GsBP-EPOx1 chromatographic column

Introduction:PO-Epoxy propane is an important organic chemical product and also an important organic chemical raw material.POPurity and impurity analysis are particularly important, and their analytical method standard number is:GB/T 14491-2015The method usedPLOT UCapillary chromatography column, forPOSeparate impurities in the middle. The stationary phase of the chromatographic column is a porous polymer solid powder, which has its own solid properties Some characteristics and limitations.

This method adoptsGS-TekProduced byWCOTLiquid film capillary column was used to analyze and measure high concentration and low concentration standard samples, respectively The test results are as follows:

The specific analysis examples and detection results are as follows:

1. Determination of high concentration samples Test conditions:

Typical spectrogram:
Standard sample components and separation conditions:

2. Low concentration sample determination:

Typical spectrogram:

The components and concentrations of standard samples are shown in the following table:

explain:

1. The concentration values in the table are approximate concentrations, and the samples are configured internally in the laboratory and have not been calibrated.

2. Low concentration of propylene cannot be added to the sample, therefore there is no propylene component in this spectrum

3. EONo pure product, low concentration standard solution added, with lower concentration.

3. POSample analysis example:

The analysis method is the same as above Analyze the sample:

User providedPOSample, unknown impurity composition

Test results: Only a small amount of furan was detected without quantitative processing, and no other components were detected.

Test spectrum:
Results and Discussion:

1. useWCOTLiquid film capillary column, with stable performance, achieves the desired separation effect, small sample adsorption, and good peak symmetry, Beneficial for accurate quantification.

2. The high and low concentration samples have little effect on the separation degree,POAs a solvent background, the impact is minimal.

The separation degree comparison table is as follows:

3. GS-TEK POSpecialized columns have a longer service life compared toPLOTColumn; And it can be regenerated after pollution.

4. GS-TEK POThe dedicated column has a higher upper limit of operating temperature, up to260℃, high boiling point pollutants and polar compounds in the sample Minimize the impact.

5. In addition to the above data, some extension experiments were also conducted. By adding special analysis devices, it is possible toPOAnalyze formaldehyde in the medium, This chromatographic column can completely separate formaldehyde from other components.

Ordering Information

GsBP-EPOx1