1 Global FIA Some Technology Concepts for Reliable Sampling

2 Topics Supported Capillary Membrane Sampler In-Line Filter Probe Zone Fluidics

3 Supported Capillary Membrane Sampler

4 Supported Capillary Membrane Sampler (Operating Principle) SCMS Probe in Process Stream or Fast Loop Flow. Pervaporation of target molecules through membrane tube walls. Uptake of target VOC molecules into flowing carrier gas. Transport to analytical finish.

5 Supported Capillary Membrane Sampler (Flowcell)

6 Supported Capillary Membrane Sampler (In-Line)

7 Supported Capillary Membrane Sampler (Mud-Logging)

8 Supported Capillary Membrane Sampler (Conclusion) The SCMS can increase the reliability of sampling for many VOC’s by a factor of 10 to 100X compared to sparging and similar techniques. The SCMS is not a panacea. There are some molecules that don’t partition into the membrane material—research into other membrane materials is needed.

9 InLine Filter Probe

10 Inline Filter Probe (Operating Principle)

11 Inline Filter Probe (Ferric Hydroxide)

12 Inline Filter Probe (Ferric Hydroxide)

13 Inline Filter Probe (Dow Brine)

14 Inline Filter Probe (Cyanide Analyzer)

15 Inline Filter (New Science?) To date, we haven’t found a sample that will irreversibly clog the filter elements, once a suitable backwash interval is identified. It appears to take longer to irreversibly plug a filter pore than it does to backwash it.

16 Zone Fluidics A general-purpose method of fluidic control and manipulation for sampling and/or analysis. An extension and expansion of Sequential Injection Analysis.

17 Zone Fluidics (Hardware)

18 Zone Fluidics (Solvent Extraction) SYRINGE PUMP SELECTION VALVE SEPARATION CELL DETECTOR W Org S BEAIPAAir

19 Solvent Extraction

20 Zone Fluidics/Solvent Extraction Solvent Extraction is only one example illustrating that Zone Fluidics allows the complete automation of very complex fluidic operations with compact, simple, and reliable hardware.

21

22 Conclusions Supported Capillary Membrane Extraction increases sampling reliability for VOC’s by at least 10X. In-Line Filter Probe promises a similar increase in reliability for matrices requiring liquid analysis. Zone Fluidics provides a potential platform allowing complete automation of all fluidics functions. All of the above techniques have potential for incorporation into N.E.S.S.I.