• Accelerated Solvent Extraction (ASE):
• According to the Clausius-Clapeyron relation, increasing hydrostatic pressure elevates the boiling point of liquids.
• Accelerated Solvent Extraction (ASE) (also known as Pressurized Liquid Extraction, PLE) utilizes high pressures ($10-20\text{ MPa}$ / $1500-3000\text{ psi}$) to maintain liquid extraction solvents at elevated temperatures ($100-200^\circ\text{C}$) well above their atmospheric boiling points, drastically accelerating extraction kinetics and solute desorption from solid matrices.
• Conclusion: The principle is utilized in Accelerated Solvent Extractor (Option 2).

Correct option: (2) Accelerated solvent extractor

• Calculation of Serial Solution Dilution:
• Initial Stock Solution:

$$\text{Concentration} = \frac{10\text{ mg}}{1\text{ mL}} = 10\text{ mg/mL} = 10,000\text{ mg/L} = 10,000\text{ ppm}$$

• Dilution: Diluting this stock solution 1,000 times ($1:1000$ dilution factor):

$$\text{Final Concentration} = \frac{10,000\text{ ppm}}{1,000} = 10\text{ ppm}$$

• Conclusion: Final concentration is $10\text{ ppm}$ (Option 3).

Correct option: (3) 10 ppm