Development Of Preparation Methods For Carbon¹³/carbon¹² Analysis Of Soil And Plant Samples Using Optical Breath Test Analyzers

Abstract

Until recently, the only reliable way of doing 12 C-13 C analysis was using a mass spectrometer. For many developing countries, the high initial cost and running costs of a mass spectrometer precluded the purchase of such an instrument. Recent developments in optical systems have provided

Studying Animal Diets In Situ Using Portable Stable Isotope Analyzers

“…, Schmidt 2002). Although these instruments are sufficiently refined to measure δ 13 C breath reliably and warrant the accurate diagnosis of various gastro‐intestinal diseases, ecologists or behavioral physiologists have not yet recognized the instruments’ potential for field‐ or laboratory‐based studies (but see Hood et al 2003, Voigt et al 2008d).…”

“…In medical practice and research, δ 13 C breath is usually analyzed by optical stable carbon isotope analyzers that measure the CO 2 -dependent absorption of infra-red radiation (e.g., Schmidt 2002). Although these instruments are sufficiently refined to measure δ 13 C breath reliably and warrant the accurate diagnosis of various gastro-intestinal diseases, ecologists or behavioral physiologists have not yet recognized the instruments' potential for fieldor laboratory-based studies (but see Hood et al 2003, Voigt et al 2008d.…”

Effect of irrigation regimes on carbon isotope discrimination, yield and irrigation water productivity of wheat

“…Only fully mature leaves from the latest growth period were used. Leaves were oven dried at 70 °C for 48 h and finely ground for carbon isotope analysis (Hood et al, 2003;Freres and Heng, 2014). Carbon isotope was analyzed (Δ) in leaf samples and postharvest grain.…”