GC-MS PrincipleSource
GC相关问题仍然存在,例如活性和样品降解,尤其是在样品经过较少预处理的情况下,例如使用GC-MS/MS时,如果矩阵不可见,则可能会影响分析。 GC-MS和GC-MS药物检测的应用 GC-MS和GC-MS/MS被广泛应用于许多行业,用于常规分析,检测通常分子量小于700 amu的挥发性污染物,例如食品、环境、法医、反兴奋剂和消费品行业。GC...
GC-MS还用于研究中识别未知的挥发性化合物，涵盖食品与香料、航天、石油化工、化学、农业、烟草、制药、...
This is the guiding principle behind the QuEChERS technology. Solid phase micro extraction (SPME): Used before both gas chromatography or HPLC, SPME is a sample extraction technique that does not use solvent. Instead, a fused silica fi...
Solvent extraction: Many analytes, such as pesticides, are highly polar and therefore amenable to extraction with solvents such as acetonitrile. Upon addition of salts such as magnesium sulfate, phase separation of acetonitrile from water oc...
PerkinElmer TG-GC MS微塑料分析应用指南说明书 TG-GC/MS: Analysis of Microplastics in Suspended Solids 1Introduction Microplastics are a major concern due to their impact on the environment. There is growing research into microplastics,typically submillimeter in size, and which often end up in ...
Key words: forensic toxicological analysis; sevoflurane; biological specimens; HS-SPME/GC-MS 文章图片 七氟烷又称七氟醚, 即氟甲基-1, 1, 1, 3, 3, 3-六氟异丙基醚, 分子式:C4H3F7O, 为不燃的含氟甲基异丙基醚的衍生物, 常温下为液体, 沸点为58 ℃。七氟烷合成于1968年, 1984年日本购买了七...
但是,只看数据平均数经常无法分析出真正的GC问题。这是主要是因为GC操作时间严重的偏差(换句话说,假如两次full GC的时间是 67ms,那么其中的一次full GC可能执行了10ms而另一个可能执行了57ms。)为了更好地检测每次GC处理时间,最好使用 –verbosegc来替代数据平均数。
供应岛津gc-ms:超快速GC-MS灵敏度和分析效率飞跃*的 随着环境污染和人类健康相关的痕量化合物监测的增多,对高功能新材料和化学品的研究和开发的日益关注,分析仪器发挥着巨大的作用。单四极杆型气相色谱质谱联用仪GCMS-QP2020以的性能优势,智能化的分析软件,专属性的数据库和多种分析系统,*扩展您的实验能力,适用于...
(2014)13-1853-04 QualitativestudyofVOCsfromchemicalrawmaterialsbyGC-MS LIANGSu-dan ZhuhaiMunicipalCenterforDiseaseControlandPrevention,Zhuhai519002,China Abstract:ObjectiveToestablishamethodforqualitativeanalysisof30VOCsinchemicalrawmaterialsbyheadspace-GC/MS.MethodsUsingstaticheadspaceprinciple,whenVOCsfromchemicalraw...