[Determination of 15 carbonyl compounds in soil using improved solid phase extraction-high performance liquid chromatography]. [PDF]
Se Pu, 2023 Xue KP +7 more
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Shuitu Baochi Xuebao, 2016 通过野外采样和室内分析相结合的方法，研究了紫色丘陵区不同土地利用方式下的土壤剖面微团聚体组成及分形特征。结果表明：林地、花椒地、旱地、水田和柑橘园土壤微团聚体组成以0.25～0.05 mm粒级为优势粒级，0.05～0.01 mm次之，占18.80%～35.57%，＜0.001 mm粒级含量最少，为0.33%～2.57%；0—20 cm土层土壤微团聚体年均重量比表面积（MWSSA）表现为林地（161.04 cm2/g）＞柑橘园（134.49 cm2/g）＞花椒地（117.31 cm2/g）＞水田（100 ...
代文才 +4 more
doaj
[Chemical diversity of dissolved organic matter revealed by ultra performance liquid chromatography-Fourier transform ion cyclotron resonance mass spectrometry]. [PDF]
Se Pu, 2023 Ma C, Ni HX, Qi YL.
europepmc +1 more source
Shuitu Baochi Xuebao, 2019 为研究生物炭对豫西丘陵地区农田土壤团聚体分布、稳定性及其碳、氮在团聚体中分布的影响，进一步探明生物炭对丘陵区农田土壤结构和养分的长期作用效果。采用田间长期定位试验，生物炭用量为0（C0），20（C20），40（C40）t/hm2 3个处理，研究生物炭施用5年后对土壤团聚体组成及稳定性的影响，探究土壤团聚体中有机碳和全氮分布特性。结果表明：施加20，40 t/hm2生物炭可提高0-20，20-40 cm土层的机械性 > 0.5 mm以上粒级和水稳性 > 0.053 mm以上粒级团聚体含量。在0-20 ...
悦飞雪 +7 more
doaj
黑龙滩水库消落带植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响
Shuitu Baochi Xuebao[目的] 为阐明水库消落带不同植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响。[方法] 以川中丘陵区黑龙滩水库消落带人工恢复与自然恢复植被下的土壤为研究对象,利用湿筛法测定分析土壤水稳性团聚体组成特征及其稳定性指标。[结果] 消落带土壤＞0.25 mm水稳性大团聚体含量与未淹水对照相比降低4.21%,其中,自然恢复植被下土壤水稳性大团聚体含量较对照下降12.27%,人工恢复植被下大团聚体含量较对照增加3.84%;不同植被恢复模式下土壤水稳性团聚体组成差异显著(p＜0.05 ...
白芹菲 +5 more
doaj
[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 PuZhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc +1 more source
[Recalling the history of the prevention and treatment during the epidemics of four infectious diseases, including botulism in Xinjiang]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2023 Zhao FX, Lu XB, Fu WH, Dilixiati-Yakepu.
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[Preface for Special Issue on Advanced Molecular Imprinting Technology and its Cutting-Edge Applications]. [PDF]
Se PuJia Q, Yang KG.
europepmc +1 more source
[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]
Se PuYan J +8 more
europepmc +1 more source
[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]
Se Pu, 2023 Liu M +7 more
europepmc +1 more source