| 用同位素稀释的气相色谱／高分辨质谱联用测定中国珠江流域鱼体中氯化二苯并二嗯英和氧化二苯并呋喃 |
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| 引用本文： | 张健清,周健,蒋友胜,江洁,庄志雄,刘晓明,吴勇宁.用同位素稀释的气相色谱／高分辨质谱联用测定中国珠江流域鱼体中氯化二苯并二嗯英和氧化二苯并呋喃[J].深圳特区科技,2005(11):130-135. |
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| 作者姓名： | 张健清 周健 蒋友胜 江洁 庄志雄 刘晓明 吴勇宁 |
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| 摘 要： | Objective：PCDD/Fs level in 22 fish samples was investigated in Pearl river Delta area in order that the PCDD/Fs pollution level in common fish can be evaluated. Methods： Dibenzo-p-Dioxins and Dibenzo-Furans was extracted from the sample by Soxhlet extraction, concentrated then purified by column chromatography, carbon column enrichment,. Confirmation and quantitative analysis at ppt（pg/g） level of PCDD/Fs was performed by HRGC/HRMS using multiple ion detection mode（MID）. Certified reference material using Proficiency test sample fish muscle test material 0613 that was obtained from Central Science Laboratory（CSL） in Britain. Results： The average of concentration in wet weight is 1.261 ng/kg,, the average total WHO-TEQ for 22 samples is 0.246ng/kg wet weight. Generally, OCDD, 2,3,7,8-TCDF, 1,2,3,4,6,7,8-HpCDD was the main contributors to the total 17 PCDD/Fs detected, average account for 21%,16%,14%, respectively. While 1,2,3,7,8-PeCDD, 2,3,4,7,8-PeCDF, 2,3,7,8-TCDD were main contributors to the total WHO-TEQ, account for 40%,27%, 13% respectively. The total TEQ for 22 fishes ranged from 0.03 ng/kg wet weight to 0.878 ng/kg wet weight. Conclusions： PCDD/Fs level was largely different from sample to sample depending on the sample kinds. The level in the Pearl river Delta area fish samples is not distinct comparing with other countries, but some kind fish level should be paid more attention on it since its higher level. The relationship between source of PCDD/Fs and PCDD/Fs level in fish will be studied deeply in the future.
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| 关 键 词： | 同位素 气相色谱／高分辨质谱联用 含量测定 中国 珠江流域 鱼体 氯化二苯并二嗯英 氧化二苯并呋喃 |
Polychlorinated Dibenzo-p-Dioxins and Dibenzo-Furans level in the common Fishes in Pearl River Delta in China by Isotope Dilution HRGC/HRMS |
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| Authors: | ZhangJianqing ZhouJian JiangYousheng JiangJie ZhuangZhixiong LiuXiaoming WuYongning |
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