Dosage of plasticizers (DEHtP, DBS, ATBC, DINCH, DiBA, DEHA)

Plasticizers are essential additives in polymer manufacturing, as they modify the suppleness, flexibility, and durability of materials. While phthalates were long the most widely used, they are now largely replaced by other compounds considered alternatives, such as DEHtP, DBS, ATBC, DINCH, DiBA, and DEHA. Their presence must nevertheless be monitored, as some are subject to usage restrictions and can pose toxicological risks or migrate into food when present in packaging.

Analytical methods

The analysis of plasticizers relies on gas chromatography, a method particularly suited to these molecules:

• GC-FID (flame ionization detection) , commonly used for the quantification of plasticizers in polymeric matrices.
• GC-MS (gas chromatography coupled with mass spectrometry) , which allows precise identification and reliable quantification, even in trace amounts.

Depending on the needs, these analyses can be carried out after extraction of plasticizers by solvent or after contact with food simulants to assess their migration.

Matrices involved

The dosage of plasticizers is applicable to many materials and consumer products:

• Plastic packaging and films intended for food contact
• Toys and children's items
• Coatings and adhesives
• Polymer materials used in medical devices
• Recycled products containing plasticizer residues

Industrial applications

• Quality control of materials to verify the content of added plasticizers.
• Regulatory compliance with Regulation (EU) No 10/2011 on materials in contact with food and the RoHS Directive.
• Assessment of migration in food packaging.
• Substitution of phthalates with alternatives requiring analytical monitoring to ensure their safety.

Additional analyses

Plasticizer analysis can be combined with other tests available in the YesWeLab catalogue to obtain a comprehensive view of the materials:

• Phthalate assay , for monitoring of historical compounds that are still regulated.
• NIAS assay , in order to identify substances not intentionally added but present in materials.
• Dosage of NOGE , another regulated substance in epoxy resins.
• Global and specific migration tests , essential to guarantee the conformity of food packaging.

Regulations and quality issues

The European Union imposes strict requirements regarding the use and migration of plasticizers in food contact materials. For example, DINCH and ATBC are considered alternatives to phthalates but must be monitored to ensure there is no excessive migration. Others, such as DEHA and DEHtP, are subject to specific restrictions.

Compliance with these standards is essential to guarantee consumer safety and avoid penalties related to non-compliance.

YesWeLab's expertise

At YesWeLab, we work with a network of ISO 17025 accredited laboratories selected for their expertise in the analysis of plasticizers and polymer materials. Each analysis is tailored to the matrix, applicable regulations, and the client's objectives.

Thanks to our digital platform, manufacturers can easily submit their requests, track their samples, and quickly access results. Since 2020, we have supported numerous players in the packaging, polymer materials, food processing, and medical device sectors in their quality control and compliance processes.