Results 61 to 70 of about 141 (95)

[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]

Se Pu
Zhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
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[Matrix solid-phase dispersion extraction of organophosphorus flame retardants in soil based on response surface methodology]. [PDF]

Se Pu
Wang J, Xu S, Sun Y, Lei H, Cheng Y, Wang X, Zhang Z.   +6 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]

Se Pu
Yang X, Xie ZG, Li XL, Suo WW, Chen XY, Wan YW.   +5 more
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[Research on Healthy Neighborhood Evaluation System Based on the Combined Perspectives of Urban Planning and Public Health]. [PDF]

Feng Jing Yuan Lin, 2020
雨洋 张, 宁睿 刘, 瀛 龙, Yuyang Z, Ningrui L, Ying L.   +5 more
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<i>Acinetobacter</i> sp. ME1: a multifunctional bacterium for phytoremediation utilizing melanin production, heavy metal tolerance, and plant growth promotion. [PDF]

J Zhejiang Univ Sci B
Lee SY, Cho KS.
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[Development of precancerous lesions of oral mucous membrane diseases and oral cancer animal models]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi, 2020
Cheng JX, Bai HT, Chang ZN, Li J, Chen QM.   +4 more
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[Simultaneous determination of 10 phthalate metabolites in urine by ultra performance liquid chromatography -tandem mass spectrometry]. [PDF]

Se Pu
Zhao XY, Kang H, Wang YY, Li WH, Chen M, Ke C, Qin F, Kang XX.   +7 more
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[Determination of trace polychlorinated biphenyls in environmental water samples by solid-phase microextraction-gas chromatography-tandem mass spectrometry using carbon nanotube composite microspheres materials]. [PDF]

Se Pu
Song XL, Zhu SQ, Wu YX, Zhong LY, Liu YQ.   +4 more
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长期地膜覆盖及不同施肥处理对棕壤无机氮和氮素矿化率的影响

Shuitu Baochi Xuebao, 2006
长期地膜覆盖对土壤许多理化性质产生较大影响，但对无机氮和氮素矿化率的影响却鲜有报道。本文重点研究沈阳农业大学棕壤定位实验站（1987年开始）内长期地膜覆盖及不同施肥处理下土壤无机氮和氮素矿化率在整个生长季内的变化情况。结果表明，长期的地膜覆盖可以增加NO2^--N的积累，并抑制NO3^--N的迁移，但对NH4^＋—N的含量则影响不大；而且覆膜促进了土壤有机氮索的矿化，从而加速了NH4^＋-N和NO3^--N的释放进释．研究结果同时表明有机肥与无机肥配合施用比单一施用有机肥更能促进土壤的N素矿化。
doaj  

[Determination of 51 per- and polyfluoroalkyl substances in raw water and drinking water by online solid-phase extraction coupled with ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chen YY, Lyu J, Ye BX, Zhang L, Wang YY, Jin N.   +5 more
europepmc   +1 more source