中国环境监测
中國環境鑑測
중국배경감측
Environmental Monitoring in China
2015年
5期
109-114
,共6页
王伟%房丽萍%吴忠祥%田文
王偉%房麗萍%吳忠祥%田文
왕위%방려평%오충상%전문
沉积物%多环芳烃%标准样品%制备技术
沉積物%多環芳烴%標準樣品%製備技術
침적물%다배방경%표준양품%제비기술
sediments%Polycyclic Aromatic Hydrocarbons%reference materials%preparative technique
环境标准样品是监测过程中重要的质量控制手段,中国受天然基体标准样品制备技术的制约,尚未拥有自己的沉积物中多环芳烃标准样品。为制备符合中国重点流域沉积物类型及多环芳烃浓度水平的沉积物标准样品,对中国6个重点流域的沉积物进行了采样,获得了制备多环芳烃标准样品的原料。分析常温及冷冻2种干燥方式对多环芳烃的影响,为制备大批量多环芳烃标准样品提供数据支持。对11个点位样品采用气相色谱质谱法测定16种优控多环芳烃化合物浓度,结果表明,样品均匀性良好,样品中多环芳烃检出率在99%以上,江河沉积物样品中多环芳烃浓度区间为664~2.91×103μg/kg,湖泊样品最高值达到1.25×105μg/kg,其主要污染源是化学燃料的燃烧。为中国制备水系沉积物中多环芳烃标准样品积累了技术基础。
環境標準樣品是鑑測過程中重要的質量控製手段,中國受天然基體標準樣品製備技術的製約,尚未擁有自己的沉積物中多環芳烴標準樣品。為製備符閤中國重點流域沉積物類型及多環芳烴濃度水平的沉積物標準樣品,對中國6箇重點流域的沉積物進行瞭採樣,穫得瞭製備多環芳烴標準樣品的原料。分析常溫及冷凍2種榦燥方式對多環芳烴的影響,為製備大批量多環芳烴標準樣品提供數據支持。對11箇點位樣品採用氣相色譜質譜法測定16種優控多環芳烴化閤物濃度,結果錶明,樣品均勻性良好,樣品中多環芳烴檢齣率在99%以上,江河沉積物樣品中多環芳烴濃度區間為664~2.91×103μg/kg,湖泊樣品最高值達到1.25×105μg/kg,其主要汙染源是化學燃料的燃燒。為中國製備水繫沉積物中多環芳烴標準樣品積纍瞭技術基礎。
배경표준양품시감측과정중중요적질량공제수단,중국수천연기체표준양품제비기술적제약,상미옹유자기적침적물중다배방경표준양품。위제비부합중국중점류역침적물류형급다배방경농도수평적침적물표준양품,대중국6개중점류역적침적물진행료채양,획득료제비다배방경표준양품적원료。분석상온급냉동2충간조방식대다배방경적영향,위제비대비량다배방경표준양품제공수거지지。대11개점위양품채용기상색보질보법측정16충우공다배방경화합물농도,결과표명,양품균균성량호,양품중다배방경검출솔재99%이상,강하침적물양품중다배방경농도구간위664~2.91×103μg/kg,호박양품최고치체도1.25×105μg/kg,기주요오염원시화학연료적연소。위중국제비수계침적물중다배방경표준양품적루료기술기출。
Environmental Reference Material is an important approach in the environmental monitoring quality control. China has not yet owned the reference materials of Polycyclic Aromatic Hydrocarbons ( PAHs) in sediments in according to the situation of the main rivers. Eleven local points from these six main rivers were chosen to analyze the samples by GC-MSD method and obtain the original materials in the nature. Throughout the consideration of the effect compare with the room temperature and cooled dry ways,the results show the room temperature dry way has few affected to the compound in the samples. The results show the samples are homogeneous and the compounds detected rates up to 95%,the total concentration of the samples in the river varied from 664-2. 91 × 103 μg/kg dry weight,the highest up to 1. 25 × 105 μg/kg in the lake samples. The main source of the PAHs is burning from fossil fuel. That is a good foundation for the development reference materials of PAHs in sediment.