Analytical Guard Column Holder
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Analytical Guard Column Holder OEM Supplier
The HPLC column is an essential part of the HPLC system that warrants careful handling and protection. Frequent replacement of columns can be costly, so the goal should be to extend the useful life of the column to achieve consistent and accurate results every time.
Adding a guard column
The role of the guard column is to filter out the chemical “trash” from the mobile phase and the sample, and also to effectively remove the insoluble material from the mobile phase and the sample. Although chromatographs nowadays are equipped with filters of different pore sizes such as 1 and 2 μm in the mobile phase inlet, the back of the inlet valve and both ends of the column, the filters can only remove insoluble particles but not chemical contamination, therefore, the addition of a protective column is necessary, especially in the analysis of complex mixtures of traditional Chinese medicine, proprietary Chinese medicine and biological samples is an essential measure to protect the analytical column.
Guard column packing should be consistent with the analytical column, the particle size can be larger than the analytical column. Guard column is a consumable, after a certain number of sample analysis (50-100 times), there is a significant increase in column pressure or peak shape deterioration or baseline drift, should consider replacing the guard column.
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Main Features
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High precision
To prevent impurities and suspended solids from contaminating the analytical column, a guard column or cartridge is placed between the injector and the analytical column. Guard columns have an average length of 2 cm and an internal diameter of 4.6 mm. Their purpose is to safeguard analytical accuracy.
Wide range
The temperature measurement range of RS-WS-*-2-* temperature and humidity sensor are minus 40 degrees to 120 degrees, and the humidity range is 0~100%RH, which can meet the requirements of most users. Other measurement ranges can be achieved by replacing the probe.
Cheap price
professional OEM manufacturer, has been engaged in temperature and humidity sensor production for decades, and has a complete production line and patented technology. Our service tenet is to use professional technology to provide users with high-quality and cheap price sensors.
Long use life
temperature and humidity sensor can be used for 5 years in a normal environment, and our company provides buyers with a two-year warranty. It can be used in the outdoor environment for a long time. It is an industrial-grade temperature and humidity sensor.
Delivery fast
We have huge production lines and warehouses, which can quickly supply goods to agents at home and abroad. Large In-Stock, and we guarantee delivery within 24 hours after payment.
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High Quality HPLC Column 316L, 316 Stainless Steel Tube Materials
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Design New HPLC Columns 100% As Clients Request
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Make HPLC Column Samples And Test Before Mass Products.
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High Quality HPLC Column 316L, 316 Stainless Steel Tube Materials
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Design New HPLC Columns 100% As Clients Request
![](https://uhplcs.com/wp-content/uploads/2022/12/salesman-02.jpg)
Make HPLC Column Samples And Test Before Mass Products.
HPLC Column FAQ
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