Development of a Mixed Solution Certified Reference Material of Vanillin Spices

Area of Science:

• Analytical Chemistry
• Metrology
• Food Science

Background:

• Certified Reference Materials (CRMs) are essential for accurate analytical measurements, quality control, and method validation.
• A stable and traceable CRM for vanillin spices is critical for accurate quantification in diverse food matrices.

Purpose of the Study:

• To develop a mixed solution CRM of vanillin spices in acetonitrile.
• To ensure accurate measurement and traceability of vanillin spices in food products.

Main Methods:

• Gravimetric method used for CRM preparation.
• Ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) employed to elucidate degradation pathways.
• Stability and homogeneity assessments conducted.

Main Results:

• A mixed vanillin spices acetonitrile CRM (GBWE 086557) was successfully developed.
• Methylvanillin, ethylvanillin, and vanillin showed instability in methanol due to acetalization.
• Acetonitrile CRMs exhibited good homogeneity and stability at 4 °C for 9 months and 50 °C for 7 days.

Conclusions:

• The developed acetonitrile CRM provides reliable values for methylvanillin, ethylvanillin, vanillin, and coumarin.
• Acetonitrile is a suitable solvent for vanillin spices CRM, unlike methanol, due to enhanced stability.
• This CRM supports accurate quantification and quality control in food analysis.