Specific determination of bromate in bread by ion chromatography with ICP-MS
| Autor: | Hiroki Kubota, Takumi Akiyama, Megumi Hamano Nagaoka, Yoko Kawasaki, Takeshi Yamazaki, Yukiko Date, Tamio Maitani, Michiko Yamanaka, Chikako Yomota |
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| Rok vydání: | 2003 |
| Předmět: |
Detection limit
Chromatography Bromates digestive oral and skin physiology Ion chromatography Ultrafiltration food and beverages General Medicine Bread Bromate Mass spectrometry Chromatography Ion Exchange Sensitivity and Specificity Defatting Mass Spectrometry Cartridge chemistry.chemical_compound chemistry Inductively coupled plasma mass spectrometry |
| Zdroj: | Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan. 43(6) |
| ISSN: | 0015-6426 |
| Popis: | A sensitive method for detecting bromate in bread by ion chromatography with inductively-coupled plasma mass spectrometry (IC/ICP-MS) was developed. Bromate was extracted from bread with water. The clean-up procedure included a 0.2 micron filter, a C18 cartridge for defatting, a silver cartridge to remove halogen anions, a centrifugal ultrafiltration unit to remove proteins, and a cation-exchange cartridge to remove silver ions. A 500 microL sample solution was applied to IC/ICP-MS. The detection limit and the quantitation limit of bromate in the solution were 0.3 ng/mL and 1.0 ng/mL, expressed as HBrO3, respectively, which corresponded to 2 ng/g and 5 ng/g, respectively, in bread. Recovery of bromate was about 90%, and the CV was about 2%. Based on the detection limit in solution and recovery from bread, the detection limit of bromate in bread was estimated to be 2 ng/g. |
| Databáze: | OpenAIRE |
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