Automation by Flow Injection
Solution handling is the most frequently performed task when performing chemical assays. It is still mostly performed by hand, although manual processing has numerous drawbacks: It is time- and labor intensive, inaccurate, uses large sample and reagent volumes, and inevitably lacks the kinetic information that often yields better information than end point measurements.
While FI eliminates these drawbacks through automation of simple tasks such as sample metering and reagent addition, FI is frequently applied for automation of “front end” sample preparation such as:
Gas Diffusion
Dialysis
Sorbent Extraction
Solvent Extraction
Sample Digestion
While these techniques have been successfully performed using cFI systems operated at constant flow rate, they will be, without doubt carried far more efficiently in the programmed flow injection mode (pFI).
1.1.3.
