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http://dx.doi.org/10.13103/JFHS.2020.35.3.225

Formaldehyde Monitoring of Hygiene Products in Domestic Market  

Na, Young-Ran (Busan Metropolitan City Health and Environment, Food Analysis Team)
Kwon, Hyeon-Jeong (Busan Metropolitan City Health and Environment, Food Analysis Team)
Cho, Hyun-Nho (Busan Metropolitan City Health and Environment, Food Analysis Team)
Kim, Hyeon-Jin (Busan Metropolitan City Health and Environment, Food Analysis Team)
Park, Yon-Koung (Busan Metropolitan City Health and Environment, Food Analysis Team)
Park, Sung-Ah (Busan Metropolitan City Health and Environment, Food Analysis Team)
Lee, Seong-Ju (Busan Metropolitan City Health and Environment, Food Analysis Team)
Kang, Jung-Mi (Busan Metropolitan City Health and Environment, Food Analysis Team)
Publication Information
Journal of Food Hygiene and Safety / v.35, no.3, 2020 , pp. 225-233 More about this Journal
Abstract
By the standards and specifications for hygiene products, three test methods for formaldehyde are specified for each item type of hygiene product. After derivatization using acetylacetone and 2,4-dinitrophenylhydrazine (2,4-DNPH), formaldehyde is analyzed by spectrophotometer and high-performance liquid chromatography (HPLC). Validation of the three test methods was performed on tissue, diaper lining and waterproof layer, and panty liner products. The results of linearity (R2), limit of detection (LOD), limit of quantification (LOQ), recovery rate (%) and reproducibility (%), showed that all three methods are suitable for analyzing formaldehyde in hygiene products. After derivatization with 2,4-DNPH and cetylacetone, formaldehyde was analyzed at 0, 3, 6, 9, 24 and 48 hours by HPLC. Formaldehyde derivatized with 2,4-DNPH showed no statistically significant change in formaldehyde peak area over time (P>0.05). But, acetylacetone-derivatizated formaldehyde showed a negative correlation coefficient (r) over time (P<0.01). We investigated the residual amounts of formaldehyde in 205 hygiene products distributed in Busan. Among 74 disposable diaper products tested, 73 had low concentrations of formaldehyde (0.13-29.87 mg/kg). Moreover, formaldehyde was not detected in any of 78 tissue, 27 disposable paper towel, 12 disposable dishcloth, 7 paper cup, one brand of paper straw and 6 disposable napkin products.
Keywords
Formaldehyde; Hygiene products;
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