Effect of organic additives on silver release from nanosilver-polyethylene composite films to acidic food simulant.
The effects of organic additives (Irgafos 168, Irganox 1076, Tinuvin 622, Chimassorb 944, UV-P, and UV-531) on silver release from nanosilver-polyethylene composite films into an acidic food simulant (3% acetic acid) were investigated using inductively coupled plasma mass spectrometry. The limits of detection and quantification, coefficient of determination, and recoveries of the method used were 3.7ngL-1, 12.4ngL-1, 0.999, and 89-113%, respectively. The results indicated that additives can affect silver release via two simultaneous processes: (i) reactions between organic additives and silver that promote silver release from the composite film to the acidic food simulant; and (ii) the promotion or inhibition of silver release by affecting silver oxidation. High temperature and humidity treatment of the composite films was found to significantly increase silver release by promoting silver oxidation.
Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China. Electronic address: 932128374@qq.com.
Qi-Zhi
QZ
Su
Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China. Electronic address: tlinqb@jnu.edu.cn.
Qin-Bao
QB
Lin
Zhuhai Border Inspection and Quarantine Bureau, Zhuhai 519015, China. Electronic address: 920804736@qq.com.
Chao-Fang
CF
Chen
Zhuhai Border Inspection and Quarantine Bureau, Zhuhai 519015, China. Electronic address: 1446175332@qq.com.
Li-Bing
LB
Wu
Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China. Electronic address: wangzw@jun.edu.cn.
Zhi-Wei
ZW
Wang
D005506:Food Contamination / Q000032:analysis*; D018857:Food Packaging / Q000379:methods*; D020959:Polyethylene / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
D012834:Silver; D020959:Polyethylene
Antioxidant; Light stabilizer; Migration; Nanoparticle; Polyethylene; Release; Silver