During the ion chromatography analysis, impurity interfering substances, organic matter or metal ions are often present in the sample.
SH series pretreatment column
During the ion chromatography analysis, impurity interfering substances, organic matter or metal ions are often present in the sample, which will contaminate the main filler of ion chromatography, resulting in poisoning of column fillers, reducing the separation capacity and service life of the chromatography column, and impurity ions will also interfere with the separation of target ions.
Using the sample pretreatment column, the principles of reverse phase adsorption and ion exchange can effectively remove organic matter and impurity ions in the sample.
The impact of impurities on the contamination of ion columns and on the separation effect is avoided. Effectively extend the service life of the chromatographic column and improve sample separation effect.
| Model | Removal Mechanism | Application |
| SH IC-C18 | reverse phase adsorption | Remove hydrophobic compounds, not suitable for samples with high or low pH |
| SH IC-RP | reverse phase adsorption | Remove hydrophobic compounds, especially unsaturated and aromatic compounds, and tolerate PH ranges of 0-14 |
| SH IC-H | ion exchange | Remove alkaline earth metal ions, transition metal ions and carbonate ions from the sample matrix, and is also used to neutralize strong alkalinity in the sample solution. |
| SH IC-Na | ion exchange | Remove alkaline earth metal ions and transition metal ions from the sample matrix |
| SH IC-Ag | ion exchange | Remove CL-, Br-, I-, GrO42-, PO43-, S2-, SCN-plasma |
| SH IC-Ba | ion exchange | Remove SO42-, and CL-solution activation is required when the anion concentration in the sample is low |
| SH IC-HCO3 | ion exchange | Remove anionic contaminants and neutralize the sample with strong acidity |
| SH IC-Ag/H | ion exchange | Function equivalent to the use of Ag column and H column in series |
| SH IC-Ag/Na | ion exchange | Function equivalent to the tandem use of Ag column and Na column |
| SH IC-Ba/H | ion exchange | Function equivalent to the series use of Ba column and H column |
| SH IC-M | Chelation mechanism | Removal of transition metals, alkaline and alkaline earth metals |
Advantages
High selectivity: Highly selective removal can be achieved for different types of interfering substances, ensuring the accuracy and specificity of subsequent ion chromatography analysis.
Good stability: High-quality fillers and advanced production processes are used to make the pretreatment column stable during multiple uses and maintain consistent processing results.
Strong compatibility: It can be well compatible with various ion chromatography models of Qingdao Shenghan and some ion chromatography equipment from other brands, and has a wide range of applicability.
