Measuring method of trace oxy-compound in liquid-phase propylene
A method of determination, liquid-phase propylene technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems such as the inability to measure or inaccurately measure the content of trace oxygen-containing compounds, and achieve the effect of stable gas absorption process and sufficient absorption
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[0027] 1. Experimental principle
[0028] This method adopts the liquid absorption method to collect, and the method of gas chromatography to determine the content of oxygen-containing compounds in propylene. Heat propylene at 120°C with a metal bath electric heating sampler, and then absorb oxygen-containing compounds in the sample with 100ml of deionized water. Under certain conditions, the absorbed sample is separated by gas chromatography. Various oxygen-containing compounds are combined with the stationary phase of the chromatographic column under the flow of the carrier gas. Due to the different degrees of separation of substances with different fixed phases, various oxygen-containing compounds are separated in the chromatographic column, and then pass through the flame ionization detector. (FID) was used to detect the content of each component, and the external standard method was used for quantification.
[0029] 2. Test equipment and reagents
[0030] Metal bath ele...
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