
( Brand: Milliporesigma Supelco ), ( Manufacturer Part Number: 57312 ), ( Country Of Origin: United States )
Introducing the MilliporeSigma Supelco 57312 SPME Fiber, a versatile and effective tool for extracting volatile and semi-volatile compounds from various matrices. This SPME fiber is coated with Carbowax/Divinylbenzene (CW/DVB) stationary phase, which offers an optimal balance between thermal stability, adsorption capacity, and selectivity for a wide range of organic compounds.
The CW/DVB coating on this SPME fiber is a cross-linked polymer that provides excellent thermal stability, allowing it to withstand temperatures up to 250 C. This makes it suitable for use in high-temperature desorption techniques, such as GC-MS and GC-FID, to ensure complete desorption of the extracted compounds.
The adsorption capacity of the CW/DVB coating is another impressive feature of this SPME fiber. The Carbowax component of the coating has a high affinity for polar compounds, while the Divinylbenzene component is effective at adsorbing non-polar compounds. This makes the 57312 SPME Fiber an excellent choice for extracting a broad spectrum of organic compounds from complex matrices.
The selectivity of the CW/DVB coating is another key advantage of this SPME fiber. The Carbowax component of the coating can form inclusion complexes with polar compounds, which can enhance their adsorption and desorption efficiency. This selectivity can lead to improved sensitivity and accuracy in the analysis of complex samples.
The MilliporeSigma Supelco 57312 SPME Fiber is designed for use in the Solid-Phase Microextraction (SPME) technique, a powerful and efficient method for sample preparation in analytical chemistry. This technique offers several advantages over traditional liquid-liquid extraction methods, including reduced sample preparation time, improved extraction efficiency, and reduced solvent usage.
The 57312 SPME Fiber is available in various lengths and diameters to suit different sample preparation needs. It is packed in a protective tube with a stainless steel needle for easy insertion and removal from the sample matrix. The fiber is also supplied with a pre-conditioning procedure to ensure optimal performance and reproducibility.
In summary, the MilliporeSigma Supelco 57312 SPME Fiber with CW/DVB coating is a versatile and effective tool for extracting volatile and semi-volatile compounds from complex matrices. Its excellent thermal stability, adsorption capacity, and selectivity make it a valuable addition to any analytical chemistry laboratory.
The MilliporeSigma Supelco 57312 SPME Fiber is a popular choice for Solid-Phase Microextraction (SPME) applications due to its Carbowax/Divinylbenzene (CW/DVB) coating. SPME is a powerful and versatile sampling technique used for the extraction and analysis of volatile and semi-volatile organic compounds. In this analysis, we will discuss the advantages and disadvantages of using the MilliporeSigma Supelco 57312 SPME Fiber for various applications.
Pros:1. versatile: The MilliporeSigma Supelco 57312 SPME Fiber can be used for a wide range of applications, including headspace analysis, direct immersion, and stir bar extraction.
2. thermal stability: The CW/DVB coating offers excellent thermal stability, allowing it to be heated up to 250 C during desorption, making it suitable for high-temperature applications.
3. high capacity: The fiber has a large adsorption capacity, which enables it to extract a significant amount of target compounds from complex matrices.
4. low limit of detection: The fiber has a low limit of detection, making it ideal for trace analysis applications.
5. robust: The fiber is robust and can be reused multiple times, which makes it a cost-effective option for laboratories with high sampling volumes.
Cons:1. limited applicability: The MilliporeSigma Supelco 57312 SPME Fiber is not suitable for all types of compounds. It is most effective for the extraction of volatile and semi-volatile organic compounds.
2. desorption temperature: The high desorption temperature required for this fiber can lead to the degradation or loss of thermally labile compounds.
3. fiber swelling: The fiber can swell during extraction, which can affect its performance and require careful handling and monitoring.
4. fiber fouling: The fiber can become fouled during extraction, particularly in complex matrices, which can reduce its efficiency and require frequent cleaning.
Conclusion:The MilliporeSigma Supelco 57312 SPME Fiber with a CW/DVB coating is an effective and versatile tool for the extraction and analysis of volatile and semi-volatile organic compounds. Its advantages, such as thermal stability, high capacity, and low limit of detection, make it a popular choice for laboratories. However, its limitations, such as limited applicability, desorption temperature, fiber swelling, and fouling, should be taken into consideration when deciding whether to use this fiber for a particular application.
Recommendation:Based on the analysis, we recommend the MilliporeSigma Supelco 57312 SPME Fiber for applications involving the extraction and analysis of volatile and semi-volatile organic compounds, where its advantages outweigh its limitations. However, for applications involving thermally labile compounds or where a lower desorption temperature is required, alternative SPME fiber coatings should be considered. Additionally, proper handling and monitoring during extraction, as well as regular cleaning, can help mitigate the effects of fiber swelling and fouling.
65 m partially cross linked phase. Matrix active group.