Septum Vial Cap Selection: Factors to Consider for Optimal Sample Security

Multiple injections can core the vial cap septum and lead to significant GC septum bleed. Resistance to coring varies by septum material (Figure 5). Coring can be minimized by preparing separate vials for replicate injections, when feasible, and by carefully considering the type of septum material when multiple injections are necessary.

Catalog number: TS-13019. For a convenient, versatile, and cost-effective vial and closure system, choose Thermo Scientific™ Screw Cap Septum Vials. Made of autoclavable borosilicate glass and available with a wide assortment of special closures and accessories, these vials are ideal for sample collection and small derivatization reactions

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 Thermo Scientific SureSTART Selection Guideto find the right septa and vial for your analysis.

Aijiren vials 5 Vial Selection 6 Aijiren Vials Compatibility Chart 6 Sample size 13 Component options 13 Closures 14 Compatibility of septa and sample 14 Compatibility of septa and cap 15 Crimp cap vs. screw cap 15 Where to measure to match the vial size with its cap 16 Specialized Applications 17 Deactivated vials 17 Polypropylene vials 17

Use this simple septum selector tool to find the best septum for your autosampler vial and application.

forms when a large volume of sample is withdrawn from a vial. This septum provides chromatographic characteristics similar to that of a septum without a slit, except that the ability to withstand exposure to aggressive solvents is slightly lessened. Pre-slit septa are highly recommended for autosamplers with thin gauge needles or higher

Mar 31, 2022 · Choose the fitting cap and septum. For lesser sample sizes, consider using an insert. Decide on the material for the vial. Decide on the best technique of storage. So, as you may have gathered, selecting the correct vial for HPLC is not always a straightforward task however, I hope these recommendations serve as a good starting point.

Septum Selection Process Will my application require repeat injections from the same vial or storage of the sample? Resealability is an important factor to consider when selecting septa. PTFE/red rubber septa are not recommended for multiple injections or for samples that need to be stored for further analysis. When applications require a longer

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 Thermo Scientific SureSTART Selection Guide to find the right septa and vial for your analysis.

920969-00 Factors to Consider While Selecting Stoppers for Lyophilized Vials (White Paper) FINAL Author: salol Created Date: 3/18/2021 7:09:35 AM

These vials are the preferred choice for modern autosamplers. With a focus on improved sample security and integrity, we now offer innovative 9mm closures and 9mm screw top vials for consistent productivity on every separation. Standard opening screw-thread vials are manufactured from borosilicate glass and have a maximum fill volume of 2 ml.

Vial cap septa are critically important to optimal analysis. Each septum complements the overall system and enhances chemical performance. Aijiren vial cap septa are specifically formulated and constructed for opti-mum system performance, with minimal coring and superior chemical inertness. Red Rubber/PTFE • Routine analysis • Moderate

Environmental Express. 1.5mL Polypropylene vial with septum cap for Dionex AS-50 and AS-AP Autosampler. The septum is slit for easy penetration The septum is a laminate of blue PTFE on the bottom and white silcone on the top. Compare this item.

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 Thermo Scientific SureSTART Selection Guide to find the right septa and vial for your analysis.

Jun 9, 2022 · Coring, whether from the sample vial or the injection port septum, will result in an increased number of siloxanes that will manifest themselves as “ghost peaks” (5). Whether it is valve bleed, septum vial bleed, or GC inlet septum bleed, there will be late eluting compounds, with m/z 73 for many of them. Identifying the source of siloxanes