产品介绍：
产品说明
一般描述
A new development in SPME fiber technology incorporates a protective overcoating on the fiber. This overcoating, which consists of polydimethylsiloxane (PDMS) serves as a barrier to protect the fiber from the matrix, which makes it more physically robust and less prone to chemical fouling. High background samples, such as many foods, pose a challenge to immersion SPME due to the presence of fats, sugars, pigments, and other macromolecules. These can stick to the SPME fiber and reduce its usable life and/or be transferred to the GC, where they may interfere with chromatographic analysis. Overcoating the fiber with PDMS reduces these problems.
基本信息
| NACRES | NB.21 |
产品性质
| 质量水平 | 100 |
| 物料 | StableFlex fiber (Polydimethylsiloxane/Divinylbenzene (PDMS/DVB)) notched pink hub |
| 针尺寸 | 23 ga |
| 描述 | Polydimethylsiloxane/Divinylbenzene (PDMS/DVB) fiber overcoated with a layer of PDMS. |
| 包装 | pkg of 3 ea |
| df | 75 μm (Coating thickness includes 65 μm coating + 10 μm OC (overcoating)) |
| technique(s) | solid phase microextraction (SPME): suitable |
| 光纤长度 | 1 cm |
| 基质活性基团 | PDMS/DVB coating, Overcoated Polydimethylsiloxane/Divinylbenzene |
| application(s) | food and beverages |
| 相容性 | for use with autosampler or manual (for direct immersion into matrix or headspace analysis of volatile or semi-volatile analytes (MW 50-300+)) |
