Last update: October 6, 2020

Injection port septum
P/N Appearance Qty Remarks Applicable model Links Applicable models
221-76650-01 25 Thermogreen LB-2, green, low bleed, least amount of plasticizing agent TQ8040
TQ8050
TQ8030
QP2020
QP2010 Ultra
QP2010 SE
QP2010
QP2010 Plus
PARUM2
2025
2030
2014
2010 plus
201-35584 20 Silicone rubber, white, injection unit temperature: lower than 250℃ TQ8040
TQ8050
TQ8030
QP2020
QP2010 Ultra
QP2010 SE
QP2010
QP2010 Plus
PARUM2
2025
2030
2014
2010 plus
201-35584-84 200 Silicone rubber, white, injection unit temperature: lower than 250℃ TQ8040
TQ8050
TQ8030
QP2020
QP2010 Ultra
QP2010 SE
QP2010
QP2010 Plus
PARUM2
2025
2030
2014
2010 plus
221-48972-91 20 Long-life (LL), blue, low bleed, 450℃ max. TQ8040
TQ8050
TQ8030
QP2020
QP2010 Ultra
QP2010 SE
QP2010
QP2010 Plus
PARUM2
2025
2030
2014
2010 plus
221-48398-91 20 For HT high temperature, brown, low bleed, 450℃ max., low bleed under a high temperature and highly durable TQ8040
TQ8050
TQ8030
QP2020
QP2010 Ultra
QP2010 SE
QP2010
QP2010 Plus
PARUM2
2025
2030
2014
2010 plus

Note: The conditioned septum (P/N: 225-10164-93) is not currently available. Please use 221-35507-01.

Guide to select an injection port septum

Even when a low bleed septum is used, bleeding is not totally eliminated. The type of bleeding differs according to the septum type and bleeding appears as different peaks on a chromatogram. In high-sensitivity analysis, you need to select and use a septum that does not cause bleeding at a position where interference occurs with the target compound.
Use the information below as a guide.

Injection unit temperature is high (250 to 450℃). Low bleed (high-sensitivity analysis) Septum for HT high temperature
Low bleed septum is not required. Long-life septum
Injection unit temperature is lower than 250℃. Low bleed (high-sensitivity analysis) septum is required and durability is also important. Long-life septum
Small amount of plasticizing agent regardless of the injection unit temperature Thermogreen LB-2 septum

Supplementary keywords: septum, insert, ferrule, O-ring, Gas chromatograph, GC, GC-14A, GC14A, GC-14B, GC14B, GC-17A, GC17A, GC-1700, GC1700, GC-2010, GC2010, LL septum, HT septum, bleeding, Supelco