摘要
采用高效液相色谱分离,荧光检测器检测,建立了三种不同类型的玩具中苯酚和双酚A的测定方法。用超声提取的方式处理样品,对提取溶剂和提取时间进行选择,确定以甲醇-水(65:35,V/V)作为提取溶液,超声提取20min。苯酚和双酚A分别在0.012~1.0mg/L、0.03~2.5mg/L范围内线性良好,相关系数均达到0.9999,检出限分别为0.6mg/kg和1.5mg/kg,不同加标水平的回收率为90.5%~104.3%,其相对标准偏差为0.4%~3.8%。该方法操作简便,灵敏度高、重现性好,能有效提取和测定三类玩具中的苯酚和双酚A。
An analytical method of high performance liquid chromatography-fluorescence detection (HPLC-FL) has been established for the determination of phenol and bisphenol A in toys. The samples were extralted by ultrasonic extraction using methanol-water (65/35,V/V) as extractunt for 20 min. The average recoveries (n=10) were from 90.5% to 104.3% with relative standard deviations between 0.4%~3. 8%. The detecton limits of phenol and bisphenol A were 0. 6 mg/kg and 1. 5 mg/kg, respectivily. The method is simple, reproducible, sensitive, and can be used for the determination of phenol and bisphenol A in toys samples.
出处
《分析科学学报》
CAS
CSCD
北大核心
2009年第2期181-184,共4页
Journal of Analytical Science
基金
检验检疫行业标准立项项目(No.2007B267)
关键词
玩具
高效液相色谱
荧光检测器
苯酚
双酚A
Toys
High performance liquid chromatography
Fluorescence detection
Phenol
Bisphenol A