DPS Environmental GC Systems - Application Notes


    Each of these Environmental Applications can be analyzed using one, or more of the Custom GC configurations of the Series 600 Lab GC. However, the vast majority can also be analyzed using the Companion 1, or the Companion 2 Portable GC Systems.  Above all, each of these Custom GC Systems gives the same great results. So, whether your analyzing in the Lab, or in the factory, or out in the field, you can rest easy knowing that your Environmental results will always be consistent.

Air Analyzers

     When you need the lowest level air analyses possible count on the Air Analyzers from DPS Instruments. All of our Air Analyzers include detectors tuned to their highest sensitivity and the largest dynamic range. For your convenience, we build the Air Concentrator right into the system. We include an electronically controlled vacuum pump with a flow controller for precise and reproducible air sampling, a microelectronic sampling valve, and an adsorbent trap. The Series 600 GC is ideal for analyses in the lab, or use the Portable Companion 2 GC Systems for analyses right where the samples are taken. Common configurations include a FID for hydrocarbons, PID for aromatics such as Benzene, and the ultra-sensitive BCD for chlorinated compounds. A combination of detectors covers most environmental methods. The fast heating and rapid cooling column oven in every DPS GC vastly increases your sample throughput. Fully integrated Air GC Analyzer Systems are small and lightweight and all Environmental DPS systems are modular for expandability, upgrades, and easy service.
Example Compounds:
Benzene
Light Hydrocarbons
Chlorinated Solvents
BTEX Compounds
Alkanes
Alkenes
Alcohols
Aldehydes
Ketones
etc.

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View BTEX in Air Video

Diesel Range Organics

     Diesel has been used for heating homes and as a fuel for trucks and engines for over 100 years. Diesel is not environmentally friendly when it leaks out of holding tanks and seeps into the soil and subsequent groundwater. Modern double layer tanks have a built-in second containment system to handle leaks and these have been installed underground in many areas. However, many older tanks are still in existence and these are prone to leaks causing local contamination and the need for thousands of sample analyses per year. For your convenience, DPS has configured the Diesel Range Organics Analyzers to help you define the extent of the contaminant plume as well as assist you in determining the age of the spill. A sensitive FID detector is ideal for identifying the hydrocarbon backbone found in Diesel and the fast heating and rapid cooling column oven in every DPS GC vastly increases your sample throughput. The fully integrated Diesel Range Organics GC Analyzer Systems are small, lightweight, and rugged to go where ever you need them. All Environmental DPS systems are modular for expandability, upgrades, and easy service.
Example Compounds:
C12- C20 Hydrocarbons
Aromatics
Parafins
Naphthenes

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Disinfection By-products

     We all want clean water to drink for ourselves and our kids. The lakes, streams, springs, and wells that are the source of our drinking water have naturally occurring organic compounds from plant decomposition and contaminants from man made sources. When distribution companies and water treatment plants add chlorine or other disinfectants to purify the water, disinfection by-products are formed that can be harmful to human health. The most common of these are Trihalomethanes, such as Chloroform. However, Haloacetic Acids, Chlorophenols, and other chlorinated and brominated compounds can be formed. Water companies go to great lengths to reduce the concentrations of these harmful by-products, but they are always present. The Disinfection By-products GC Analyzers from DPS use the nonradioactive BCD detector to identify these by-products in the low part per billion (ppb) range. Fully integrated Disinfection By-products GC Analyzer Systems are small and lightweight and all Environmental DPS systems are modular for expandability, upgrades, and easy service.
Example Compounds:
Chloroform
1,1,1-Trichloroethane
Carbon Tetrachloride
Trichloroacetonitrile
Trichloroethylene
Bromodichloromethane
Chloral Hydrate
Dichloroacetonitrile
1,1-Dichloro-2-Propanone
1,1,2-Trichloroethane
Chloropicrin
Dibromochloromethane
1,2-Dibromomethane
Tetrachloroethylene
Bromodichloroacetonitrile
1,1,1-Trichloro-2-Propanone
Bromoform
Dibromoacetonitrile
1,2,3-Trichloropropane
4-Bromofluorobenzene
1,2-Dibromo-3-Cloropropane

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Environmental Pollutants

     Some of the millions of gallons of chlorinated solvents used in industry over the years have spilled, polluting our air, soil, rivers, lakes, streams, and ground water. Environmentally conscious legislation has been passed in many parts of the world to limit future spills, clean up existing polluted sites, and lessen the overall risk to ourselves and to our children. DPS has configured a full range Environmental GC analyzers to assist in the detection of common pollutants. All of these Environmental GC Systems allow direct injection of sample extracts. However, We have also added a built-in Air Concentrator and Purge & Trap for low ppb level analysis of air, water, or soil samples all in one GC. The Series 600 GC is for analyses in the lab, or the Portable Companion 2 GC Systems are for analyses right where the samples are taken. The FID detector is sensitive to hydrocarbons, which can assist in defining the source of the pollutant, the PID is very sensitive to aromatics such as Benzene, and the BCD is ultra-sensitive to chlorinated compounds. A combination of detectors covers most environmental methods. All Environmental DPS GC systems are small, lightweight and modular for expandability, upgrades, and easy service.
Example Compounds:
Chlorinated Solvents
BTEX Compounds
Alkanes
Alkenes
Alcohols
Brominated Compounds
Aldehydes
etc.

View pdf

Explosives

     Since the Chinese first mixed gun powder, people have been devising ways of harnessing it’s power to move mountains in the name of progress, or to keep enemies at bay. For more than a century many parts of the world have been littered with un-exploded ordinances. Bombs, shells, and land mines create a current and future threat to ourselves and our kids. DPS has configured the Explosives Analyzers to identify the nature and type of explosive. We have specifically designed the portable and rugged Companion 1 GC to help detect explosives in the field. The sensitive TID detector is ideal for identifying the nitrosamines and nitro-aromatic compounds responsible for the deadly nature of the ordinances. The fast heating and rapid cooling column oven in every DPS GC vastly increases your sample throughput. Fully integrated Explosives GC Analyzer Systems are small, lightweight, and rugged to go where ever you need them. All Environmental DPS systems are modular for expandability, upgrades, and easy service.
Example Compounds:
2,6-Dinitrotoluene
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1,3-DinitroHI2,4ext/sp/span left;">2,6-DinitrotoHexaSyste-tsp/span-tspazi;">2,6-Dinitroto4-Ateco-4extdp/span left;">2,6-Dinitroto2-Ateco-2extdp/span left;">2,6-Dinitroto/sp/spanphenylm>
2,6-DinitrotoOctaSyste-thane/span-te-potzocect> etc.

View pdf

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