MS-Pure Septum: Pigment free Silicone Septum With the increasing sensitivity of GC‘s and HPLC‘s there is an increased need for low bleed
Evaluation of overall bleed characteristics using gas chromatography |
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| MS-Pure Septum Natural (non-pigmented) Silicone/Natural PTFE 1 mm thick |
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| Competitor Septum White Silicone/Red PTFE 1 mm thick |
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| HPLC Low Bleed Version Competitor W-Clear Silicone/Clear PTFE (probably FEP or ETFE) 1 mm thick |
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| Bleed Comparison Between Natural and Red PTFE Sample Using Gas Chromatography Intuitively, one would surmise that pigmented materials (i.e. those that are coloured in some way) would be more likely to pose as a contaminant source when compared to materials that are not pigmented. This study compares two (2) 0.01 mm thick samples of PTFE. One is red in colour and the other is non-pigmented or natural. The Total Peak Area illustrates that the Natural (non-pigmented) PTFE shows a value of (0) zero, while the Red PTFE yielded a total peak area of 315. Using lower bleed materials provides truer readings, eliminates another potential error source, decreases sample contamination, and improves productivity. |
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| Blank (total Peak area = 0) | Natural PTFE Sample (total Peak area = 0) | Red PTFE Sample (total Peak area = 315) | |
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| MS-Pure Silicone/PTFE Septum |
| MS-Pure Silicone/PTFE
Tabular View |
| Aluminium
Crimp Cap |
| Snap Cap |
| Narrow Mouth
Screw Cap |
| Agilent compatible
Screw Cap |
| Wide Mouth
Screw Cap |
| Headspace
Crimp Cap |