[Determination of 13 prohibited alkaloids in essential oil-based cosmetics by ultra performance liquid chromatography-tandem mass spectrometry combining QuEChERS purification]. [PDF]
Se PuLiu Z +6 more
europepmc +1 more source
, 2009 天然气净化厂废水水质、水量波动大且含有大量难降解物质,难以稳定达标。采用水解酸化—好氧工艺处理天然气净化厂废水,出水可以稳定达到《污水综合排放标准》(GB8978—1996)的一级标准,可回用于循环冷却、绿化、冲厕、道路冲洗等。介绍了生物处理工艺的主要设计参数、控制参数以及运行经验 ...
李国欣, 杨俊仕, 李旭东
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[Simultaneous determination of 15 bisphenols in prepared dishes by soild phase extraction purification-ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuZhan ZY +5 more
europepmc +1 more source
[Rapid screening of 84 pesticide residues in dendrobium by Sin-QuEChERS Nano purification column with gas chromatography-tandem mass spectrometry]. [PDF]
Se Pu, 2022 Zhang Q +9 more
europepmc +1 more source
[Magnetic one-step purification-high performance liquid chromatography-triple quadrupole/composite linear ion trap mass spectrometry for the determination of 54 veterinary drug residues in carp]. [PDF]
Se PuWen YP +6 more
europepmc +1 more source
[Rapid screening of 125 pesticide residues in tea substitutes by multi-plug filtration cleanup method combined with gas chromatography-tandem mass spectrometry]. [PDF]
Se PuZhang Q +8 more
europepmc +1 more source
, 2016 本发明公开了一种硫化烷基酚盐清净剂、其制备方法及应用。该制备方法包括：将硫化烷基酚盐在复合碱催化剂存在的条件下与有效量的醛、具有至少一个活性氢的伯-仲单胺化合物和-或羟基芳族化合物和-或烷基丙烯酸酯反应，获得低烷基酚含量的硫化烷基酚盐清净剂。利用本发明的方法可制备低烷基酚含量的多功能高碱值硫化烷基酚盐，同时通过在制备过程中采用复合碱催化，不仅提高了催化效率，而且该反应过程采用一锅法，简化了操作过程，缩短了反应时间，具有低废物排放及高效率的特点，所获产品在清净性 ...
马玉杰 +6 more
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[Simultaneous determination of 50 veterinary drug residues in fish， shrimp， and crabs using a composite purification column-ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuDeng HD, Ji XF, Xiao YP, Xia Q, Yang H.
europepmc +1 more source
[Determination of paraquat and diquat residues in urine samples based on solid-phase extraction and ultra performance liquid chromatography-high resolution mass spectrometry]. [PDF]
Se Pu, 2022 Pan S, Wang L, Qiu Q, He Q.
europepmc +1 more source
, 2009 本发明公开了一种净化水质生物沉床的方法，它包括下列步骤：Ａ、沸石床的制作；Ｂ、沸石的处理；Ｃ、调节沸石床在水面下的深度；Ｄ、沉水植物的栽种；Ｅ、沸石床可固定或不固定；Ｆ、调节沸石床，以保持沉水植物的生长和水体的景观。本发明改善了受富营养化污染水体的质量，提高了水体的透明度，遏止了“藻华”的爆发，促进了水域中生物多样性的恢复，制作简单，成本低 ...
敖鸿毅, 付长营, 高镜清, 方涛
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