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由于丙烯酰胺中含有的有机杂质会极大地影响聚丙烯酰胺聚合产品的质量。为了用色谱法测定丙烯酰胺中的有机杂质,我们用402或401有机担体来测定沸点较低,极性较少的有机杂质;而用PEG20M柱子来测定极性较大的高沸点有机杂质。实践证明,测定结果满足了工艺要求。 (一)用402有机担体的测定方法色谱条件:柱长4米,内径4毫米不锈钢柱,由4根U形柱串联而成,内装上海试
Due to the organic impurities contained in acrylamide will greatly affect the quality of polyacrylamide polymerization products. In order to determine the organic impurities in acrylamide by chromatography, we use 402 or 401 organic supports to determine organic compounds with lower boiling point and less polarity. PEG20M columns are used to determine the higher boiling organic impurities with higher polarity. Practice has proved that the test results to meet the technical requirements. (A) Determination of organic carrier with 402 Chromatographic conditions: column length of 4 meters, 4 mm diameter stainless steel column, the four U-shaped column in series, built Shanghai test