网页A GC septum is located at the top of the injection port and serves two functions: 1) providing a leak-free seal to maintain carrier gas pressure inside the system. 2) handling repeated

网页2020年11月16日 · Troubleshooting Injection Port Septa. Gas Chromatograph (GC) injection port septa are a critical item in your GC system, but many of the associated problems are often misunderstood. This article will focus on different injection port septa, potential problems, and common fixes. Probably the number one problem with GC

网页Long Life GC Autosampler Septa are designed for use with GC Autosamplers. The 5, 9, 11 and 11.5 mm diameter Long Life septa are available with our unique prepierced center depression which guides the syringe needle to the same injection point, extending septa life and reducing needle. Related Products: Injection Septum.

网页2005年9月1日 · Figure 2 - Septum degradation (seen as ghost peaks). Following is a simple test that can be performed in the laboratory: Keep the column cold (30 °C) for 15 min, perform a blank run (no injection—only a temperature program up to 300 °C), and observe the baseline. After that run, cool the column to 30 °C again, keep it at 30 °C for 60 min

网页GC Accessories Septa and Accessories Pyrosep S-1 Septa Inlet Temperature: 300 C to 400 C − Pyrosep S-1 septa are made from a Teflon-type elastomer conditioned at 300 C to minimize bleed. Because they are relatively

网页2020年10月27日 · All GC septa, regardless of their composition, puncturability, or resistance to thermal degradation, will be a source of problems if they are mishandled. Always use clean forceps, or wear clean powderless or cotton gloves when handling septa. Do not handle them with bare fingers or with powdered latex gloves—contaminants such as

网页Thermogreen ® LB-2 Septa is suitable for the following applications: To minimize extraction onto or loss of analytes off the solid phase microextraction (SPME) fiber from the vial during analysis by GC-MS. [ 3] Thermo-resistant septa is used in GC instrument to avoid carrier gas leaks, extraneous peaks and phthalate contamination.

网页GCは、多くの業界において、品質管理や混合物中の化合物の同定および／または定量のために利用されています。 ウェットケミカル分析 化学試薬によって分析対象物が色素を

网页The blue septa offer a high-performance cost-effective alternative, offering a good level of inertness and are also recommended for GC applications. Septa come packed in a glass jar, for high purity. Or select the disc format where septa are located in individual pockets for ease of selection and avoids any risk of cross contamination.

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网页Premium Green Septa. • Low-bleed septum, combines significantly longer. injection life, low bleed and low injection port adhesion. • Maximum temperature (INJ setting temperature): 350°C. • 50 pcs. 227-35511-01. Red. Xtra Life Septum. • Extra long-life septum, lasts up to 10x longer than.

网页We offer a wide selection of septa including, Sleeve stopper septa, Pigment free septa, Serrated septa, and Precision Seal ® septa caps for suitable applications. Discover our comprehensive GC Septa product range and specialized hand tools that provide a leak-free seal to maintain carrier gas pressure inside the system and for handling repeated

网页2019年8月25日 · How to remove and replace a new septa in gas chromatography gc Here all my practices.. before follow this be with senior analyst. Don't follow exact this ... Here all my practices..

网页The septum you choose for your autosampler vial can impact sample evaporation, sample security, needle bending and blockages, and instrument down time. Don’t let the complexities of septa selection slow you down. Use the simple online Aijiren Tech Septa Selection Tool. Just answer a few questions to discover the best septa for your