Isotopic signatures of H, N, C, O, S and other naturally abundant elements have become important tools in biological, archeological, and geological studies as well as in forensics, food sciences, and organic chemistry.

Using our state-of- the art Isotope Ratio Mass Spectrometer (IRMS) instrumentation equipped with various peripherals our laboratory provides quick turn around on such analysis as:

• Elemental content of C, N and S in various matrices, as well as their isotopic signatures, δ13C, δ15N and δ34S
• δ18O of dissolved oxygen or in water molecule
• δ13C in atmospheric CO2 is analyzed using cryogenic focusing (CF) peripheral coupled with IRMS
• Compound-specific isotope analysis of d13C of various organics including FAME, VOC, PCB and others

High-precision abundance measurements of stable isotope pairs of light elements such as H, C, N, O and S have been used by IEH in various applications from determination of the regional origin and adulteration of food (honey, rice, spices, juices, spirits, wines, oils, coffee and etc.) to the identification of the source of fertilizer used in agricultural practices.

Isotope Ratio Mass Spectrometers from Thermo DELTAplus and Delta V have been used in our laboratory as universal tools for isotope ratio determination of such isotope pairs as 13C/12C, 15N/14N, 18O/16O, 34S/32S.