13/25 mm,0.22 um PTFE syringe filter for hplc

The PES film is sealed in the polymer shell without the use of any adhesive. Each unit can provide ETO or Gamma radiation disinfection, and ensure that there is no pyrogen.

Our expert staff is available via live chat and email to help you decide on the best membrane filter for your needs. Email us, and our helpful customer representatives will respond promptly—in just one business day or sooner. And if you still need help deciding on the right product, we’ll ship you a sample to ensure you receive the best membrane filter for your needs.

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.

Aijiren’s 8mm Septa is made of Silicone and PTFE raw materials. Aijiren cuts Pre-slit on Septa for the convenience of customers. The pattern is a font and a cross. The cross-shaped pre-slit septa is the best. It is convenient for the automatic injection needle to puncture. If the customer uses a blunt needle, you can consider buying a cross-type pre-slit septa.

Aijiren 2ml 9mm Screw HPLC Vial is very popular, because Screw threaded HPLC Vial is very convenient to use, whether it is for storing samples or for automatic injection, different sizes of caliber can also be applied to different brands and types of automatic injection The 2ml 9mm Screw HPLC Vial is the choice of most customers on the market.

Unique dual-track cap and septa combination machine
Double track, double speed, double efficiency

The screw top vial design is characterized by general ease of use, especially with autosampling systems, hence the name autosampler vial. The 1.5 ml vials are commonly referred to as 2 ml capacity vials.

Aijiren produces glass Vials products such as Autosampler Vials, Headspace Vials, COD Test Tube, EPA Vials, Sample Storage Vials, which are all key products produced by Aijiren. These products have good stability, can withstand high temperatures and low temperatures, and will not suffer from high chemical resistance. Reagents change the form of Vials. Aijiren produces these glass Vials to improve the efficiency of customer experiments.

Our storage vials, also known as step vials or dram vials offer a great solution for storing solvents for extended periods of time. Our screw thread vials offer enough threads per inch to eliminate evaporaton with a solid top or lined cap.

HPLC autosampler vials  are generally categorized by vial diameter, vial height, and thread finish. Clear glass and amber glass have similar inert properties. Amber glass is used to protect sensitive samples from UV light. Markings on the vials provide sample identification information. Autosampler vials can be used to inject samples from an autosampler.

A handy and inexpensive vial/closure combination for uncritical analyses.
Star-shaped diaphragm enables easy penetration of the PE-Plug.
Recommended for HPLC usage.
For the 1ml Shell Vials a plug with and one without insertion barrier for Micro-Inserts is available. The one without barrier shows a better valve effect with regard to the formation of a vacuum.
Shell vials and the appropriate plugs can also be supplied as a 2in1 KIT.

Product applications: water purification, HPLC sample preparation, mobile phase solution filtration, cell culture, microbial filtration or sampling, protein precipitate removal, particle removal and monitoring, QC analysis, content consistency, dissolution testing, environmental sampling, food analysis. Generally speaking, 0.45 ¦Ìm pore size is suitable for removing particles from samples or the mobile phase solution of chromatography equipment, and 0.22 ¦Ìm is suitable for filtering microorganisms.

To use the digital heater for the COD test, set the temperature on the digital display to 150°C. On no account must the heater be set at a higher temperature than that specified as this may cause a hazard through pressure build-up in the COD tubes.

With a large enough change in temperature, the neck of the bottle can actually crack if it shrinks too tight around the stopper. Additionally, if hot liquid is poured in the bottle, the liquid will form an air-tight seal between the stopper and bottle and as the liquid and steam in the bottle cool and shrink, the stopper will be pulled down into the bottle neck.? This is the same principle that makes the center of a canning jar lid pop down until the seal is released.

Discover premium quality clear borosilicate reagent bottles with GL45 blue caps. Available in various sizes: 50ml, 100ml, 250ml, 1000ml, and 2000ml. Shop now!

The butyl rubber product is an off-white rubber-like solid with a density of 0.92g/cm3. It is odorless, insoluble in water, and soluble in hexane and chloroform. The product also has low air permeability, good airtightness, and good resistance. Ozone resistance, chemical resistance, electrical insulation, flexibility resistance, heat aging resistance, energy absorption and other characteristics.

Approximately 40% larger than a normal small neck
The increase of the target area makes sample preparation easier
Large diameter is specially designed for automatic samplers such as Waters
The large-mouth design reduces the probability of bending and damage of the sample needle during the needle sampling process

Autosampler vials are available in a variety of sizes, with 2 mL vials being the most common size. Chromatography autosampler vials are widely used in chromatography, chemistry, medical and other fields. Autosampler vials are generally made of hydrolytic glass or borosilicate, with various specifications.

Glass test tube is a cylindrical container made of glass that is commonly used in scientific laboratories for holding, mixing, and heating small quantities of liquid or solid substances. Test tubes are usually open at one end and have a rounded or slightly flared bottom. They come in various sizes, ranging from a few centimeters to several centimeters in length.
Test tubes are designed to withstand high temperatures and chemical reactions, making them suitable for a wide range of experiments and analyses.

Nylon membrane has high strong mechanical strength, chemical stability, can be tolerated by most organic solvents, extremely low in extractables, good thermal stability (up to 50¡ãC), natural hydrophilic and the majority of water solution filter characteristics. It more often applied to the common organic solvent HPLC mobile phase filtering.

8-425 HPLC Vials is a GC and HPLC standard sample bottle, small caliber, 8-425 standard thread, suitable for autosampler and sample storage. It can be used with matching septa. The 8-425 autosampler vial is always suitable for Shimadzu, Spectra-Physics, Varian, and other autosamplers. It is a popular product of Aijiren, and it can be customized whether to add a writing area or a scale.