Benzophenone dosage

What is benzophenone?

Benzophenone (CAS 119-61-9) is an aromatic organic compound used in many industrial formulations for its properties as a UV filter, fixer, photostabilizer or chemical intermediate. It is commonly found in:

• Printing inks, especially for food packaging
• Plastics and synthetic materials, to improve their resistance to UV rays
• Cosmetic products (perfumes, varnishes, hair care)
• Various industrial formulations, such as adhesives, varnishes or coatings

Its use is strictly regulated in several sectors due to its endocrine disrupting potential, its photoactive properties and its ability to migrate into finished products, particularly foodstuffs or cosmetics.

Why measure benzophenone?

Benzophenone dosage is crucial for:

• Control residual levels in finished products or materials
• Check compliance with regulatory requirements (e.g. Regulation (EU) No. 10/2011 on materials in contact with food, Cosmetic Regulation No. 1223/2009)
• Control potential migration to food or skin
• Evaluate the safety of industrial formulations
• Meeting consumer and distributor expectations in terms of transparency and traceability

In food packaging, benzophenone is subject to specific migration limits (SMLs). Its detection at trace levels is therefore essential to ensure the safety of the final product.

What matrices can be analyzed?

Benzophenone can be analyzed in a wide variety of media and samples:

• Printing inks and varnishes on packaging
• Plastic films and multi-layer materials
• Liquid or semi-solid cosmetics (perfumes, creams, varnishes)
• Finished products (resins, coatings, adhesives)
• Extracts from food packaging simulating contact conditions
• Rinse water or industrial effluents in the context of environmental control

Analytical methods used

Benzophenone analysis is mainly based on high sensitivity chromatography techniques:

• GC-MS (gas chromatography-mass spectrometry): reference method for the detection of trace amounts of benzophenone in complex matrices
• GC-FID (flame ionization detector): for simpler quantitative determination of purified samples
• Solvent extraction or solid phase microextraction (SPME): depending on the nature of the matrix to be analyzed
• Standardized methods or internal protocols validated according to ISO 17025 requirements

These methods allow for very low quantification limits, necessary to verify compliance with strict regulatory specifications.

YesWeLab: your partner for benzophenone analysis

At YesWeLab , we collaborate with a network of highly specialized laboratories, experts in the analysis of substances to be monitored in packaging, cosmetics, and industrial formulations. All our partners are ISO 17025 certified, and several are COFRAC accredited, guaranteeing reliable, standardized, and actionable results.

Our technical teams support you in:

• Define the most relevant analysis method according to your matrix
• Meet regulatory thresholds or customer requirements
• Obtain clear reports that comply with industry standards
• Carry out your analyses in complete confidentiality via our secure digital platform

Need an accurate dosage of benzophenone in your products?

YesWeLab assists you in evaluating your materials, formulations, and packaging to ensure their safety and compliance.
Contact our team today for a personalized quote or to discuss your specific needs.