Rapid quantitative detection method for polycyclic aromatic hydrocarbons in surface water
A quantitative detection method and polycyclic aromatic hydrocarbon technology, applied in the detection field, can solve the problems of limited application and long extraction time, and achieve the effects of improved accuracy, short extraction time and high detection accuracy
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[0067] 2.2. Example 2
[0068] The difference from embodiment 1 is that the ultrasonic sealing and stirring time in e in step ① of this embodiment is 20 minutes.
Example Embodiment
[0069] 2.3. Example 3
[0070] The difference from embodiment 1 is that the ultrasonic sealing and stirring time in e in step ① of this embodiment is 25 minutes.
[0071] 2.4. Example 4
[0072] The difference from Example 1 is that in step ① of this example, three 10 mm×0.5 mm PDMS coated solid phase extraction stirring rods are used in b.
[0073] 2.5. Example 5
[0074] A rapid quantitative detection method for polycyclic aromatic hydrocarbons in surface water, including the following steps:
[0075] ①, PAHs extraction
[0076] a. Accurately measure 500mL water sample and place it in a 1L conical flask;
[0077] b. Put two 10mm×0.5mm and one 20mm×0.5mm PDMS coated solid phase extraction stirring rods in the thermal desorption tube of the thermal desorption module, and age them at 280°C for 60 minutes;
[0078] c. Adsorb the aged solid phase extraction stirring rod in step b on the cleaned PTFE magnetic stirrer, then place it in the conical flask in step a and seal the conical flask with ...
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