期刊
FOOD ANALYTICAL METHODS
卷 6, 期 6, 页码 1537-1543出版社
SPRINGER
DOI: 10.1007/s12161-013-9567-y
关键词
Ion chromatography; Bisphenol A; Constant potential detection; Solid phase extraction; Graphene; Dairy products
资金
- National Natural Science Fundation of China [20975056, 21275082, 81102411]
- Natural Science Fundation of Shandong [ZR2011BZ004, ZR2011BQ005]
- JSPS
- NSFC [21111140014]
- National Key Basic Research Development Program of China (973 special preliminary study plan) [2012CB722705]
A novel and reliable ion chromatography (IC) method using graphene (G) as a solid phase extraction (SPE) adsorbent for the rapid analysis of bisphenol A (BPA) in dairy products was developed. The performances of graphene (G) and commercial C18 for BPA extraction from dairy samples were evaluated; results showed that G had higher adsorption efficiency. IC coupled with an electrochemical detector (ED) is eco-friendly, labor and time saving compared to liquid chromatography mass spectrometry (LC-MS) and gas chromatography mass spectrometry (GC-MS). The effects of the experimental parameters of the IC-ED system were assessed, and the parameters were optimized to provide maximum sensitivity. The linear range is 5-20,000 ng mL(-1) with an R value of 0.999. The limit of the detection is 0.8 ng mL(-1) for a 25-mu L injection loop. The mean relative recoveries ranged between 83.3 % and 104.6 %, the corresponding inter-day precision was below 5.3 % for 20, 200, 2,000, and 15,000 ng mL(-1). This method was successfully employed to analyze BPA in dairy samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据