The gauge designation and actual size of needles follow an inverse relationship. Therefore, a 24 gauge needle is smaller than a 23 gauge needle. Needle gauge sizes also apply to the SPME needle used for sampling. While the original SPME fibers were manufactured with 24 gauge needles, it is highly recommended to use 23 gauge needles for all applications that involve an autosampler. The 23 gauge needles are well-suited for use with the Merlin Microseal septum system and other septum-less seals. However, it is advisable to avoid using 23 gauge needles with standard silicone septa, as they may cause coring of the septum.
推荐产品
产品名称
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with autosampler
材料
StableFlex fiber
plain gray hub
品質等級
針尺寸
23 ga
包裝
pk of 3
環保替代產品特色
Waste Prevention
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
df
30 μm (CAR/PDMS layer)
50 μm (DVB layer)
技術
solid phase microextraction (SPME): suitable
纖維長度
1 cm
基質活性組
DVB/CAR/PDMS coating
應用
food and beverages
相容性
for analyte group flavors (volatiles and semivolatiles, C3-20) (MW 40-275)
for use with autosampler
環保替代類別
, Aligned
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相关类别
一般說明
我们竭诚为您带来绿色替代产品，以符合绿色化学12项原则的一项或多项要求。本品为固相微萃取(SPME)技术产品。SPME是绿色环保的样品制备技术，包括采用无溶剂萃取技术、SPME纤维萃取头可重新利用、产生的废弃物极少，符合“废物预防”和“安全的溶剂和助剂”原则。点击 此处 以获取更多信息。
應用
SPME纤维束二乙烯基苯/羧基/聚二甲硅氧烷(DVB/CAR/PDMS)用于通过顶空-固相微萃取法以及气相色谱与质谱联用的方法分析历史性塑料和橡胶材料的VOC排放。[1]
特點和優勢
设计与 Merlin Microseal 密封系统结合使用；可与其他无隔垫的系统一起使用。
其他說明
外观可能会有所不同。纤维头上可能可见较暗的斑点，但不会影响性能。
腳註
键合到柔性熔融石英芯层上的涂层，在更不易断裂的萃取头上获得更合适的涂层。与在标准熔融石英芯层上的同样涂层相比，在萃取选择性上略有区别。
其他客户在看
The development of a SPME-GC/MS method for the analysis of VOC emissions from historic plastic and rubber materials.
Curran K, et al.
Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science, 124, 909-918 (2016)
Johannes Kiefl et al.
Journal of chromatography. A, 1243, 81-90 (2012-05-11)
The continuous interest in non-targeted profiling induced the development of tools for automated cross-sample analysis. Such tools were found to be selective or not comprehensive thus delivering a biased view on the qualitative/quantitative peak distribution across 2D sample chromatograms. Therefore
Amparo Gamero et al.
Journal of chromatography. A, 1272, 1-7 (2012-12-19)
MicroVinification platforms are used for screening purposes to study aroma development in wine. These high-throughput methodologies require flavor analysis techniques that allow fast detection of a high number of aroma compounds which often appear in very low concentrations (μg/l). In
Sanja Risticevic et al.
Journal of chromatography. A, 1251, 208-218 (2012-07-10)
Metabolomics currently represents one of the fastest growing high-throughput molecular analysis platforms that refer to the simultaneous and unbiased analysis of metabolite pools constituting a particular biological system under investigation. In response to the ever increasing interest in development of
Sílvia M Rocha et al.
Journal of chromatography. A, 1252, 155-163 (2012-07-11)
Metabolomics represents an emerging issue that can aid in the diagnosis and/or prognosis of different diseases. Metabolomic study of urine is particularly interesting as it can be on the base of the developing of new faster and non-invasive methodologies. In
商品
The work describes the development of an HS-SPME-GC-MS method to determine 2-chloroethanol as a marker of fumigant ethylene oxide in different kinds of sesame seed samples.
A throughput HS-SPME-GC-MS method to analyze volatile compounds in Perilla leaves at low extraction temperatures using four different SPME fibers.
实验方案
GC Analysis of Terpenes in Cannabis on Equity®-1 after Headspace SPME using 50/30 μm DVB/CAR/PDMS Fiber
SPME offers efficient sample preparation for analyzing terpene/terpenoid profiles in plant essential oils using automation.
通过实验室间试验结果证明了顶空SPME联合GC/MS测定水中VOC方法的优异性能、可靠性和重复性。从检测的灵敏度和选择性来说，采用顶空SPME法的新ISO 17943标准比现有的官方方法更加先进。
High performance, reliability, and reproducibility of HS-SPME in combination with GC/MS for the determination of VOCs in water was proven in an interlaboratory trial. The new ISO 17943 using HS-SPME is an improvement on existing official methods for this determination in terms of sensitivity and selectivity.
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