FOOD SCIENCE ›› 2019, Vol. 40 ›› Issue (18): 329-334.doi: 10.7506/spkx1002-6630-20180727-320

• Safety Detection • Previous Articles     Next Articles

Determination and Stability of Titanium Acetylacetone in Printed Layer of Polyethylene Film

WANG Yini, LIN Qinbao, LI Zhong, ZHONG Huaining, PAN Jingjing   

  1. (1. Key Laboratory of Product Packaging and Logistics of Guangdong Regular University, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China; 2. Zhuhai Entry-Exit Inspection and Quarantine Bureau Technique Center, Zhuhai 519070, China; 3. National Reference Laboratory for Food Content Material, Guangdong Provincial Key Laboratory of Import and Export Technical Measures of Animal, Plant and Food, Technical Center of Guangdong Inspection & Quarantine Bureau, Guangzhou 510623, China)
  • Online:2019-09-25 Published:2019-09-23

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Abstract: A gas chromatography mass spectrometry (GC-MS) method and a liquid chromatography-mass spectrometry (LC-MS) method were established and optimized for detecting titanium acetylacetone (TAA). The existing form of TAA standard was identified using the proposed methods. The acetylacetone (AA) and titanium contents in TAA standard, gloss oil, ink, and printed materials were detected using high performance liquid chromatography (HPLC) and inductively coupled plasma optical emission spectrometry (ICP-OES), respectively. Ultraviolet-treated and heat-treated TAA samples were studied using Fourier transform infrared (FTIR) spectroscopy. Results indicated that AA and titanium irons existed in TAA standard solution and therefore needed to be detected separately. Titanium was detected in all samples, while AA was detected in gloss oil and TAA standard but not in ink and printed materials. After heat treatment or ultraviolet (UV) irradiation, oxidation reaction occurred in the carbon-carbon double bond of TAA, which means that this substance was changed.

Key words: gas chromatography mass spectrometry, liquid chromatography mass spectrometry, inductively coupled plasma optical emission spectrometry, titanium acetyl acetone, printing inks

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