Our Instrumentation includes FTIR, DSC, TGA, ICP, IC, HPLC
and GC.

Fourier Transform Infrared Spectrometer (FTIR)

The FTIR spectrometer is used to identify unknown organic materials by measuring the
microscopic interaction of IR spectrum with the chemical nature of the unknown through
a process of absorption and results in a pattern called IR spectrum.  This spectrum is
unique to each chemical and acts like a molecular fingerprint.   

 Digilab Excalibur (FTS3000) FTIR

Differential Scanning Calorimetry (DSC)

Differential Scanning Calorimetry measures the heat flow into and out of a material as a
function of time or temperature. This technique can be used to characterize thermal
transitions and chemical reactions.

A DSC analysis of an unknown yields information such as;
•        Glass transition temperature (Tg)
•        Melting points
•        Crystallization
•        Heats of fusion and reaction
•        Specific heat and heat capacity
•        Rate of cure
•        Reaction kinetics
•        Purity

    TA Instruments DSC 2910 with Autosampler and Refrigerated Cooling Accessory

Thermogravimetric Analysis (TGA)

TGA measures weight changes with temperature and time and provides information
about composition and thermal stability. A complete picture of the amount, rates, and
composition of volatiles and decomposition products can be ascertained by combining
these results with chromatography and/or spectroscopy techniques.

A TGA analysis of an unknown yields information such as;

•   Rates of evaporation
•   Volatile content of any material
•   Thermal decomposition
•   Thermal stability
•   Activation Energy
•   Plasticizer, polymer, black and ash content
•   Decomposition kinetics and lifetime prediction
•   Compositional analysis of polymers and copolymers

TA Instrument 2950 Thermogravimetric Analyzer

Inductively Coupled Argon Plasma - Optical Emission Spectrometry
An ICP can quantitatively measure elements down to sub-ppm levels. It can be used to
identify and characterize minerals, metal alloys etc.
Some typical elements analyzed with our ICP in the past include:

Aluminum       Copper       Potassium        Arsenic            Iron              Silicon         Barium
Lead              Silver          Boron               Magnesium      Sodium         Cadmium    Nickel    
Manganese    Strontium   Calcium            Molybdenum    Tin                Chromium               
Titanium         Cobalt        Phosphorous    Vanadium        Lanthanum  Zinc

                                          ARL 3410 ICP

Ion Chromatography (IC)

lon Chromatography (IC) is a separation technique used to determine aqueous samples
for anions, cations, and trace levels of organic acids.  Ion Chromatography is similar to
HPLC in that it requires a liquid mobile phase and a column with a stationary phase.
Ions are separated through their affinity to the stationary phase.  In that, ions that
have a higher affinity for the stationary phase elute slower than ions that have a lower
affinity for the stationary phase. The technique uses conductivity, indirect UV or direct
UV to detect materials eluting from the column.

Dionex DX500 Ion Chromatograph

•   Identification and quantification of anions such as Fluoride, Chloride, Bromide,
Nitrate, Phosphate and Sulphate in water or air.
•  Trace-level analysis of organic acids in aqueous process streams.
•  Industrial hygiene sample analysis for hydrogen chloride, sulfuric acid or sulfur
dioxide, and other organic and mineral acids.
•  Polyester resin analysis for halogens or phosphorus components via conversion to
halides and phosphate, respectively.

High Performance Liquid Chromatography (HPLC)

HPLC's strength lies in its versatility, sensitivity, and selectivity. This chromatographic
technique can use different mobile phases and columns to achieve the necessary
separation of many different analytes that cannot be analyzed by gas chromatography.
HPLC is non-destructive and analytes can be isolated for further spectroscopic analysis.
Very low detection levels are achievable and multiple detectors can be used in series to
monitor specific analytes. A UV detector is used in this laboratory.

Waters 600 HPLC System with UV detector

Typically used for quantification of trace organics in aqueous solutions.

Gas Chromatography (GC)

Gas Chromatography (GC) is a universal separation technique for many complex
mixtures. It uses differences in boiling point and analyte-column interaction to achieve
the desired separation. GC is commonly used to analyze mixtures for identification and
quantification. It is cost a effective analytical tool for a wide range of analytical
problems. Assay and trace level analyses are achieved with minimal sample preparation.

HP 5890 Gas Chormatograph (GC)

•  Quantitation by direct injection to determine composition of solvent blends and
additives in manufactured products.
•  Identification and quantification of residual monomers and solvents in product
formulations, coated films, and solid materials.
•  Trace-level analysis of analytes for industrial hygiene surveys, product contamination,
environmental studies, and waste analysis.