[Determination of 26 herbicide residues in soil, sediment, and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Zhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc +1 more source
结合放射性同位素测年,在对乌梁素海湖泊沉积物粒度的分析基础上,结合黄河以及河套地区相关文献资料,探讨乌梁素海在自然和人类活动共同作用下的演变过程.乌梁素海沉积物中黏土(<4 μm)平均含量28.7%、细粉砂(4~16 μm)平均含量34.4%、中粉砂(16~32μm)平均含量17.3%、粗粉砂(32~ 64 μm)组分平均含量14.1%、砂质组分(> 64 μm)含量整体较低,平均含量为5.5%.沉积物不同粒级范围颗粒含量的相关性分析表明,在1965年左右(岩芯深度20 em ...
吉力力.阿不都外力 +8 more
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[Determination of glufosinate, glyphosate and their metabolites in sediment by ultra-high performance liquid chromatography-tandem mass spectrometry with pass-through solid-phase extraction]. [PDF]
Yang X +5 more
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[Determination of three new herbicide residues in soil, sediment and water by liquid chromatography-tandem mass spectrometry]. [PDF]
He HM +7 more
europepmc +1 more source
[Bioactivity of multi-matrix bioceramic root canal sealer: An <i>in vitro</i> study]. [PDF]
Lyu W, Bai W, Wang X, Leung Y.
europepmc +1 more source
采用十二烷基苯磺酸钠(SDBS)协同中性蛋白酶水解排水管网沉积物,研究了沉积物中含量较高的重金属离子(Zn2+、Cu2+、Mn2+、Pb2+)对酶促水解过程的影响以及其转化规律。Zn2+和Cu2+在添加量小于原沉积物中金属离子浓度的3倍时促进酶解,大于3倍时促进作用减弱,并随着添加量的增加呈现抑制作用;而Mn2+与Pb2+对酶解的抑制作用具有较高的敏感性,添加量小于原沉积物中金属离子浓度的0.2倍时促进酶解,超过0.2倍时便会抑制酶解效果。经中性蛋白酶+SDBS水解后,沉积物中重金属由迁移性最高的F1 ...
李一兵 +5 more
doaj +2 more sources
[CEBPA promotes hepatic steatosis in metabolic dysfunction-associated fatty liver disease in mice <i>via</i> the SREBP-1c/FASN/ACC axis]. [PDF]
Zhang L +7 more
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[<i>Suanzaoren</i> Decoction inhibits neuroinflammation and alleviates hippocampal neuronal injury in APP/PS1 transgenic mice by regulating the Hippo-YAP pathway]. [PDF]
Niu Q +5 more
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通过吸附、释放实验研究了河流及湖泊沉积物酸挥发性硫化物对上覆水中重金属元素的影响 .采用兼具Langmuir及Freundlish等温线方程两种方程特征的Sips表达式及无机离子分级交换理论 ,较好地对重金属元素在沉积物或颗粒物上的吸附及释放特征进行了描述 .结果表明 ,存在于水溶液中的重金属可以不断地与沉积物结合 ,从而使水溶液中的重金属浓度维持在一很低的水平上 ;并且 ,一旦与沉积物结合 ,重金属就很难再释放出来 .酸挥发性硫化物的存在增加了沉积物的吸附容量 ,但酸挥发性硫化物经过酸化被除去后 ...
方涛,刘剑彤,张晓华,肖邦定,徐小清
core
[<i>Jiaotaiwan</i> improves lipid metabolism abnormalities in a mouse model of Alzheimer disease by regulating the AMPK signaling pathway]. [PDF]
Ruan Y, Cui C, Li J, Wang Y, Wang X.
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