20mm Crimp-top Aluminum Cap,8mm Centre Hole White PTFE/Blue Transparent Siliocone Septa

There are two types of packaging for 20mm Crimp Top Closures produced by Aijiren, one is packaged in plastic bags, the other is packaged in threaded plastic cans, and the quantity is 100 per bag/can. Aijiren is packaged in cans. Because 20mm Crimp Top Closures are easily squeezed and deformed during transportation, which affects the sealing effect in the experiment, they are packed in cans.

1 ml shell vial
Size 40 x 8.2 mm
Usable volume 1 ml, residual volume <80 µl, minimum working volume 100 µl, total filling volume 1ml PE-Plug,Soft,Without Insertion Quantity 100/pack The polyethylene SepCap designed by Aijiren's Starburst Center can simplify the penetration of syringe needles. The convenient 1ml vial kit includes equal vials and caps. The micro sample vial allows the maximum extraction of samples without the need for a separate insert. Suitable for experiments with few samples.

PTFE is the most inert but its poor resealability making it unsuitable for multiple injections or storage. For layered septa such as PTFE/silicone the chemical resistance of the septa is that of PTFE until the septum is punctured. Once punctured, the silicone layer is exposed and able to react with sample/solvent so the chemical resistance of silicone should be considered when using these septa.

Buy Aijiren Sample Storage Vial online at wholesale rates. If you have been looking for Sample Storage Vial, your search ends here as you can get the best Sample Storage Vial in China. You can purchase Sample Storage Vial of the finest quality and rest assured to get the best in terms of both durability and performance. If you are bothered about the Sample Storage Vial prices, you can be totally sure to get the best rates as Aijiren brings you genuine Sample Storage Vial rates and quality assured products. Procure Sample Storage Vial today and avail the best offers on your purchase.

Headspace vials have different capacity specifications, including 6ml, 10ml, 20ml, etc. Use a standard sample vial to ensure sufficient headspace. Usually, the reserved volume should be at least 50% of the sample volume.

Aijiren’s 20ml crimp top headspace vials have two types of round bottom and flat bottom. Please check the instrument you are using before buying. Is the round bottom or flat bottom headspace vial suitable? Aijiren designed the 20ml crimp top headspace vials in order to be more Accurately use with your instrument. 20ml crimp top headspace vial has a very good seal and can be used for volatile samples, but it needs to be used with 20mm Hand Crimper to seal the vials, and when opening the lid, it needs to be sealed with 20mm Hand Decrimper. You can refer to Aijiren’s product page to purchase the matching Hand Crimper/Decrimper.The caliber of the 20ml crimp top headspace is 20mm. Before buying, you need to check the specifications carefully to prevent it from being used after purchase.

Storage glassware manufactured in Type 1, Class A, 33 expansion borosilicate glass or 51A amber glass
Capacity ranges from 20 to 40mL
Provide constant pH for duration of sample storage life
Chemically inert caps suitable for most chromatography and storage applications
Top grade PTFE/silicone septa used for cleanliness

The EPA sample vial is a standard 24-400 threaded sample vial, which can be used for sample loading and storage of environmental samples or various chemical substances;

The storage bottle was provided by Aijiren. These vials have a capacity of 20-40ml. These vials can be used to store biological materials. The cap has a built-in sealing ring to prevent the sample bottle from leaking. The bottom of the sample vial has a longitudinal groove, when placed in the vial rack, it has the characteristic of not twisting.

The 18mm Screw Headspace with caps with electromagnetic screw seals used for CTC is novel in the headspace vial market dominated by crimping necks. Especially for magnetic caps that are difficult to crimp, screw caps are a convenient choice. 18mm Screw Headspace with caps with aluminum skirt and magnetic center plate, it is easy to crimp and remove the cap. 18mm headspace vial with cap is preferred for the following instruments: Shimadzu.
How to choose whether to buy the Headspace Vial with round bottom or flat bottom? The round bottom is stronger, so it is more resistant to the high pressure in the sample Vial during heating. In addition, the vial is easier to slide into the heating block when transported by the magnet. When the vial must run in the instrument with a slight downward trend, a flat bottom may be required.Select the correct Headspace Vial at the bottom and use modern instruments to prepare the entire experiment with highly repeatable samples for accurate analysis.

Reagent bottles, also known as media bottles or graduated bottles, are containers made of glass, plastic, borosilicate or related substances, and topped by special caps or stoppers. They are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves.

Hydrophilic nylon membranes have extremely low levels of extractables and contain no wetting agents. They offer good chemical resistance and are ideal for aqueous and most organic samples. Filters are Triton-free and have a bidirectional membrane support and luer lock inlet/outlet for a secure fit to the syringe. Membrane type and pore size are printed on each filter for easy identification. All Cole-Parmer syringe filters are 100% integrity tested and manufactured in accordance with ISO 9002 standards. Sterile filters are sterilized by gamma radiation. They are certified nonpyrogenic, noncytotoxic, and are blister packed.

COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid response to changing conditions before critical problems develop. 

Aijiren Tech crimp top headspace vials are available in a flat or round bottom style, with clear or amber glass. Headspace closures are available in pre-assembled caps with septums or can be ordered individually. Pressure release, seal with lining, and seal with magnetic lining are also optional.

2ml screw autosampler vial refers to a specific type of vial used in laboratories for the storage and analysis of samples. It is designed to be compatible with autosamplers, which are automated instruments used for sample handling and injection into analytical instruments such as gas chromatographs (GC) and liquid chromatographs (LC).
The “2ml” refers to the vial’s nominal volume, which is 2 milliliters. This volume indicates the maximum capacity of the vial. The vial typically has clear glass or sometimes amber glass construction, allowing for visibility of the sample contents. The vial is cylindrical in shape with a screw thread on the outer surface of the neck.

Chemical oxygen demand is a vital test for assessing the quality of effluents and waste waters prior to discharge. The Chemical Oxygen Demand (COD) test predicts the oxygen requirement of the effluent and is used for monitoring and control of discharges, and for assessing treatment plant performance. The impact of an effluent or waste water discharge on the receiving water is predicted by its oxygen demand. This is because the removal of oxygen from the natural water reduces its ability to sustain aquatic life. The COD test is therefore performed as routine in laboratories of water utilities and industrial companies.