Novel Method of Analysis for the Determination of Residual Formaldehyde by High-Performance Liquid Chromatography

Figure 2

Recoveries (%) of a 6.0 μg/mL standard solution (corresponding to 1000 μg/g in the material) derivatised for 0, 10, 20, 35, 50, and 80 minutes (squares). The solutions were re-injected after 240 minutes (circles).