聚乙烯膜印刷层中乙酰丙酮钛的检测及其稳定性  

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

作　　者：王旖旎 林勤保[1] 李忠[2] 钟怀宁[3] 潘静静 WANG Yini;LIN Qinbao;LI Zhong;ZHONG Huaining;PAN Jingjing(Key Laboratory of Product Packaging and Logistics of Guangdong Regular University, Packaging Engineering Institute, Jinan University,Zhuhai 519070, China;Zhuhai Entry-Exit Inspection and Quarantine Bureau Technique Center, Zhuhai 519070, China;National Reference Laboratory for Food Content Material, Guangdong Provincial Key Laboratory of Import and Export TechnicalMeasures of Animal, Plant and Food, Technical Center of Guangdong Inspection & Quarantine Bureau, Guangzhou 510623, China)

机构地区：[1]暨南大学包装工程研究所,广东普通高校产品包装与物流重点实验室,广东珠海519070 [2]珠海出入境检验检疫局技术中心,广东珠海519070 [3]广东出入境检验检疫局技术中心,广东省动植物与食品进出口技术措施研究重点实验室,国家食品接触材料检测重点实验室,广东广州510623

出　　处：《食品科学》2019年第18期329-334,共6页Food Science

基　　金：广东省动植物与食品进出口技术措施研究重点实验室开放课题（IQTC201804）;国家质检总局科技计划项目（2017IK133）

摘　　要：建立并优化乙酰丙酮钛测定的气相色谱-质谱法、液相色谱-质谱法,并对标准溶液中乙酰丙酮钛的存在形式进行鉴别。采用高效液相色谱法对乙酰丙酮钛标准品、上光油、油墨及印刷样品中的乙酰丙酮进行检测,采用等离子发射光谱法对样品中的钛含量进行检测,用傅里叶红外光谱法对经紫外光(254 nm)照射及加热处理(70 ℃)的乙酰丙酮钛进行研究。结果表明,乙酰丙酮钛在标准溶液中以乙酰丙酮及钛离子的形式存在,需分别检测乙酰丙酮及钛离子。上光油、乙酰丙酮钛标准品中检测到乙酰丙酮,而油墨及印刷样品中未检测到乙酰丙酮;上光油、油墨、乙酰丙酮钛标准品及印刷样品中均检测到钛。乙酰丙酮钛在加热和紫外光照射处理后,碳碳双键发生氧化反应,说明加热和紫外照射均导致该物质发生变质。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.

关 键 词：气相色谱-质谱法 液相色谱-质谱法 等离子体发射光谱 乙酰丙酮钛 印刷油墨 

分 类 号：TS201.6[轻工技术与工程—食品科学] TS206.4[轻工技术与工程—食品科学与工程]