Absorption-enhanced differential extraction device

A method for extraction of at least a portion of desired particles from a sample stream comprising said desired particles, said method comprising the steps of:

• a) introducing said sample stream into the sample stream inlet of an extraction device comprising:
• i) a sample stream inlet;
• ii) an extraction stream inlet;
• iii) an extraction channel in fluid communication with said sample stream inlet and said extraction inlet for receiving a sample steam from said sample stream inlet in adjacent laminar flow with an extraction stream from said extraction stream inlet;
• iv) a sequestering material within said extraction channel for capturing desired articles in said extraction stream;
• v) a by-product stream outlet in fluid communication with said extraction channel for receiving a by-product stream comprising at least portion of said sample stream from which desired particles have been extracted;
• and
• vi) a product outlet in fluid communication with said-extraction channel for receiving a product comprising said sequestering material and at least a portion of said desired particles;
• b) introducing an extraction stream into the extraction channel of said extraction device;
• and
• c) introducing into said extraction channel a sequestering material for capturing the desired particles such that the desired particles are captured by the sequestering material.