Results 291 to 300 of about 240,361 (354)

Statistical methods for improving authentication of wines based on stable isotope ratios

open access: green, 2013
Nevenka Đorđević   +4 more
openalex   +1 more source

Stable isotope ratio analysis for authentication of chitosan

open access: yes, 2018
Perini, M.   +4 more
openaire   +1 more source

Stable Isotope Ratios: Hurricane Olivia

Journal of Atmospheric Chemistry, 2002
The oxygen and hydrogen isotopic compositions of rains from HurricaneOlivia (1994) in the eastern Pacific were measured. The rains werecollected on 24 and 25 September during airplane flights conducted at anelevation of 3 km. Hurricane Olivia peaked in intensity to a category-4storm between the two dates.
James R. Lawrence   +3 more
openaire   +1 more source

Stable isotope ratio profiling of testosterone preparations

Drug Testing and Analysis, 2010
AbstractGas chromatography‐combustion‐isotope ratio mass spectrometry (GC‐C‐IRMS) is the preferred method of confirming the administration of exogenous testosterone by athletes. This relies on synthetic testosterone preparations being depleted in 13C compared to natural testosterone.
Adam, Cawley   +6 more
openaire   +2 more sources

Stable Isotope Ratios of Marijuana. I. Carbon and Nitrogen Stable Isotopes Describe Growth Conditions*

Journal of Forensic Sciences, 2008
Abstract: There remains significant uncertainty in illicit marijuana cultivation. We analyzed the δ13C and δ15N of 508 domestic samples from known U.S.A. counties, 31 seized from a single location, 5 samples grown in Mexico and Colombia, and 10 northwest border seizures. For a subset, inflorescences and leaves were analyzed separately.
Jason B, West   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy