Results 71 to 80 of about 7,596 (127)

大气污染物与绝缘子积污关系研究

Dianci bileiqi
大气污染物是绝缘子表面污秽的直接来源，大气污染物浓度是影响绝缘子表面积污状况的最重要参数，研究揭示大气污染物与绝缘子污秽度的量化关系，对建立污秽预测模型，对实现绝缘子污闪风险的非接触评估具有重要意义。为此，本文搭建实验平台，对比研究了气体污染物、大气污染物中可溶盐浓度两个参数与绝缘子表面污秽度的关联关系。研究结果表明，由于SO2、NOx等气态污染物的在大气中盐化过程复杂，气体污染物的浓度和绝缘子表面污秽中对应的可溶盐离子缺乏直接的对应关系；大气中悬浮颗粒物中的可溶盐是绝缘子表面污秽中可溶盐的直接来源 ...
赵建坤, 车传强, 燕宝峰, 陈波, 李亮, 曹彬, 王黎明   +6 more
doaj  

[Determination of four classes of 34 chlorinated persistent organic pollutants in seawater by solid-phase extraction and gas chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]

Se Pu
Gao MH, Li XY, Gao Y, Zhang HJ, Chen JP.
europepmc   +1 more source

[Application advances of mass spectrometry imaging technology in environmental pollutants analysis and their toxicity research]. [PDF]

Se Pu
Li F, Luo Q.
europepmc   +1 more source

[Contamination levels of perfluorinated and polyfluoroalkyl compounds in breast milk and assessment of their exposure risk to infants]. [PDF]

Se Pu
Chen HC, Cao WC, Liu XF, Liu X, Cheng QY, Zhou Y, Wen S.   +6 more
europepmc   +1 more source

[Effect of Using Hydrogen Peroxide for Periodic Disinfection Combined With Continuous Disinfection to Control Contamination in Dental Unit Waterline]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Chang J, Dang Y, Wang C, Li X.
europepmc   +1 more source

[Determination of 12 halogenated organic pollutants in edible fish by ultra performance liquid chromatography-high resolution mass spectrometry combined with ultrasound-assisted extraction and gel permeation chromatography purification]. [PDF]

Se Pu
Zhu YZ, Zheng RF, Fan ZH, Liu L, Ye JY, Wang K, Tang CM.   +6 more
europepmc   +1 more source

[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

[Revolution teaching practice in sample pretreatment supported by large-scale instrument： a case study of magnetic covalent organic framework enriching organic ultraviolet filters in seawater]. [PDF]

Se Pu
Li S, Zhu YL, Ren Z, Gao DD, Gu HL, Lao JL.   +5 more
europepmc   +1 more source

[Apply the Miettinen Formula to Assess the Health Benefits of the PM_2.5 Simulation Intervention on Metabolic Syndrome]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Chen K, Han X, Yang Y, Wang P.
europepmc   +1 more source

[Open-ended experiment： microextraction and smartphone-assisted colorimetric quantification of sulfur dioxide]. [PDF]

Se Pu
Zhang L, Liu C, Zhu J, Zhang J, Shen W, Tang S.   +5 more
europepmc   +1 more source