Capillary columns are not being packed into the cavity and the column has the stationary phase coating its inner surface. To analyze samples for the individual chemical compounds capillary GC columns are used. As compared to a packed column a capillary GC column has a more efficient separation of the sample and by introducing too much of the sample, it is more easily overloaded. The GC capillary columns are different in size.
The Capillary column is further divided into two parts:
WCOT: It is known as wall-coated open tubular columns which came with a liquid stationary phase. This is coated inside its walls.
SCOT: It is known as Support-Coated Open Tubular Columns that don’t include a direct coating of stationary phase on walls. There is a support material lined on the walls of the column such as diatomaceous earth. The material is absorbed by the stationary phase.
As compared to the WCOT type of capillary column the support material in SCOT usually decrease SCOT.
The higher resolution always makes the columns better. But they are a little expensive and their separation compatibility makes the price worth it.
How to choose a capillary column?
It’s important to understand the difference between a capillary column and a packed column. The columns are compared based on convenience and their selection is very confusing.
So you can choose them based on:
- Sample
There is no need for large sample injections as detectors come with high sensitivities. So first preference should be capillary columns.
- Cost
The resolution efficiency is lower in the capillary column and the column bleed is large.
- Resolution Power
Leading to the desired separation between closely spaced peaks capillary columns provide better resolution.
- Time-saving
To increase laboratory throughput capillary column is very helpful. It increases the number of samples that can be analyzed.
GC equipment supplier
GC equipment supplier uses helium, hydrogen, and other gases to separate, identify and quantify sample mixtures. The is the best technique for the food, environment, and chemical industries. GC equipment is a separation technique that can be applied to every industry. It is a highly sought-after laboratory technique for manufacturers, as a non-destructive and versatile analysis method. Find out the best GC equipment supplier.
- Pharmaceutical industry
To detect any impurity or contaminants in medicines gas chromatography is ideal. The accuracy and consistency are crucial in the pharmaceutical industry. Manufacturers used it to detect the chemical components of drugs and what their medicines consist of. Within the pharmaceutical industry, the separation technique is highly used.
- Chemical Industry
To analyze the product for contaminants, impurities, and inconsistencies chemical industry uses gas chromatography. With this technique, the chemical manufacturers obtain exact quantities of the components. GC equipment also ensures the safety of products and lower the risk of defective products. To identify the biomarkers in crude oil gas chromatography can be used.
Conclusion
Visit quadrexcorp if you are searching for a Capillary column. Contact us anytime and we feel happy to help you.
Quadrexcorp 