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14CO2
 14CO2 Continuous Flow/Field Analysis – PEM 14C GMP available Q2, 2014 14CO2 AMS - Single or mulitple flask sampling (Selected AMS Facilities) 14CO2 Liquid Scintillation Counting - Passive CO2 collectors (Selected Commercial Analyzers) 14C of Aqueous CO2 – PEM’s GMP can be interfaced with a CO2 aqueous extractor or collection of water samples can be used with traditional dissolved inorganic carbon analytical methods employing selected laboratories 14C of Soil CO2 – PEM’s GMP can be interfaced with soil accumulation chambers using a continuous flow method or flask samples can be taken and analyzed by AMS

13CO2
 13CO2 Continuous Flow/Field Analyses – PEM 13C, 14C GMP available Q2, 2014. 13CO2 Isotope Ratio Mass Spectrometry (IRMS) - Selected IRMS facilities. 13CO2 Quantum Cascade Laser - Selected available QCL systems. 13C of Aqueous CO2 - PEM’s GMP can be interfaced with a CO2 aqueous extractor or collection of water samples can be used with traditional dissolved inorganic carbon analytical methods employing selected laboratories. 13C of Soil CO2 – PEM’s GMP can be interfaced with soil accumulation chambers using a continuous flow method or flask samples can be taken and analyzed by IRMS or QCL.

CH4, N2O
 CH4 – 14C/12C and 3H/1H (Tritium). CH4—13C/12C (δ13C) and 2H/1H (δD). N2, N2O--15N/14N (δ15N) analysis of nitrogen in gas sample in a flask sample; N2, N2O

H2O Stable Isotopes of Water
 13C/12C (δ13C) analysis of DIC in water. 2H/1H (δD) and 18O/16O (δ18O) analysis of water. 15N/14N (δ15N) and 18O/16O (δ18O) analysis of dissolved nitrate. 34S/32S (δ34S) analysis of dissolved sulfate. 34S/32S (δ34S) (δ34S) and 18O/16O (δ18O) analysis of dissolved sulfate.

Tritium Analysis of Water
 3H analysis of water by direct counting (beta spectrometry). 3H analysis of water with electrolytic enrichment.

Radiocarbon Analysis of Water
 14C analysis of dissolved inorganic carbon (DIC) in water by AMS.

Solids and Liquids
Isotopic Analysis of Organic Solids & Liquids by IRMS (Samples must be provided ready to analyze):
 13C/12C (δ13C) analysis. 13C/12C (δ13C) and 15N/14N (δ15N) analysis 34S. 18O/16O (δ18O) analysis by IRMS. 2H/1H (δD) analysis by IRMS.

Carbonates by Acid Digestion and IRMS
 13C/12C (δ13C) analysis and 18O/16O (δ18O) analysis.

PEM Forest Carbon Projects

PEM is focused on supporting the preservation of forested or natural ecosystems. We offer a range of services to enable Landowners to maintain and benefit from their land investments, in addition to Investors looking to support preservation initiatives.