4.1 Sample Containers The specific sample containers required will depend on the purge-and-trap system to b e employed (see Sec. 4.2). Several systems are commercially available. Some systems emplo y 40-mL clear vials with a special frit and equipped with two PTFE-faced silicone septa. Othe r
Autosampler Vials, Caps, and Closures Thermo Scientific™ 20 mm Headspace Vials, Septum, and Caps Headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish.
FEP/Butyl Septa are designed for use with aluminum and threaded finishes, as well as headspace autosamplers requiring the sealing of sample vials in operating temperatures ranging from -60 to 200 C. Cone-shaped LDPE liners provide a two-part seal between the primary package rim and inner surface of the threaded container opening making them an
securely in place without bonding to the cap, so septa can be removed and replaced as needed. Amber is recommended for UV light sensitive samples. I-CHEM Certified® 200 and 300 series bottles are guaranteed to meet the EPA’s Performance Based Specifications for Volatile Organic Analysis.
Vials and Septa to meet your application: 1.5mL, 4mL, 10mL and 20mL headspace vials, EPA screw vials, crimpers and decappers, MS Certified Kits
1.5mL screw vial kit, including vial, cap and septa, 100/pack. Kit part number. Vial. Vial part number. Septa material. Cap/Septa part number. 220-97331-30.
Wide Mouth Septum Sample Bottles. Supplied with open top polypropylene caps and Teflon®/FDA grade silicone septa Include a polyproylene cap and Teflon/Silicone/polypropylene liner to ensure easier sampling and extraction 1755C64 through 1755C80 are clear; 1755D18 through 1755D28 are amber.
The sample container needs to contain the necessary preservative and the water should be introduced into the vials slowly without introducing any air bubbles within the vial. The vials should be completely filled at the time of sampling, so that when the septum cap is fitted and sealed, and the vial inverted, no headspace is visible.
Analytical Vials. Vials play a significant role in analytical analysis and result reproducibility. Vials must be inert and free of extractables or leachables to prevent affecting results. Using certified, application-specific, contaminant-free vials can significantly reduce risk. We offer a broad spectrum of Supelco ® products including
Aijiren 2 mL screw top vials are constructed from from Type 1 borosilicate glass, with low metal content, to protect your sample from destabilizing or leaching. The associated 9 mm screw caps come with your choice of cap septa constructed from either PTFE/silicone or natural red rubber.
Hinge Top Containers, Natural Hinge Top Pill Pods. Hinge Top Containers, Green Hinge Top Pill Pods. Plastic sample size containers could be a great choice to get your product in front of your client. All of our plastic sample size containers are under 2 oz in size. With many varieties and cap options to choose from, the possibilities are great.
the punctured septum, crimp cap, and neck of the bottles containing the enrichment cultures with Silicone rubber. Incubate the enrichment cultures on their side in the dark at room temperature. Submit the sample and spare sample for analysis of TBA, 1,2-DCA, benzene, and vinyl chloride by heated headspace GC/MS.
Ion chromatography sample vials for Dionex® part numbers 055058 & 074228 and Environmental Express® item K4300 for AS-50 and AS-AP autosamplers. Made from virgin polypropylene. Extremely low metals background. Pierce cap feature.
EPA 8260D Oxygenates Glass, FP-lined septum Cool < 6°C** 7 days 3x 40mL vials, zero headspace EPA 8260D Extractable Organics Acid / Base Neutrals Amber Glass, FP-lined cap Cool < 6°C**; store in dark 7 days until extraction 40 days after extraction 2.5 L EPA 625.1
Primarily, the septum should be inert to the sample solution and at the same time protect it from outside contamination as well as from possible evaporation. Almost all sealing discs are coated on one side with PTFE (Polytetrafluoroethylene), which has a high chemical resistance and forms an inert barrier between the sample and the carrier
