| 周明莹,曲克明,冷凯良,夏斌,乔向英,邢丽红,邵会.沉积物中多溴联苯醚快速测定技术.渔业科学进展,2014,35(2):124-128 |
| 沉积物中多溴联苯醚快速测定技术 |
| Rapid determination of polybrominated diphenyl ethers in sediment |
| 投稿时间：2013-06-06 修订日期：2014-04-20 |
| DOI：10.11758/yykxjz.20140218 |
| 中文关键词: 沉积物 十溴联苯醚 溴离子选择电极 快速测定 |
| 英文关键词: Sediment Polybrominated diphenyl ethers Bromide ion selective electrode Rapid determination |
| 基金项目:“十二五”国家科技支撑计划（2012BAD29B06） |
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| 中文摘要: |
| 建立了沉积物中多溴联苯醚快速测定方法。沉积物样品采用正己烷-丙酮混合溶剂超声提取，提取液经减压浓缩后，在充满氧气的燃烧瓶中燃烧，使多溴联苯醚分解成溴离子，采用溴离子选择电极测定。结果表明，沉积物中十溴联苯醚在加标浓度为100-5000 μg/kg时，方法回收率为70.27％-97.49％，相对标准偏差RSD<15%，方法定量限为100 μg/kg。 |
| 英文摘要: |
| A method was established for determining the polybrominated diphenyl ethers (PBDEs) in sediment. The sediment samples were subjected to ultrasonic extraction using n-hexane/acetone as solvent. The extract was concentrated and combusted in the combustion flask which was filled with oxygen. Polybrominated diphenyl ethers were decomposed into bromine ion which was then determined by bromide ion selective electrode. The result showed that, when the addition level was 100 μg/kg, 1000 μg/kg and 5000 μg/kg, the recovery was in the range of 70.27%-97.49%, and the relative standard deviation(RSD) was less than 15%. The quantification limit of the method was 100 μg/kg. |
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