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目的比较高效液相色谱法与紫外分光光度法测定复方邻苯二甲醛消毒液含量的准确性。方法分别采用高效液相色谱法和紫外分光光度法对邻苯二甲醛水溶液和复方邻苯二甲醛消毒液进行含量测定。结果高效液相色谱法测定的邻苯二甲醛水溶液和复方邻苯二甲醛消毒液中的邻苯二甲醛含量均与实际值相符,而紫外分光光度法测定邻苯二甲醛水溶液能获得满意结果,测定复方邻苯二甲醛消毒液中的邻苯二甲醛含量测定值要远高于实际值。结论高效液相色谱法更适合测定复合消毒产品中邻苯二甲醛的含量。
OBJECTIVE To compare the accuracy of compound ortho-phthalaldehyde disinfectant with high performance liquid chromatography and ultraviolet spectrophotometry. Methods The content of o-phthalaldehyde solution and compound ortho-phthalaldehyde disinfectant were determined by high performance liquid chromatography and ultraviolet spectrophotometry respectively. Results The content of o-phthalaldehyde in o-phthalaldehyde solution and compound O-phthalaldehyde disinfectant measured by HPLC was in agreement with the actual value, while the satisfactory results were obtained by UV-spectrophotometry in o-phthalic-formaldehyde solution. Determination of compound o-phthalaldehyde disinfectant in the determination of o-phthalaldehyde content is much higher than the actual value. Conclusion High performance liquid chromatography is more suitable for the determination of phthalaldehyde in composite disinfection products.