| 品牌 | Restek | 型号 | Hydroguard Fused Silica Guard/Retention Gap |
产品特点:
保护柱的作用：•减少了污浊样品对柱子性能的影响.•减少了故障停机时间和维护.
• 防止严酷的“蒸汽清洗”式的水注入导致的柱子恶化，延长柱使用寿命.
• 使用温度: 430°C.
当吹扫捕集系统、大气监测设备或其他仪器的通道携带有蒸汽冷凝水时，去活的柱管会因为产生自由硅羟基而变得活泼。这些硅羟基吸附像乙醇和二醇这样活泼的含氧化合物。Restek化学家已着手解决这一问题，并找到了解决方案-- - Hydroguard ®去活处理。经一种独特的去活化学反应生成了一个不易起水解作用的高致密的表面。 这种高致密的表面覆盖了Hydroguard®去活涂层能够有效的阻止水蒸气渗透到熔融石英表面以下 。使用Hydroguard®柱管可连接GC主机到：
• 吹扫捕集系统.
• 顶空分析器.
• 大气检测设备和预浓缩装置.
• 其它能够捕集/热脱附水蒸气的仪器.
• 任何要求样品有惰性、疏水性的分析仪器.
订货信息:
| Description | Length | OD | qty. | Cat.# | ||||
| 0.05mm* | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.363 ± 0.012mm | ea. | 10075 | ||||
 | ||||||||
| 0.10mm* | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.363 ± 0.012mm | ea. | 10076 | ||||
| ||||||||
| 0.15mm | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.363 ± 0.012mm | ea. | 10077 | ||||
| ||||||||
| 0.18mm | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.37 ± 0.04mm | ea. | 10078 | ||||
| ||||||||
| 0.25mm | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.37 ± 0.04mm | ea. | 10079 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.37 ± 0.04mm | 6-pk. | 10079-600 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 10-Meter | 0.37 ± 0.04mm | ea. | 10082 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 30-Meter** | 0.37 ± 0.04mm | ea. | 10085 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 60-Meter**† | 0.37 ± 0.04mm | ea. | 10088 | ||||
| ||||||||
| 0.32mm | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.45 ± 0.04mm | ea. | 10080 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.45 ± 0.04mm | 6-pk. | 10080-600 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 10-Meter | 0.45 ± 0.04mm | ea. | 10083 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 30-Meter** | 0.45 ± 0.04mm | ea. | 10086 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 60-Meter**† | 0.45 ± 0.04mm | ea. | 10089 | ||||
| ||||||||
| 0.53mm | ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.69 ± 0.05mm | ea. | 10081 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 5-Meter | 0.69 ± 0.05mm | 6-pk. | 10081-600 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 10-Meter | 0.69 ± 0.05mm | ea. | 10084 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 10-Meter | 0.69 ± 0.05mm | 6-pk. | 10084-600 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 30-Meter** | 0.69 ± 0.05mm | ea. | 10087 | ||||
| ||||||||
| Hydroguard Fused Silica Guard Columns & Transfer Lines | 60-Meter**† | 0.69 ± 0.05mm | ea. | 10090 | ||||
| ||||||||
*因为存在一个大的压降，没有用格勒布试剂进行检测Not .
**30米和60米长度是按5米一节标记好的.
†建议：切割60m保护柱为较短的长度。使用全长的保护柱可能引起峰的变形。