昆明市售卫生纸中11种荧光增白剂监测结果分析  

Analysis of monitoring results of 11 fluorescent whitening agents in toilet tissue sold in Kunming

作　　者：宋卿[1] 杨婷 飞志欣 熊宏苑 SONG Qing;YANG Ting;FEI Zhi-Xin;XIONG Hong-Yuan(Yunnan Center for Disease Control and Prevention,Kunming 650022,China;Haiyuan College of Kunming Medical University^Kunming 650106,China)

机构地区：[1]云南省疾病预防控制中心,昆明650022 [2]昆明医科大学海源学院,昆明650106

出　　处：《食品安全质量检测学报》2019年第22期7586-7590,共5页Journal of Food Safety and Quality

摘　　要：目的为了解昆明市售卫生纸中11种荧光增白剂的添加情况方法样品采集自昆明市超市销售的60份不同品牌卫生纸,粉碎后经用40%乙腈-水超声提取3次,合并提取液,离心,上清液经正己烷脱脂。脱脂后的溶液用高效液相色谱法检测,外标法定量。结果本方法在17 m in内完成11种目标化合物的分离分析,线性关系良好,相关系数(/?2)均大于0.99。在低、中和高3个添加水平的回收率为84.2%~99.8%,相对标准偏差(relative standard deviations,RSDs)小于5.2。/。(《=6),方法定量限(limits of quantitation,LOQ)为2.4~3.8 m g/kg,各品牌卫生纸中,阳性样品检出率达到8.33%,含量最高达10.5 m g/kg。结论昆明市售卫生纸中存在添加荧光增白剂,部分样品中检测出多种荧光增白剂非法添加,相关部门应该予以重视,加强对市售卫生纸的监督管理。Objective To evaluate the addition o f 11 fluorescent whitening agents in toilet paper sold in Kunming.Methods The 60 different brands toilt tissues were collected from the market in Kunming. The crushed samples wereextracted by 40% acetonitrile-water for 3 times, combined with the extract and centrifugated. Then the supernatant wasdegreased by n-hexane. A fter degreasing, the solution was determined by high performance liquid chromatography. Theexternal standard method was used. Results The separation and analysis o f 11 target compounds were achieved within17 min, and the correlation coefficients (R2) were more than 0.99. The recoveries were ranged from 84.2% to 99.8% for11 kinds o f fluorescent whitening agents with 3 spiked levels o f low, m iddle and high concentrations. The relativestandard deviations (RSD s) were less than 5.2% («=6), and the limits o f quantitation (LO Q) for the 11 kinds offluorescent whitening agents were 2.4~3.8 mg/kg. The detection rate o f positive sam ples reached 8.33% and thehighest content was 10.5 mg/kg. Conclusion Fluorescent w hitening agents still exist in toilt tissues in Kunming,and a variety o f fluorescent w hitening agents illegally added in some sam ples are detected. The relevant supervisionshould pay more attention and strengthen the m onitoring o f toilt tissues.

关 键 词：卫生纸 荧光增白剂 高效液相色谱法 

分 类 号：R28[医药卫生—中药学]