Material Variety and Features of the Sample Vial
Superior Sealing Property
Hawach’s transparent or amber sample vials have four capacities and are the best choice for injection and storage. Septa and cap for crimp top sample vials are corrosion resistant to many chemicals, and are the best material for sealing glass. Polypropylene thread cover with silicone rubber spacer is very clean to prevent sample contamination. All the caps have strict size standards and can match different automatic samplers.
Moreover, all septa and cap are made of hydrolyzed glass and meet the requirements of the European pharmacopeia. Septa and cap for crimp top sample vials are packed in a clean environment and specially designed to reduce contamination. Combined with the superior performance of automatic sampler, the use of septa and cap and easy to screw on the screw cap, screw cap, and precision matching spacer can ensure the sealing of micro-volume internal intubation.
Compared with other septa and cap for sample vials, it can always provide better safety sealing, and can also be used with the wide mouth bayonet sample vials. Furthermore, snap caps preassembled with septa can provide an inert, airtight seal to samples, and present better evaporation resistance with simple thumb pressure.
Hawach sample vial is made from advanced technology and excellent raw materials. It could be assembled with cap and septa, and use them instantly to save your time. Precise vial neck size can greatly ensure autosampler handle correctly. What’s more, it is fully compatible with various brands of automatic samplers. Strict quality control greatly ensures size consistency from batch to batch. It is suitable for Agilent, Waters, Varian, Shimadzu, and other brands of autosamplers. For more details, please contact us at any time. Septa and vial have better sealed with improved precision thread, which makes it can be directly closed by hand. All the products are certificated, and also meet the SGS test report.
Unique packaging is to reduce sample vial breakage; larger vial mouth can greatly prevent injection vial problems; unique thread design can ensure continuous safety seal. Patent design can greatly remove human factors, provide you with the ideal coverage and consistency, and avoid over-tightening. Furthermore, use flat or oblique vials to provide better tightness. Hawach offers different types of sample vials and matched caps and septa. Almost all the types & sizes of septa are available in Hawach.
Material Variety of Sample vial
Most of the sample vials are made of glass. When it comes to this material, we should first talk about the linear expansion coefficient, which refers to the change of the length of the glass for temperature. In short, the ability of glass to withstandS violent temperature changes. Classification of laboratory glass is based USP1(the American Pharmacopoeia) on its water resistance.
In addition to glass materials, there are other materials: polypropylene (Polypropylene, PP) is a hard material that can be processed into multiple colors and has good chemical tolerance, and is suitable for short-term storage of most laboratory chemicals. When aromatic hydrocarbons or halogenated hydrocarbons are used, their tolerance decreases with time.
Because of the high transparency, the TPX sample vial can replace the opaque PP. The chemical tolerance is similar to that of PP, TPX sample vials are usually used in cases requiring visual samples or high-temperature use. TPX sample vials are brittle at room temperature.
Potential Problems of the Sample vial
The importance of the sample vial during the experiment: although the automatic injection vial may seem irrelevant compared with the many precision analytical instruments used in the laboratory, the wrong use of the injection vial or cover and pad will have a significant impact on the experiment, resulting in a decrease in the efficiency and repeatability of the experiment.