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| 基于ZIF-L的微固相萃取技术测定地表水中痕量典型多环芳烃 |
| Determination of Trace Amount of Typical Polycyclic Aromatic Hydrocarbons （PAHs） in Water by ZIF L Micro Solid Phase Extraction |
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| DOI： |
| 中文关键词: 多环芳烃 ZIF-L 微固相萃取 高效液相色谱法 地表水 |
| 英文关键词: PAHs ZIF L Micro solid phase extraction HPLC Surface water |
| 基金项目:污染控制与资源化研究国家重点实验室开放基金资助项目(PCRRF17028)；中央高校基本科研业务基金资助项目(No：2018B57214)。 |
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| 中文摘要: |
| 制备类沸石咪唑酯骨架ZIF-L材料，将其用作微固相萃取吸附剂，处理水中萘、苊、苊烯、芴、菲、蒽、荧蒽、芘等8种痕量典型多环芳烃，再用HPLC测定。试验表明，ZIF-L对上述多环芳烃的萃取效率明显高于商品化萃取材料C18和多壁碳纳米管。方法在0100 μg/L~200 μg/L范围内线性良好，方法检出限为002 μg/L~003 μg/L，标准溶液5次测定结果的RSD为47%~95%，实际水样加标回收率为845%~115%。将该方法用于北太湖5个点位水样的测定,测定值为未检出~340 μg/L。 |
| 英文摘要: |
| Eight kinds of trace amount of PAHs (naphthalene, acenaphthene etc.) in surface water were extracted by zeolitic imidazolate framework ZIF L as micro solid phase adsorbent and determined by HPLC. The results showed that ZIF L had better extraction efficiency for these PAHs than the commercial extraction materials like C18 and multi walled carbon nanotubes. The method had a good linearity in the range of 0.100 μg/L to 200 μg/L, the method detection limits were in 0.02 μg/L~0.03 μg/L． The RSDs of the standard solutions by 5 times repeated 〖JP3〗measurement were in 4.7%~9.5%. The recoveries of spiked practical samples were in 84.5%~〖JP〗115%．The method was applied in five sampling sites in Northern Taihu Lake，the determination results were in not detected~3.40 μg/L. |
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