분석 방법에 따른 기구 및 용기·포장재 중의 포름알데히드 함량 비교

Abstract

Formaldehyde, classified as a carcinogenic, is primarily known for uses in industrial and medical fields. However, utensils, container and packing materials with daily use such as cups and bowls are also exposed to formaldehyde. Depending on the purpose, there are many analysis methods. In case of Korean Food Standards Codex, extraction test is notified as formaldehyde analysis method on utensils, container and packing materials. In this research, it selected the samples of paper, melamine-formaldehyde resin, silicon rubber, urea-formaldehyde resin and starch for the UV-VIS spectrophotometer method which is formaldehyde analysis method using acetylacetone and HPLC method which measures by derivatizing the 2,4-DNPH to find out which of these methods gives more accurate result by comparing and monitoring the test process. The limit of detection and quantitation of UV-VIS spectrophotometer used in research were 0.035 mg/L and 0.117 mg/L, respectively, and the coefficient of determination (R2) of calibration curve was 0.99970. The limit of detection and quantitation of HPLC-PAD were 0.0018 mg/L and 0.00599 mg/L, respectively. The coefficient of determination (R2) of calibration curve showed 0.999334 meaning that the limit of detection and quantitation, measurement reproducibility and correlation coefficient of the analysis instrument were very superior. After comparing UV-VIS spectrophotometer method and HPLC method, more accurate result can be obtained by HPLC method. In addition, HPLC method could detect a very small amount of formaldehyde that UV-VIS spectrophotometer method could not detect. Based on the research result, it believes that these two methods are proper ways to analyzing formaldehyde on imported or domestic utensils, container and packing materials. Only if the safety regulations are consolidated accurate result can be expected by HPLC method measuring formaldehyde.