slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
0 1 2 0 1 2 PowerPoint Presentation
Download Presentation
0 1 2 0 1 2

Loading in 2 Seconds...

play fullscreen
1 / 1

0 1 2 0 1 2 - PowerPoint PPT Presentation


  • 101 Views
  • Uploaded on

Column or fused silica capillary tubing inside 1/16” PEEK. tubing that is covered in heat tape and insulation. Column or. ArSLID. fused silica capillary. tubing. Nitrogen. Beam. Copper. (10 cm focal length). stop. Laser beam. (+300 V). (266 nm). + 300 VDC battery. Plano-convex lens.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '0 1 2 0 1 2' - heaton


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Column or fused silica capillary tubing inside 1/16” PEEK

tubing that is covered in heat tape and insulation

Column or

ArSLID

fused silica capillary

tubing

Nitrogen

Beam

Copper

(10 cm focal length)

stop

Laser beam

(+300 V)

(266 nm)

+ 300 VDC battery

Plano-convex lens

Loop

Laser

HP-5

injector

H

(266 nm)

column

E

RASE system

L

I

Connection to

U

Varian 3700 GC oven

M

electrometer

HP 3600 Series II Integrator

Collector

Ceramic

electrode

base

Rapid Measurements Using an Aromatic Specific Laser Ionization Detector (ArSLID)Anthony J. Borgerding1, Gregg Scheiffer1, Melissa J. Meyer2, Orven J. Swenson31University of St. Thomas, Dept. of Chemistry, St. Paul, MN, 2University of North Dakota, Grand Forks, ND; 3North Dakota St. Univ. Fargo, ND

  • Benefits
  • Simple, Inexpensive
    • ~$9K for laser
    • No vacuum pumps
    • Simple electrometer for
    • signal amplfication
  • Small Size
    • “Shoebox” laser
    • < 30 cm laser path
  • Selective for Aromatics
  • Sensitive
  • Aromatic Specific Laser Ionization Detector
  • What is it?
    • Atmospheric Pressure REMPI
    • (Resonance-Enhanced MultiPhoton Ionization)
    • Ions are focussed onto collector wire
    • Signal is Amplified and Recorded

Detector Cell

Instrumental Setup

0 1 20 1 2

Time (min)

  • Instrumental Details
  • Laser
    • Dimensions:
      • Head: 4 cm x 3 cm x 14 cm
      • Power supply: 10 cm x 12 cm x 16 cm
    • 8 kHz
    • 266 nm
    • ~4 mJ / pulse
    • JDS Uniphase (San Jose, CA)