产品特点：
GC 进样口刃环（石墨密封垫）
进样口刃环材质种类较多，100% 石墨材质具有渗透氧的功能，所以不建议用在如MS 这样的氧敏感型检测器，对于氧敏感型检测器( 如MS 或ECD 检测器)，推荐使用85%Vespel15% 石墨材质的刃环。根据色谱柱的内径选择合适的尺寸，能起到良好的密封作用。
100% Graphite Ferrules
Thermo Scientific 100% graphite ferrules are a soft material that is porous to oxygen, making them suitable for most applications except GC-MS interface connections. These easy-to-use ferrules form a soft grip with the column and provide a stable seal.
15% Graphite / 85% Vespel Ferrules
The mechanically robust 15% Graphite/ 85% Vespel ferrules have a long lifetime and are compatible with GC-MS. These ferrules form a strong grip with the column and cannot be reused as they form a permanent seal with the column. They have a temperature limit of 350°C, but must be re-tightened after initial temperature cycles.
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订货信息：
| 用于 Thermo 仪器的刃环 | ||||
用于 Thermo 仪器 | 材料类型 | 尺寸（色谱柱 ID）mm | 货号 | 包装 |
| Thermo Trace 1300/1310 SSL 进样口和非 MS 检测器 | 100% 石墨 | 0.1-0.32 | 290GA139 | 10/pk |
| 0.45-0.53 | 290GA140 | 10/pk | ||
| 85% Vespel/15% 石墨 | 0.1-0.25 | 290VA191 | 10/pk | |
| 0.32 | 290VA192 | 10/pk | ||
| 0.53 | 290VA193 | 10/pk | ||
| Thermo Trace Ultra SSL 进样口和非 MS 检测器 | 100% 石墨 | 0.1-0.25 | 29053488 | /pk |
| 0.32 | 29053487 | 10/pk | ||
| 0.53 | 29053486 | 10/pk | ||
| 85% Vespel/15%石 | 0.1-0.25 | 290VT186 | 10/pk | |
| 0.32 | 290VT187 | 10/pk* | ||
| 0.53 | 290VT188 | 10/pk* | ||
| Thermo MS 检测器 | 85% Vespel 石墨 | 0.1-0.25 | 29033496 | 10/pk |
| 0.32 | 29033497 | 10/pk | ||
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