When there is a problem with our experimental results, we always think of the sample vial in the end, but it is what we should consider first. When choosing the right vial for your application, you need to make three decisions: the capping pad, the cap, and the vial itself.
1. About the choice of Inner cap pad
PTFE
Recommended for a single injection
Excellent solvent resistance and chemical compatibility
Will not reseal after piercing
Long-term sample storage is not recommended
PTFE
Recommended for a single injection
Excellent solvent resistance and chemical compatibility
Will not reseal after piercing
Long-term sample storage is not recommended
PTFE/silica gel
Recommended for multiple injections and sample storage
Excellent resealing characteristics
Chemical resistance to PTFE prior to piercing. After piercing, the capping pad will have chemical compatibility with silicone
Working temperature: -40 °C to 200 °C
Recommended for multiple injections and sample storage
Excellent resealing characteristics
Chemical resistance to PTFE prior to piercing. After piercing, the capping pad will have chemical compatibility with silicone
Working temperature: -40 °C to 200 °C
Pre-cut PTFE/silica gel
Provides good ventilation to prevent vacuum in the sample vial for excellent sample reproducibility
Eliminate clogging of the bottom needle after sampling
Good resealability
Recommended for multiple injections
Operating temperature is the same as PTFE/silica gel
Provides good ventilation to prevent vacuum in the sample vial for excellent sample reproducibility
Eliminate clogging of the bottom needle after sampling
Good resealability
Recommended for multiple injections
Operating temperature is the same as PTFE/silica gel
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