@article {1831,
	title = {A Continuous-Flow Gas Chromatography C-14 Accelerator Mass Spectrometry System},
	journal = {Radiocarbon},
	volume = {52},
	year = {2010},
	note = {Sp. Iss. 1696jn
Times Cited:4
Cited References Count:24
},
	month = {2010},
	pages = {295-300},
	abstract = {Gas-accepting ion sources for radiocarbon accelerator mass spectrometry (AMS) have permitted the direct analysis of CO2 gas, eliminating the need to graphitize samples. As a result, a variety of analytical instruments can be interfaced to an AMS system, processing time is decreased, and smaller samples can be analyzed (albeit with lower precision). We have coupled a gas chromatograph to a compact C-14 AMS system fitted with a microwave ion source for real-time compound-specific C-14 analysis. As an initial test of the system, we have analyzed a sample of fatty acid methyl esters and biodiesel. Peak shape and memory was better then existing systems fitted with a hybrid ion source while precision was comparable. C-14/C-12 ratios of individual components at natural abundance levels were consistent with those determined by conventional methods. Continuing refinements to the ion source are expected to improve the performance and scope of the instrument.},
	keywords = {ams system, gc-ams, negative-ion source, RADIOCARBON ANALYSIS},
	isbn = {0033-8222},
	author = {McIntyre, C. P. and Galutschek, E. and Roberts, M. L. and von Reden, K. F. and McNichol, A. P. and Jenkins, W. J.}
}
@article {1847,
	title = {Developments in Radiocarbon Technologies: From the Libby Counter to Compound-Specific Ams Analyses},
	journal = {Radiocarbon},
	volume = {51},
	year = {2009},
	note = {453wfTimes Cited:15
Cited References Count:273
},
	month = {2009},
	pages = {45-78},
	abstract = {We review developments in radiocarbon measuring techniques from the Libby counter through proportional gas counters and liquid scintillation spectrometers to the more recent developments of accelerator mass spectrometry (AMS), followed by a coupling of gas chromatography with AMS for compound-specific (14)C analyses. While during the first 60 yr of (14)C measurements beta counting, specifically gas counting, was the dominant technique, in the future of (14)C science AMS will be the dominant technology.},
	keywords = {accelerator mass-spectrometry, black-sea shelf, liquid scintillation techniques, low-level c-14, natural-abundance radiocarbon, negative-ion source, polycyclic aromatic-hydrocarbons, proportional counter, salt-marsh sediments, sedimentary organic-carbon},
	isbn = {0033-8222},
	author = {Povinec, P. P. and Litherland, A. E. and von Reden, K. F.}
}
