Analytical Method Development of 2,6-dimethylnaphthalene Dicarboxylate (2,6-NDC) and 2,6-naphthalene Dicarboxylic Acid (2,6-NDA) in Poly (ethylene naphthalate) (PEN)
2013
Sung, J.H., Korea Food and Drug Administration, cheonwon, Republic of Korea | Oh, J.M., Korea Food and Drug Administration, cheonwon, Republic of Korea | Shin, D.W., Korea Food and Drug Administration, cheonwon, Republic of Korea | Choi, J.C., Korea Food and Drug Administration, cheonwon, Republic of Korea | Lim, H.S., Korea Food and Drug Administration, cheonwon, Republic of Korea | Park, S.J., Korea Food and Drug Administration, cheonwon, Republic of Korea | Park, K.W., Korea Food and Drug Administration, cheonwon, Republic of Korea | Kim, S.H., Korea Food and Drug Administration, cheonwon, Republic of Korea | Kim, M.H., Korea Food and Drug Administration, cheonwon, Republic of Korea
Poly (ethylene naphthalate) (PEN), which is likely to be widely used in various application due to good barrier properties, is manufactured by condensation polymerization of 2,6-dimethylnaphthalene dicarboxylate (2,6-NDC) or 2,6-naphthalene dicarboxylic acid (2,6-NDA) with ethylene glycol. In this study, an analytical method to determine monomers in food simulants, which might migrate from PEN food contact materials into food, was developed. The HPLC-UV method was validated for 2,6-NDC and 2,6-NDA. The obtained validation parameters were selectivity, sensitivity, linearity, precision and recovery. The simultaneous HPLC method was considered the be most effective analytical method to determine 2,6-NDC and 2,6-NDA in food simulants.
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