Results 61 to 70 of about 3,625 (109)

[Research progress on the pathogenesis and clinical treatment of cirrhotic cardiomyopathy]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Wang KY, Liu L.
europepmc   +1 more source

[Magnetic fluorinated covalent triazine frameworks for efficient extraction of perfluorinated compounds]. [PDF]

Se Pu
Zhang WM, Liu GC, Fang M, Guo JL, Zhang L.   +4 more
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[Determination of 65 synthetic cannabinoids in whole blood by QuEChERS-ultra performance liquid chromatography- mass spectrometry]. [PDF]

Se Pu
Xi Z, Ye Y, Li SP, Kang J, Liu WQ, Zhang J, Li DX.   +6 more
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[Determination of 35 pyrrolizidine alkaloids in dried tea by ultra-high performance liquid chromatography- triple quadrupole mass spectrometry]. [PDF]

Se Pu
Dong L, Zhang XL, Yang C, Zhao JY, Wang XM, Chu YQ, Li XH.   +6 more
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[Determination of perfluorinated compounds， antibiotics and pesticides in drinking water by automated solid phase extraction with ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Liang J, Feng J, Zeng D, Zhou L, Zhong X, Li Y, Chen D.   +6 more
europepmc   +1 more source

[Integrated pharmaceutical innovation experiment： preparation of molecularly imprinted polymers and the application in sample pretreatment for in vivo drug analysis]. [PDF]

Se Pu
Jiang Y, Guo R, Song Z, Liu Z, Fan Y, Xu H.   +5 more
europepmc   +1 more source

[Functional characterization of double-negative T cells isolated from leukoreduction filter residues]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Xiang Z, Wu Y, Huang K, Wu F, Lin J, Sang L, Yang L.   +6 more
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秦岭水源地生态恢复下土壤全氮分布对侵蚀的响应

Shuitu Baochi Xuebao
目的为了解秦岭水源地土壤结构及土壤氮变化对生态恢复的响应。方法基于秦岭水源地闵家河小流域不同土地利用的土壤样品数据，定量分析生态恢复下流域土壤侵蚀及全氮损失量，探究生态恢复对土壤团聚体组成、稳定性及全氮分布的影响。结果1）流域土壤侵蚀以微度侵蚀为主，发生轻度和中度侵蚀的区域占比仅为6.76%。农地土壤侵蚀模数和单位面积土壤全氮损失显著高于林地和草地，56.46%的土壤侵蚀和45.11%的土壤全氮损失源自农地且主要分布在流域中、下游区域。2）生态恢复显著提高土壤团聚体稳定性和大团聚体质量分数。与农地相比较，
徐明珠, 徐国策, 李占斌, 张家欣, 王斌, 方康, 万顺, 陈新, 谷丰佑   +8 more
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[Determination of 40 carbonyl compounds in ambient air by high performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Li GH, Deng S, Li QQ, Zhang CL, Liu YF, Jiang B, Yao Q, Wang H, Wang BG.   +8 more
europepmc   +1 more source

保护性耕作对坡耕地土壤微生物量碳、氮的影响

Shuitu Baochi Xuebao, 2007
利用长期定位试验(1999年开始保护性耕作,2004年采样测定),研究了豫西旱区坡耕地不同保护耕作对土壤有机碳、全氮和微生物量碳(SMB-C)、微生物量氮(SMB-N)的影响.结果表明:深松覆盖和免耕覆盖耕层有机碳、全氮较传统耕作均有增加,其中深松覆盖耕作下有机碳含量最高,为6.79 g/kg,比传统耕作增加了13.82%;免耕土壤全氮含量最高为0.797 g/kg,比传统耕作增加了10.42%;土壤有机碳、全氮随着土层的加深逐渐降低;长期保护性耕作(免耕、深松)显著增加了土壤微生物碳、氮含量,0～20
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