500mg/500mg/6ml Gcb/Psa Spe Column for Gc LC Sample Preparation in Environmental Analysis

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I focus on the field of laboratory consumables.

I will mainly introduce our star product - the pretreatment SPE column.
In laboratory work, high-quality consumables are the key to ensuring accurate and efficient experiments.
And our SPE column, with its excellent performance and reliable quality, has become a powerful assistant for many researchers and laboratories.

Our SPE column has precise adsorption capacity and can effectively separate and enrich target compounds, greatly improving the accuracy and reproducibility of the experiment. Moreover, its operation is simple and saves time and labor costs.

Whether you are engaged in fields such as environmental monitoring, food safety testing, or drug research and development, our pretreatment SPE column can provide strong support for your experiments.
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The following information is a detailed introduction to the products we have elaborately crafted.
We sincerely welcome you to consult. No matter if you have any questions or need to further understand the characteristics and advantages of the products, our professional team will enthusiastically answer them for you and provide you with the most thoughtful and professional service

 

RayCure GCB/PSA cartridge is based on graphitized carbon and PSA as sorbents, able to remove pigments by GCB as well as anions by PSA,  mainly used in sample preparation of pesticide residues in agricultural products.

Similar to effect of RayCure GCB/NH2, the ion exchange capacity of PSA is twice that of NH2 as it has stronger ability of anion removal.

Select GCB/PSA when GCB/NH2 cannot remove impurities well. It is mainly used in preparation sample of pesticide residue analysis, to remove fatty acids in residual pesticides of foods.

HOW DOES SPE COLUMN WORK?

SPE is a conventional and efficient extraction technique, it uses the affinity of solutes dissolved or suspended in mobile phase for stationary phase to separate desired compounds from a mixture. And there are two solid phase extraction mechanisms to obtain target analytes from complex samples, to retain desired compounds in stationary phase or retain impurities in solid phase. Depending on the difference of two mechanisms, SPE procedures could be a bit various. 

When sample portion passes through SPE column, undesired impurities are discarded with mobile phase, target compounds are retained in stationary phase, then rinse stationary phase with eluents to collect target compounds. It is the most commonly used purification mechanism of solid phase extraction. 

In the opposite, to retain impurities in stationary phase, target compounds and few impurities are collected in mobile phase when sample portion passes through SPE column. Rinse the stationary phase which impurities is retained with solvents to obtain rest of retained target compounds. This mechanism is mostly used to eliminate fat-soluble impurities of ion analysis and analysis of multiple pesticides in fruits and vegetables.