毛细管柱气相色谱法测定工作场所空气中环己酮
发布时间：2018-09-10 14:05
【摘要】：目的建立工作场所空气中环己酮的毛细管柱气相色谱测定方法。方法采用活性炭管采集空气样品,以二硫化碳解吸,经FFAP毛细管色谱柱分离后,以火焰离子化检测器检测,标准曲线法定量。结果环己酮在质量浓度为10.00~1 000.00 mg/L时呈线性关系,相关系数为0.999 9,检出限和定量下限分别为1.31和4.37 mg/L,最低检出浓度和最低定量浓度分别为4.37和13.11 mg/m~3(以采集1.5 L工作场所空气计算);平均解吸效率为95.80%~97.88%。批内、批间相对标准偏差分别为0.52%~3.12%和3.28%~4.75%。样品在室温下可保存7 d。结论本方法操作简单、准确度高,适用于大批量样品的测定。
[Abstract]:Objective to establish a capillary column gas chromatography method for the determination of cyclohexanone in workplace air. Methods the air samples were collected by activated carbon tube and desorbed by carbon disulfide. The samples were separated by FFAP capillary column and detected by flame ionization detector. Results there was a linear relationship between cyclohexanone and cyclohexanone at 000.00 mg/L. The correlation coefficient was 0.999, the detection limit and the lower limit of quantification were 1.31 and 4.37 mg/L, respectively, the minimum detectable concentration and the minimum quantitative concentration were 4.37 and 13.11 mg/m~3, respectively, and the average desorption efficiency was 95.80 and 97.88, respectively. The relative standard deviations between batches were 0.52% and 3.28%, respectively. The samples can be preserved for 7 days at room temperature. Conclusion this method is simple, accurate and suitable for the determination of mass samples.
【作者单位】： 武汉科技大学医学院公共卫生学院"职业危害识别与控制"湖北省重点实验室;
【分类号】：O657.71;R134.4
本文编号：2234656
[Abstract]:Objective to establish a capillary column gas chromatography method for the determination of cyclohexanone in workplace air. Methods the air samples were collected by activated carbon tube and desorbed by carbon disulfide. The samples were separated by FFAP capillary column and detected by flame ionization detector. Results there was a linear relationship between cyclohexanone and cyclohexanone at 000.00 mg/L. The correlation coefficient was 0.999, the detection limit and the lower limit of quantification were 1.31 and 4.37 mg/L, respectively, the minimum detectable concentration and the minimum quantitative concentration were 4.37 and 13.11 mg/m~3, respectively, and the average desorption efficiency was 95.80 and 97.88, respectively. The relative standard deviations between batches were 0.52% and 3.28%, respectively. The samples can be preserved for 7 days at room temperature. Conclusion this method is simple, accurate and suitable for the determination of mass samples.
【作者单位】： 武汉科技大学医学院公共卫生学院"职业危害识别与控制"湖北省重点实验室;
【分类号】：O657.71;R134.4
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