[Determination of 13 prohibited alkaloids in essential oil-based cosmetics by ultra performance liquid chromatography-tandem mass spectrometry combining QuEChERS purification]. [PDF]
Liu Z +6 more
europepmc +1 more source
北京燕山地区的水系——周口店河、东沙河、丁家洼河、西沙河、大石河中游受到石油废水和生活污水的影响。作者在5条河流同步采用载玻片法、PFU(Polyurethane Foam Unit)法和传统的浮游生物沉淀法收集原生动物群落。对群落的种类组成、多样性指数、群集过程(S_(eq)、G、T_(90%))等参数进行了测定。3种方法都能监测出周口店河有严重的毒性效应,载玻片法和PFU法能监测出含石油的废水在东沙河逐渐净化的过程,PFU法能最终判断出西沙河的有机污染比丁家洼河大 ...
沈韫芬, 白庆笙, 顾曼如
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[Determination of 31 perfluoroalkyl and polyfluoroalkyl substances in water by ultra performance liquid chromatography-triple quadrupole mass spectrometry combined with direct injection]. [PDF]
Yang C +6 more
europepmc +1 more source
本文采用自制的聚硅氧烷负载氮杂18冠6(PUAC-18-C-6)和OV-101弹性石英毛细管柱对东湖水及排污口废水进行了分析,分离出78个有机化合物,并对其中的石油烃(C_9—C_(28))和有机氯农药六六六进行了定量测定。分析结果表明,东湖的污染程度受水的流向 ...
吴采樱,程劲松,马振雄,陈旭东,李植生
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[<i>In vitro</i> culture, expansion, and biological characterization of mesenchymal stem cells derived from neonatal rat liver]. [PDF]
Chi M, Li B, Wu J, Ge J, Tang Y.
europepmc +1 more source
[Determination of atmospheric intermediate volatility organic compounds with thermal desorption-flow modulator comprehensive two-dimensional gas chromatography- time-of-flight mass spectrometry]. [PDF]
Wang R, Li YJ, Wang JH, Ma CW, Jiang JK.
europepmc +1 more source
这里介绍两则石油污染生物治理的现场实例。一则是关于水处理厂的生物治理,强调了即使在环境因素不十分有利的条件下,采用微生物生态法的生物强化措施,就能经济有效地降低污染物的浓度;另一则展示地下水和土壤的生物治理,并详述了生物治理的原理、可行性、扩大试验法、监测项目的确定、试验前后总多环芳烃(PAH)及五氯苯酚(PCP)等的浓度变化等。两则微生物生态法的生物治理均表明:此法既省去了实验室研究,又不需事先查明所用的微生物属性,即可大大加快可行性研究速度,还明显地提高了防治效果。微生物生态法成功的运用进一步说明了:
郑远扬, 王绍玲, 熊运实, 向兰
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[Assessment on data processing methods for nontarget identification of per- and polyfluoroalkyl substances using liquid chromatography-high-resolution mass spectrometry]. [PDF]
Zhang BX +5 more
europepmc +1 more source
通过实验室选择性富集培养,从大庆石油污染土壤中获得了能以大庆原油为碳源快速生长的石油降解菌。采用该降解菌对原油污染土壤进行了原位生物联合修复实验。接入降解菌的处理单元分别种植大豆、碱草或加入蓬松剂,与空白试样作对比。各处理单元石油污染土壤中石油烃含量初始值为2 228.25m g/kg(以1kg干土计)。经过135d的生物联合修复,石油烃降解率达63.65%~83.26%
葛绍荣 +5 more
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[Simultaneous determination of 38 indazole amides synthetic cannabinoids and 15 metabolites in wastewater by solid phase extraction-liquid chromatography-tandem mass spectrometry]. [PDF]
Yang Z, Jiang LW, Wu YD, Jia R, Lyu JX.
europepmc +1 more source

