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

Table 5

Formaldehyde content (μg/g) and respective difference (%) from target paraformaldehyde equivalents used as a part of the synthesis process.

Sample	3	4	5	6
Paraformaldehyde, % difference from target equivalents	−2.0	−1.0	+1.0	+2.0
Formaldehyde content, μg/g	708	1130	1456	1565