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- 详细信息
- 文献和实验
- 技术资料
- 库存:
999
- 供应商:
北京泽平
- 现货状态:
热销品大量现货,其余请咨询
- 保修期:
1年
- 规格:
EA
货号:T_70310586185
中文名称:
英文名称:GC column Thermo Scientific Trace GOLD TG-5MS 5% diphenyl/95% dimethyl polysiloxane equivalent to
货期:热销品现货,其他请咨询




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文献和实验测定鱼中二噁英PCDDs/PCDFs、类二噁英多氯联苯、非类二噁英多氯联苯
素标准品。 分析 根据不同情况,浓缩萃取物,经过多步色谱纯化:硅胶/硫酸,氧化铝和Florisil柱。通过HRGC/HRMS测定分析PCDD/Fs和PCBs。使用Thermo Scientific Trace-GC-Ultra和Thermo Scientific DFS高分辨质谱。目标分析物通过DB-5MS色谱柱(60 m x 0.25 mm x 0.25 μm)分离。PCDD/Fs and PCB的浓度通过同位素稀释法测定。 结果 快速溶剂萃取SpeedExtractor E
information. Fluorescence in situ hybridization (FISH) is the gold standard for localization of nucleic acids (Fauth and Speicher, 2001; van der Ploeg, 2000). The introduction of amino-allyl modified bases (Langer et al., 1981) allowed the chemical synthesis
were from Fisher. Sephadex G-50 resin (Cat. No. G-50-150) for purification was from Sigma. Columns were fashioned by removing the cotton from the top of one of these pipets and using a portion of it to plug up the tip. Secure the “column” vertically to a ring stand
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