[Determination of atmospheric intermediate volatility organic compounds with thermal desorption-flow modulator comprehensive two-dimensional gas chromatography- time-of-flight mass spectrometry]. [PDF]
Se PuWang R, Li YJ, Wang JH, Ma CW, Jiang JK.
europepmc +1 more source
Changes of Nitrogen Storage in Soil under Different Land Uses in the Sanjiang Plain
, 2008 通过分析三江平原不同土地利用方式下土壤氮含量及储量的变化，揭示土壤氮库的演变特征。结果表明，湿地土壤的全氮含量及储量明显高于农田、火烧地和弃耕地土壤。开垦导致土壤全氮含量及储量下降，且随耕种年限增加符合一阶指数衰减模型（P〈0．01）；连续火烧5a导致土壤全氮含量及储量显著降低，而弃耕7a导致其值有所增加，但增加量较小，说明土壤氮库耗竭易、恢复难；土壤全氮与有机质之间呈显著正相关（P〈0.01），说明湿地开垦后土壤有机质含量降低是引起土壤氮肥力下降的主要因素 ...
孙志高, 李新华
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[Determination of 17 bisphenol compounds in human urine by solid supported liquid-liquid extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuJin Y +6 more
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[Determination of sixteen antibiotics and four β-agonists in human urine samples using ultra-performance liquid chromatography-tandem mass spectrometry based on high-throughput automatic solid-phase extraction]. [PDF]
Se Pu, 2023 Li ZH, Hu XJ, Lu YF, Xie LN, Zhu Y.
europepmc +1 more source
[Serum levels of polycyclic aromatic hydrocarbons and health risk assessment among children and adolescents]. [PDF]
Se PuWang LP +7 more
europepmc +1 more source
[Progress in preparation of plant biomass-derived biochar and application in pesticide residues field]. [PDF]
Se Pu, 2022 Zhang X, Zhen D, Liu F, Peng Q, Wang Z.
europepmc +1 more source
[Determination of 26 perfluorinated and polyfluoroalkyl compounds in human serum by solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuYue YX +9 more
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Shuitu Baochi Xuebao, 2006 通过实地调查、土壤采样分析和数理统计结合的方法，对川中丘陵区5种土地利用方式（水田、旱地、菜地、林地和荒草地）的土壤养分状况进行对比分析，结果表明．土地利用方式对土壤有机质、全氮、全钾、全磷、碱解氮、速效钾和速效磷含量的影响达极显著（或显著）水平；在5种土地利用方式中．土壤有机质和全氮含量由高到低的顺序为：水田〉林地〉菜地〉旱地〉荒草地；土壤全钾和速效钾含量由高到低的顺序为：水田〉菜地〉旱地〉林地〉荒草地；土壤全磷含量由高到低的顺序为：菜地〉旱地〉林地〉水田〉荒草地。
doaj
[Simultaneous determination of six nitroaromatic compounds and three anions in environmental matrices using a liquid chromatography-ion chromatography coupled system]. [PDF]
Se PuLei J, Zheng H, Liu L, Li W.
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[Determination of 10 carbamate pesticide residues in liquid milk by ultra performance liquid chromatography-tandem mass spectrometry with pass-through solid-phase extraction purification]. [PDF]
Se Pu, 2023 Yue C +6 more
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