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国外进口厂家天天并购又重组。作为液质的小菜鸟完全搞晕了。 AB.ABI,热电,赛默飞世尔,菲尼根做液质时总能听见这几个厂家或者品牌,但是完全搞晕了。AB是从ABI厂家分出来的吗?ABI是不是曾今又和热电合并过?热电是不是现在又并到赛默飞世尔里了?菲尼根又是热电旗下的?完全搞晕了。还有什么大质谱。 大家来讨论下现在几个液质联用厂家的前世今生吧。到底谁是谁,谁和谁又是什么关系
非靶向和靶向代谢组学检测物质代谢组的时候选用仪器需要注意些什么呢?做非靶向分析的话可以用靶向分析的仪器吗?
读了篇文献[Targeted and untargeted gas chromatography-mass spectrometry analysis of honey samples for determination of migrants from plastic packages(塑料包装蜂蜜样品中迁移物测定用靶向和非靶向[url=https://insevent.instrument.com.cn/t/Mp][color=#3333ff]气相色谱[/color][/url]-质谱分析)],[url=https://insevent.instrument.com.cn/t/Mp][color=#3333ff]气相色谱[/color][/url]分析采用Agilent 6890 N (Agilent, Waldbronn, Germany)[url=https://insevent.instrument.com.cn/t/Mp][color=#3333ff]气相色谱仪[/color][/url]与配备惰性离子源的Agilent 5973四极质选谱仪进行。【文献原文:2.2. Instrumentation and software:GC analyses were performed on an Agilent 6890 N (Agilent, Waldbronn, Germany) gas chromatograph coupled to an Agilent 5973 quadrupole mass selective spectrometer equipped with an inert ion source.】在非靶向分析那写的:根据文献,包括目标分析物和其他从塑料到食物的潜在迁移物的数据库,已创建(补充数据表S2)。利用NIST和Wiley质谱文库对所研究的蜂蜜样品中的m/z离子特征进行了监测,并对其进行了鉴定。共检出13种疑似化合物。[文献原文: 3.4.2. Untargeted approach :A database including the target analytes and other potential migrants from plastic into food, based on the literature, has been created (Supplementary data Table S2). Based on their characteristic m/z ions, all these compounds were monitored in the studied honey samples using the NIST and Wiley MS libraries for their identification. A total of 13 putative compounds were found.]文献中用的是低分辨质谱吧?低分辨质谱能进行非靶向分析吗?但是低分辨质谱不是需要标品吗?文献就只有靶向分析的标品,非靶向分析只有数据库也行吗?