T/SQIA 119-2025 Oral cleaning and care products—Determination of 19 kinds of synthetic colorants such as food yellow 4 in toothpastes and oral rinses

Scope

This document specifies a method for determining the content of 19 synthetic colorants, including Food Yellow 4, in oral care products by high-performance liquid chromatography, including principles, reagents and materials, instruments and equipment, analysis steps, and result analysis. This document is applicable to the determination of the content of 19 synthetic colorants, including Food Yellow 4, added to toothpaste and mouthwash. The 19 synthetic colorants referred to in this method include colorants such as Food Yellow 4 (CI 19140), Acid Yellow 1 (CI 10316), Acid Orange 6 (CI 14270), Food Yellow 13 (CI 47005), Food Red 9 (CI 16185), Food Red 7 (CI 16255), Food Red 12 (CI 17200), Food Yellow 3 (CI 15985), Food Red 17 (CI 16035), Food Red 1 (CI 14700), Acid Yellow 73 (CI 45350), Acid Red 87 (CI 45380), Food Red 14 (CI 45430), Acid Orange 7 (CI 15510), Acid Red 92 (CI 45410), Food Blue 1 (CI 73015), Food Green 3 (CI 42053), Food Blue 2 (CI 42090), and Food Blue 5 (CI 42051).

Development Information

Related Standards