? ? ? ? ? ?
What are the advantages of each of the three sealing methods of sample vials?
Home / Technical Center / What are the advantages of each of the three sealing methods of sample vials?

What are the advantages of each of the three sealing methods of sample vials?

Date:2021-08-09 17:51:18 Monday
Summary:   The sample bottle is made of neutral borosilicate and low borosilicate materials, and can be equipped with ordinary PE gaskets or corrosion-resistant Teflon/silicone gaskets to ensure better corrosion resistance and tightness.  Sample bottle cap g......
  The sample bottle is made of neutral borosilicate and low borosilicate materials, and can be equipped with ordinary PE gaskets or corrosion-resistant Teflon/silicone gaskets to ensure better corrosion resistance and tightness.
  Sample bottle cap guide:
There are three types of caps for sample vials: crimp caps, bayonet caps and screw caps. Each sealing method has its own advantages.
   screw cap
   The screw cap is universal. Tightening the cap will apply a mechanical force, squeezing the septum between the rim of the glass bottle and the aluminum cap. In the process of piercing and sampling, the screw cap has an excellent sealing effect and mechanically resists the septum. No tools are required for assembly.
2D Cryogenic Vials 1.5ml Extorsion Orange
   bayonet cover
  The bayonet cover is an extension of the sealing method of the jaw cover. The plastic cap sleeved on the rim of the sample bottle forms a seal by squeezing the septum between the glass and the stretched plastic cap. The tension of the plastic cover is caused by its attempt to restore its original size. This tension creates a seal between the glass, bottle cap and septum. The plastic bayonet cap can be closed without any tools.
The sealing effect of the bayonet cap is not as good as the other two sealing methods.
   If the fit of the bottle cap is very tight, it is difficult to close the bottle cap and may break.
   If it is too loose, the sealing effect will be poor and the septum may leave its original position.
   crimp cover
The crimp cap squeezes the septum between the rim of the glass vial and the folded aluminum cap. The sealing effect is very good, which can effectively prevent the sample from evaporating. When the injection needle of the autosampler pierces the sample, the position of the septum remains unchanged. The crimp cap sample bottle needs to be sealed with a capper to complete. For a few samples, a manual capper is a better choice. For a large number of samples, an automatic capper can be used.
Centrifuge Tubes

Centrifuge Tubes

Item No. Volume Bottom shape Max RCF(g) Sterile......

Microcentrifuge Tubes

Microcentrifuge Tubes

Product model Capacity Color No enzyme Packing ......

Solution Basins

Solution Basins

Item No. Volume Material Sterile Non-enzyme Pac......

Pipette Tips

Pipette Tips

Item No. Volume Color Low adsorption Sterile No......

Filter Pipette Tips

Filter Pipette Tips

Item No. Volume Color Low adsorption Sterile No......

Pipette Tips For Rainin

Pipette Tips For Rainin

Item No. Filter Volume Color Sterile Non-enzyme......

Pasteur Pipettes

Pasteur Pipettes

Item No. Volume Length Sterile Non-enzyme Packi......

PCR Tubes

PCR Tubes

Item No. Volume Color Type Cap Non-enzyme Packa......

PCR Plates

PCR Plates

Item No. Volume Color Skirt Type Non-enzyme Pac......

Petri Dishes

Petri Dishes

Item No. Product Size Stacked Design Sterile Pa......