原子荧光光谱法测定色母粒中铅含量  

Determination of Pb in Color Master Batch by Atomic Fluorescence Spectrometry

作　　者：杨彦丽[1] 孙海波[1] 

机构地区：[1]国家食品质量安全监督检验中心,北京100094

出　　处：《化学分析计量》2014年第2期66-68,共3页Chemical Analysis And Meterage

摘　　要：建立了原子荧光光谱仪测定色母粒中铅的方法。将色母粒样品置于电炉中炭化，然后以HNO3-HClO4洗涤样品残渣，再加热使余酸挥发，通过控制余酸的量使试样溶液的酸度保持在0.8%~1.3%之间，用原子荧光光谱仪对样品消解液进行检测。该方法测定结果的相对标准偏差在3.66%～7.52%之间，加标回收率在82%～120%之间。与电感耦合等离子体光谱法、原子吸收光谱法和电感耦合等离子体质谱法等进行比对检测，检测结果在允许误差之内。A determination method of Pb in color master batch（CMB）by atomic fluorescence spectrometer（AFS） was established. Pre-processing methods of using electric furnace carbonization followed by HNO3-HClO4 washing sample and then catching the acid, sample acidity between 0.8%and 1.3%was controlled by remaining acid amount, the digestion of samples was determined by atomic fluorescence spectrometer with RSD of 3.66%-7.52%and the recovery rate of 82%-120%. The detection results were compared with those of inductively coupled plasma atomic emission spectrometry, atomic absorption spectrometry and inductively coupled plasma mass spectrometry method, and the detection results were in the range of allowable error.

关 键 词：原子荧光光谱法 色母粒 铅 

分 类 号：O657.31[理学—分析化学]