Automatic Flow-Batch System for Cold Vapor Atomic Absorption Spectroscopy Determination of Mercury in Honey from Argentina Using Online Sample Treatment

被引：35

作者：

Dominguez, Marina A. ^{[1
]}

Gruenhut, Marcos ^{[1
]}

Pistonesi, Marcelo F. ^{[1
]}

Di Nezio, Maria S. ^{[1
]}

Centurion, Maria E. ^{[1
]}

机构：

[1] Univ Nacl Sur, Dept Chem, INQUISUR UNS CONICET, RA-8000 Bahia Blanca, Buenos Aires, Argentina

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2012年 / 60卷 / 19期

关键词：

flow-batch; automatization; honey; mercury; BOX-BEHNKEN DESIGN; ANALYZER; OPTIMIZATION; METHODOLOGY; TISSUES; DRUGS; FISH;

D O I：

10.1021/jf300637b

中图分类号：

S [农业科学];

学科分类号：

082806 [农业信息与电气工程];

摘要：

An automatic flow-batch system that includes two borosilicate glass chambers to perform sample digestion and cold vapor atomic absorption spectroscopy determination of mercury in honey samples was designed. The sample digestion was performed by using a low-cost halogen lamp to obtain the optimum temperature. Optimization of the digestion procedure was done using a Box-Behnken experimental design. A linear response was observed from 2.30 to 11.20 mu g Hg L-1. The relative standard deviation was 3.20% (n = 11, 6.81 mu g Hg L-1), the sample throughput was 4 sample h(-1), and the detection limit was 0.68 mu g Hg L-1. The obtained results with the flow-batch method are in good agreement with those obtained with the reference method. The flow-batch system is simple, allows the use of both chambers simultaneously, is seen as a promising methodology for achieving green chemistry goals, and is a good proposal to improving the quality control of honey.

引用

页码：4812 / 4817

页数：6

共 31 条

[1]

Bioprocess Development for Production of Alkaline Protease by Bacillus pseudofirmus Mn6 Through Statistical Experimental Designs [J].