Ahura first defender acquisition and application in the academic environment
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Ahura First Defender: Acquisition and Application in the Academic Environment. 2013 College and University Hazardous Waste Conference Kyle Dagestad Sean Whalen Iowa State University. Introduction. The Money - Sean The Selection - Sean The Equipment - Kyle The Goods and The Bads - Kyle

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Ahura First Defender: Acquisition and Application in the Academic Environment

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Ahura first defender acquisition and application in the academic environment

Ahura First Defender:Acquisition and Applicationin the Academic Environment

2013 College and University

Hazardous Waste Conference

Kyle Dagestad

Sean Whalen

Iowa State University


Introduction

Introduction

  • The Money - Sean

  • The Selection - Sean

  • The Equipment - Kyle

  • The Goods and The Bads- Kyle

  • Safety and Maintenance – Kyle


The money

The Money

  • Homeland Security Buffer Zone Program

    • Grant through ISU-Police

      • FTIR and RAMAN for unknowns

      • $82,500

    • Equipment only

      • Purchased the Ahura First Defender ($35,000) and Tru Defender ($47,500)

      • EH&S owns equipment

      • Tru Defender on loan to Ames Fire HAZMAT


The selection

The Selection

  • Two primary suppliers

    • Ahura Scientific

    • Smith’s Detection

  • Disclaimer

  • Representative Presentations

  • Field Tests

  • Matrix


Field tests

Field Tests

  • Two Unknown “Spills”

    • Citric Acid

    • Soda Ash

  • Lab Unknowns

    • Corrosives

    • Solvents

    • Metals

    • Mixtures


Field test

Field Test

Ahura

Smith’s

Provides options

Results

50% spill

47% unknowns

False Positives

Ketamine as TNT

Trimethylamine HCl as molybdenum oxide or propanol

  • Either Yes or No

  • Results

    • 50% spill

    • 73% unknowns

    • High fluorescence is biggest problem


Field test results

Field Test Results


Matrix

Matrix

  • Pointed out best unit

  • Ahura scored highest

  • Ahura more expensive

  • Had to write justification


The equipment

The Equipment

How does it work?

  • Raman Spectroscopy: Molecular “fingerprint” of the molecule

  • Class 3B laser excites the molecular bonds and scatters measurable light to identify unknowns

  • ISU Ahura library- 10,152


Why the ahura first defender

Why the AhuraFirst Defender?

  • Currently used by law enforcement, firefighters, and the military

  • Very durable (4 Feet & 1 Meter)

  • No calibration needed-confidence check

  • User friendly

  • Ahura Customer Support- 24/7- 365


Identification capabilities

Identification Capabilities

  • Drugs (illegal & prescription)

  • White powders

  • Inorganic compounds- (sulfuric acid, nitric)

  • Inorganic oxides- (rust, titanium dioxide)

  • Ionic compounds-(sulfates, phosphates)

  • Substances in water

  • Identifies through container


Identification limitations

IdentificationLimitations

  • No covalent bonds

  • Dark colored materials

  • Highly fluorescent materials- (dyes, ketchup)

  • The sun can disrupt scan

  • Most pure metals and elemental substances

  • Biologicals- confused by mix of proteins, and fats

  • Radiation, gasses, and vapors

  • Highly diluted substances


Safety

Safety

  • Follow your organization’s Laser Safety Protocols -Eyewear

  • Maintain 14” distance

  • Laser activated- don’t look into lens

  • NOT intrinsically safe


Maintenance

Maintenance

Cleaning

  • Water, alcohol, household bleach

  • Keep lens & nose cone clean

    Updating

  • Chemical library updates

  • “LibBuild Mode”

  • Good spectrum, but no match? Export- “Ahura Reachback”


Demonstration performance

Demonstration Performance

Point and shoot through a bottle?

No problem!

Why you shouldn’t scan dark colored materials video.


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