Poly (ethylene naphthalate) (PEN 수지)의 2,6-디메틸나프탈렌 디카복실레이트 (2,6-NDC)과 2,6-나프탈렌디카복실산(2,6-NDA) 분석법 확립 = 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)

다국어 초록 (Multilingual Abstract)

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.

국문 초록 (Abstract)

본 연구에서는 PEN 수지 안전관리를 위하여 HPLC-UV검출기를 이용한 2,6-NDC 및 2,6-NDA 분석법을 확립하였다. 분석법 검증 결과, 2,6-NDC 및 2,6-NDA 모두 0.002μg/mL 검출한계, 0.005 μg/mL 정량한계 및 0.05~1 μg/mL의 농도 범위에서 r2= 0.999 이상의 직선성을 확인할 수있었다. 또한 회수율도 90~110%임을 확인할 수 있었다.

참고문헌 (Reference)

• 1 "http://crl-fcm.jrc.ec.europa.eu/resource_ centre/"
• 2 Korea Food and Drug Administration (KFDA), "Standards and Specifications for Food Utensils, Containers and Packages, Korea"
• 3 Ministry of Health and Welfare, "Standard and specification of utencils, containers and packages, Japan"
• 4 OECD, "SIDS: Initial Assessment Report for 9th SIAM, Dimethyl- 2,6- naphthalenedicarboxylate" UNEP Publications 1999
• 5 FDA, "Inventory of effective food contact substance notification"
• 6 Kim, J. R., "High performance polyester resin, PEM" 12 : 210-222, 2011
• 7 Laskarakis, A., "FTIR and Vis-FUV real time spectroscopic ellipsometry studies of polymer surface modifications during ion beam bombardment" 216 : 131-136, 2004
• 8 National Industrial Chemicals Notification and Assessment Scheme (NICNAS), "Dimethyl 2,6-naphthalene dicarboxylate" NICNAS 1997
• 9 "Commission Regulation No 10/2011 of 14 January 2011 on plastic materials and articles intended to come into contact with food" EU 2011
• 10 National Industrial Chemicals Notification and Assessment Scheme (NICNAS), "2,6-Naphthalenedicarboxylic acid" NICNAS 1997