PHOTOVAC, Inc.

Voyager Gas Chromatograph

ConceptConcept

PHOTOVAC, Inc.

Voyager BasicsVoyager Basics

• Truly portable– Only 15 pounds (6.8kg) with battery installed– 15.4” (39cm) long x 10.6” (27cm) wide x 5.9” (15cm) high

• Multiple Column, Dual Detector Portable GC– 3 Columns (Heavy, Middle, and Light Compounds)– PID (Photoionization Detector) and optional ECD (Electron Capture

Detector)

• 3 Levels of Instrument Operation– Factory programmed methods– User modified methods– Total VOC quick screen mode

• Intrinsically Safe (Class 1, Division 1, Groups A,B,C & D)– The only portable GC with this classification

PHOTOVAC, Inc.

Voyager BasicsVoyager Basics

• Completely self-contained– Internal carrier gas cylinder– Oven– Battery

• Internal data logger– On-board data handling provides immediate results – No laptop needed in field

• Comprehensive Windows software for data download and reports

• Easy to use– Minimal training required for point & press operation

PHOTOVAC, Inc.

• Carrier Gas: – High Purity Nitrogen or Ultra Zero Air – Carrier Life: 8 hours at 1800 psi– Carrier Flow Control via Software (Pressure)

• Column Oven: – Isothermal 55oC to 80oC– Higher temperatures help clean out columns and avoid

contamination

• Detector & Injection Port Heated to Column Temperature

• Two Sampling Methods– Variable Volume Sample Loop – Syringe Injection

Voyager ChromatographyVoyager Chromatography

PHOTOVAC, Inc.

Voyager ChromatographyVoyager Chromatography

• Benefits of the 3 column set– Overlapping selectivities cover

• Heavy compounds (C7 to C12)• Middle compounds (C3 to C7)• Light compounds (C1 to C3)

• Simplified method development• Columns do not degrade

• Vapor phase injections only• Moderate temperatures with no ramping

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Carrier Gas (N2)

Pre-Column

Column A

Column B

Column C Make-Up Carrier Gas

PID

ECD

Precolumn: 4m x 0.53mm x 2.0 um SPB-35Column A (HEAVY): 8m x 0.25mm BLANK Fused Silica Column B (MID-RANGE): 20m x 0.32mm x 1.0 um Supelcowax10 (PEG)Column C (LIGHT): 15m x 0.32mm x 12 um Quadrex 007-1

70%

30%

Column Scheme: Voyager GC Assay # 1Column Scheme: Voyager GC Assay # 1

PHOTOVAC, Inc.

Precolumn: 2.5m x 0.53mm x 2.0 um SPB-35Column A (Heavy): 8m x 0.32mm BLANK Fused Silica Column B (Mid-Range): 20m x 0.32mm x 1.5 um Supelcowax 10 (PEG)Column C (Light): 1.2m x 1.6mm 1% SP1000 on 60/80 Carbopack B

Precolumn

Column A

Column B

Column C

PID

Carrier Gas(N2 or UZ Air)

Column Scheme: Voyager GC Assay # 2 - 7Column Scheme: Voyager GC Assay # 2 - 7

PHOTOVAC, Inc.

Voyager AssaysVoyager Assays

• Target Compounds grouped into Assays (1-7)• Each Assay includes

– GC Method

– Integration Settings

– Compound Library

• Assay 1 Environmental Assay– Most comprehensive with 40 compounds

• Assay 2-7 Occupational Health and Safety– Targeted by industry segment

PHOTOVAC, Inc.

Assay #1 Environmental Assay #1 Environmental Compound ListCompound List

Chloromethane

Vinyl Chloride

Bromomethane

Chloroethane

Methylene Chloride

1,1-Dichloroethylene

Acetone

Carbon Disulfide

Vinyl Acetate

t-1,2-Dichloroethylene

Methyl Ethyl Ketone

c-1,2-Dichloroethylene

Chloroform

1,1,1-Trichloroethane

1,1,2-Trichloroethane

Dibromochloromethane

Chlorobenzene

Ethylbenzene

m-Xylene

p-Xylene

o-Xylene

Styrene

Bromoform

1,1,2,2-Tetrachloroethane

1,3-Dichlorobenzene

1,4-Dichlorobenzene

1,2-Dichlorobenzene

Carbon Tetrachloride

Benzene

1,2-Dichloroethane

Trichloroethylene

2-Chloroethyl Vinyl Ether

1,2-Dichloropropane

Bromodichloromethane

Methyl Isobutyl Ketone

c-1,3-Dichloropropene

Toluene

t-1,3-Dichloropropene

2-Hexanone

Tetrachloroethylene

PHOTOVAC, Inc.

Assay #4: ABS Rubber- Acrylonitrile- 1,3-Butadiene- Styrene

Assay #5: Pulp & Paper

- Hydrogen Sulfide- Methyl Mercaptan- Ethyl Mercaptan- Dimethyl Sulfide (DMS)- Dimethyl Disulfide (DMDS)- Acetone- Methyl Ethyl Ketone (MEK)- a-Pinene- Methanol

Assay #2: Petroleum and Petrochemical- Methanol- Ethanol- MTBE- TAME- Benzene- Toluene- Ethylbenzene- m-, o-Xylenes- Naphthalene

Assay #6: Surfactant Manufacture - Ethylene Oxide- Propylene Oxide

Assays #2-7: Occupational Health & SafetyAssays #2-7: Occupational Health & Safety

Assay #7: Latex Paint Monomers- Methyl Acrylate- Methyl Methacrylate- Ethyl Acrylate- n-Butyl Acrylate- iso-Butyl Acrylate- Acrylic Acid- Vinyl Acetate- Ethylene- Styrene

PHOTOVAC, Inc.

Assay CustomizationAssay Customization

• Preprogrammed assays can be customized in the SiteChart software for specific applications

• Existing assays are modified by adding or deleting compounds

• Full control of all hardware and software methods development and calibration parameters

• Customized assays are then sent to Voyager from the PC