Results 121 to 130 of about 1,584 (157)

[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]

Se Pu
Yan J, Huang J, Peng S, Man M, Sun D, Liu P, Chen L, Li J, Fan H.   +8 more
europepmc   +1 more source

[Determination of 15 halogenated polycyclic aromatic hydrocarbons in aquatic products by stable isotope dilution coupled with gas chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu, 2023
Li XY, Zhao F, Ping H, Ma ZH, Li BR, Ma TJ, Li C.   +6 more
europepmc   +1 more source

[Simultaneous determination of six nitroaromatic compounds and three anions in environmental matrices using a liquid chromatography-ion chromatography coupled system]. [PDF]

Se Pu
Lei J, Zheng H, Liu L, Li W.
europepmc   +1 more source

[Research progress in material preparation and application of magnetism-enhanced in-tube solid-phase microextraction]. [PDF]

Se Pu
Luo YN, Chen J, Hu YY, Gao SJ, Wang YL, Liu YM, Feng JJ, Sun M.   +7 more
europepmc   +1 more source

长期不同施肥制度对农田黑土有机质和氮素的影响

Shuitu Baochi Xuebao, 2005
以黑龙江省海伦黑土地区的农田长期（1985～2003年）定位试验土样为材料，对不同施肥处理土壤有机质含量、土壤全氮进行了系统研究。结果表明，长期无肥处理土壤有机质含量、全氮含量最低；长期施用氮肥、氮磷肥、有机肥处理土壤有机质含量、全氮含量居中；有机肥与化肥配合施用比无肥处理可显著提高有机质水平，增加土壤全氮含量。各处理C／N比值在9．91～13．10之间变动。
doaj  

[Toxicity of lunar dust simulant exposure via the digestive system: Microbiota dysbiosis and multi-organ injury]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Chen Y, Liu Y, He S, Gong X, Cheng Q, Chen Y, Hu X, Wang Z, Xie H.   +8 more
europepmc   +1 more source

[Progress in sample pretreatment and detection methods of hexabromocyclododecanes]. [PDF]

Se Pu, 2022
Cheng J, Ma J, Li S, Tian Y.
europepmc   +1 more source

[Determination of four fungicides in water by magnetic solid phase extraction-ultrahigh performance liquid chromatography-tandem mass spectrometry using covalent organic framework material]. [PDF]

Se Pu, 2022
Wang P, Ma J, Li S, Cheng J, Zou Z.
europepmc   +1 more source

[Determination of bisphenols in sediment by accelerated solvent extraction and solid-phase extraction purification coupled with ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2023
Wang QX, Feng QY, Zhu XQ.
europepmc   +1 more source

[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