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建立了以玻璃纤维膜-KB120气溶胶采样器采集大气中甲磺酸的采样方法;以0.1mmol·l~(-1)H_3BO_3/0.1mmol·l~(-1)Na_2B_4O_7为淋洗液的甲磺酸离子色谱分析方法.分析方法的精密度和准确度分别为5%和4%.并实测了青岛冬季大气气溶胶中MSA,SO_4~(2-)和NO_3~-的平均浓度分别为0.10μg·m~(-3),30.40μg·m~(_3)和17.98μg·m~(-3).
A sampling method was established for collecting methanesulfonic acid in the air with a fiberglass membrane-KB120 aerosol sampler. A sample of 0.1 M NaOH, Na_2B_4O_7 with 0.1 mmol·L -1 H_3BO_3 / 0.1 mmol·L -1 Na_2B_4O_7 The results showed that the precision and accuracy of the analytical method were 5% and 4%, respectively.The average concentration of MSA, SO_4 ~ (2-) and NO_3 ~ in winter aerosols in Qingdao was measured to be 0.10 μg · m ~ (-3), 30.40μg · m ~ (_3) and 17.98μg · m ~ (-3) respectively.