Cosmetics - Analysis of cosmetic products - Determination of 3-iodo-2-propynyl butylcarbamate (IPBC) in cosmetic preparations, LC-MS methods

This document establishes a precise analytical method for determining the concentration of 3-iodo-2-propynylbutylcarbamate, commonly known as IPBC, within cosmetic products. It utilizes liquid chromatography coupled with mass spectrometry as the primary detection technique, offering high sensitivity and specificity for this preservative. The procedure outlines specific sample preparation steps, instrumental parameters, and calibration requirements necessary to ensure accurate quantification. By providing a standardized approach, it facilitates consistent testing across different laboratories involved in the quality control of personal care items. The methodology addresses the need for reliable data regarding the presence of this compound, which is frequently used to prevent microbial growth in formulations. Detailed protocols are included to handle potential interferences and matrix effects found in various cosmetic bases. This approach supports regulatory compliance and safety assessments by delivering reproducible results essential for monitoring preservative levels in final products. The framework ensures that analytical data generated through this process meets rigorous technical criteria, thereby aiding in the verification of product composition and adherence to safety limits.