色谱
色譜
색보
CHINESE JOURNAL OF CHROMATOGRAPHY
2014年
8期
843-848
,共6页
加速溶剂萃取%气相色谱-质谱%酚类化合物%土壤%底泥%化学工业园
加速溶劑萃取%氣相色譜-質譜%酚類化閤物%土壤%底泥%化學工業園
가속용제췌취%기상색보-질보%분류화합물%토양%저니%화학공업완
accelerated solvent extraction( ASE)%gas chromatography-mass spectrometry (GC-MS)%phenolic compounds%soil%sediment%chemical industrial park
建立了同时测定土壤（底泥）样品中12种酚类化合物的检测方法。采用加速溶剂萃取（ ASE）与凝胶渗透色谱（GPC）协同净化进行前处理，气相色谱和质谱联用技术（ GC-MS）进行定性定量分析。方法检出限为0.410~13.1μg / kg（干重），回收率在70.7％~122％之间，相对标准偏差（ RSD）为1.2％~16％。基于上述分析方法研究了长江沿岸某化工园区土壤及长江底泥中12种酚类化合物的污染水平。17个土壤样品和7个底泥样品中除对苯二酚外的11种酚类化合物均有检出。土壤和底泥中酚类污染物总含量范围分别为10.16~30.66 mg / kg 和18.00~29.83 mg / kg，平均含量分别为18.26 mg / kg 和22.51 mg / kg。土壤和底泥中最主要的酚类污染物为4-硝基苯酚和4-氯-3-甲酚，其次为邻氯对苯二酚、4，6-二硝基邻甲基苯酚和2，4，6-三氯酚。该化工园区周边土壤及长江底泥中12种酚类污染物污染水平较低、环境风险较小。
建立瞭同時測定土壤（底泥）樣品中12種酚類化閤物的檢測方法。採用加速溶劑萃取（ ASE）與凝膠滲透色譜（GPC）協同淨化進行前處理，氣相色譜和質譜聯用技術（ GC-MS）進行定性定量分析。方法檢齣限為0.410~13.1μg / kg（榦重），迴收率在70.7％~122％之間，相對標準偏差（ RSD）為1.2％~16％。基于上述分析方法研究瞭長江沿岸某化工園區土壤及長江底泥中12種酚類化閤物的汙染水平。17箇土壤樣品和7箇底泥樣品中除對苯二酚外的11種酚類化閤物均有檢齣。土壤和底泥中酚類汙染物總含量範圍分彆為10.16~30.66 mg / kg 和18.00~29.83 mg / kg，平均含量分彆為18.26 mg / kg 和22.51 mg / kg。土壤和底泥中最主要的酚類汙染物為4-硝基苯酚和4-氯-3-甲酚，其次為鄰氯對苯二酚、4，6-二硝基鄰甲基苯酚和2，4，6-三氯酚。該化工園區週邊土壤及長江底泥中12種酚類汙染物汙染水平較低、環境風險較小。
건립료동시측정토양（저니）양품중12충분류화합물적검측방법。채용가속용제췌취（ ASE）여응효삼투색보（GPC）협동정화진행전처리，기상색보화질보련용기술（ GC-MS）진행정성정량분석。방법검출한위0.410~13.1μg / kg（간중），회수솔재70.7％~122％지간，상대표준편차（ RSD）위1.2％~16％。기우상술분석방법연구료장강연안모화공완구토양급장강저니중12충분류화합물적오염수평。17개토양양품화7개저니양품중제대분이분외적11충분류화합물균유검출。토양화저니중분류오염물총함량범위분별위10.16~30.66 mg / kg 화18.00~29.83 mg / kg，평균함량분별위18.26 mg / kg 화22.51 mg / kg。토양화저니중최주요적분류오염물위4-초기분분화4-록-3-갑분，기차위린록대분이분、4，6-이초기린갑기분분화2，4，6-삼록분。해화공완구주변토양급장강저니중12충분류오염물오염수평교저、배경풍험교소。
A determination method of 12 phenolic compounds in soil and sediment samples by gas chromatography-mass spectrometry( GC-MS ) analysis coupled with accelerated solvent extraction(ASE)and gel permeation chromatography(GPC)for clean-up was developed. The method detection limits(MDLs)varied from 0. 410 μg / kg to 13. 1 μg / kg(dry weight),and the average recoveries ranged from 70. 7% to 122% with the relative standard deviations(RSDs)of 1. 2% to 16% . Based on this method,the levels of 12 phenolic compounds were investigated in 17 soil surrounding a chemical industrial park along the Yangtze River and seven sediment sam-ples collected in the river. It was found that 11 of the 12 phenolic compounds were detected in all of the 24 samples,and only hydroquinone was below the MDL. The contents of the total 12 phenolic compounds were 10. 16-30. 66 mg / kg in the soil and 18. 00-29. 83 mg / kg in the sedi-ment,with the average contents of 18. 26 and 22. 51 mg / kg respectively. It showed that 4-nitro-phenol,4-chloro-3-methylphenol,2-chlorohydroquinone,2-methyl-4,6-dinitrophenol and 2,4,6-trichlorophenol were five major phenolic contaminants in the soil and sediment in this study. The pollution levels of the 12 phenolic compounds were low in the soil of the chemical industri-al park as well as in the sediment of the Yangtze River,which implied a comparatively low risk for the environment.
