classified as a flammable liquid and a reproductive toxin (Category 2 under GHS); isooctane is similarly flammable. Both solvents require handling under adequate ventilation or in a fume hood, with appropriate personal protective equipment including solvent-resistant gloves and safety eyewear. PBB congeners themselves are persistent organic pollutants and should be treated as hazardous waste in accordance with local regulations. Store the sealed vial at the temperature specified on the product label (typically 2–8 °C or as stated on the CoA) and protect from light to maximise shelf life. Always refer to the Safety Data Sheet (SDS) supplied with the product before use.

Ordering and Quality Assurance

The 10 PBBs Mixed Standard is listed under SKU P1539230 in the Aladdin Scientific catalogue and is sourced from Putan Bio (谱同生物) under the supplier reference PT72001MK-100TY. Each lot is accompanied by a certificate of analysis detailing the identity confirmation, nominal concentrations, certified values where applicable, and expiry date. For procurement enquiries, volume pricing, or custom concentration requirements, please contact Aladdin Scientific customer service. When placing orders, ensure the correct pack size and solvent specification are selected. For recurring compliance testing programmes, consider establishing a blanket order or requesting advance notification of lot changes to maintain method continuity.

Frequently asked questions

What ten PBB congeners are included in this mixed standard?

The specific identities and concentrations of the ten PBB congeners are documented on the certificate of analysis (CoA) supplied with each lot. Please request the CoA from Aladdin Scientific customer service or download it from the product page using the lot number. Common congeners found in commercial PBB mixed standards include mono- through deca-brominated biphenyls, but the exact composition should always be confirmed from the CoA rather than assumed.

Why is toluene/isooctane used as the solvent for PBB standards?

PBB congeners, particularly higher-brominated ones, are highly lipophilic and have limited solubility in polar solvents. Toluene effectively dissolves these compounds and is fully compatible with GC injection systems. Isooctane is blended in to reduce volatility, lower flammability risk slightly compared to neat toluene, and improve solution stability during long-term storage. This solvent combination is a widely accepted choice in certified reference material preparation for organohalogen analytes.

Is this standard suitable for RoHS and REACH compliance testing?

Yes, PBBs are restricted substances under both the EU RoHS Directive and REACH Regulation, and the 10 PBBs Mixed Standard can be used as a calibration or verification standard within compliant analytical methods such as those described in the IEC 62321 series. However, users must validate that their complete method — including extraction, cleanup, and instrument parameters — meets the required detection limits and selectivity for the specific regulatory application. Always confirm that the lot-specific certified values on the CoA meet your method's traceability requirements.

How should the 10 PBBs Mixed Standard be stored to maintain its stability?

Store the sealed vial at the temperature specified on the product label and CoA, typically 2–8 °C, in a dedicated flammable-solvent refrigerator away from ignition sources. Protect the solution from light and moisture. Once opened, minimise headspace by using appropriate volume aliquots and reseal immediately. Discard the standard after the expiry date stated on the CoA, as concentration changes due to evaporation or degradation may compromise analytical results.

Can Aladdin Scientific provide a custom PBB standard with different congeners or concentrations?

For custom formulation enquiries — such as different congener combinations, alternative solvents, or non-standard concentrations — please contact Aladdin Scientific customer service directly. Custom reference standards may be available subject to minimum order quantities and lead times. Providing details of your target analytes, required concentration range, solvent preference, and intended analytical method will help the team assess feasibility and provide an accurate quotation.

References

1. European Parliament and of the Council. Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS recast). Official Journal of the European Union, 2011.
2. IEC 62321 series: Determination of certain substances in electrotechnical products. International Electrotechnical Commission.
3. Stockholm Convention on Persistent Organic Pollutants. United Nations Environment Programme, 2001 (amended).
4. Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). Official Journal of the European Union, 2006.

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.