【摘要】 目的探讨一次采样同时测定工作场所空气中盐酸、硫酸和氟化氢的方法。方法以多孔玻板吸收管采样,选择最佳仪器条件、合适的流动相,用离子色谱法测定盐酸、硫酸和氟化氢的含量。结果盐酸、硫酸、氟化氢的检出限分别为0.06、0.35、0.08mg/L,各物质的相对标准偏差均在4.36%以下,平均回收率在95.0%～102.2%之间。结论该方法操作简便,灵敏度高,精密度好。更多还原

【Abstract】 [Objective]To explore the simultaneous determination of hydrochloric acid,sulfuric acid and fluoride in workplace air by ion chromatography.[Methods]Hydrochloric acid,sulfuric acid and fluoride were adsorbed by porous glass tube and detected by ion chromatography with best instrument condition and suitable mobile phase.[Results]Determination limit of hydrochloric acid,sulfuric acid and fluoride was 0.06 mg/L,0.35 mg/L and 0.08 mg/L; the RSDs for 3 materials were all less than 4.63%; the recovery range was 95.0%~102.2%.[Conclusion]This method is simple,with high sensitivity and good precision.更多还原