Mn/Cr relative sensitivity factors for synthetic calcium carbonate measured with a NanoSIMS ion microprobe
نویسندگان
چکیده
منابع مشابه
Ultra High Spatial Resolution Ion Imaging with a NanoSIMS Ion Microprobe: Applications
Introduction: Ion imaging technique with secondary ion mass spectroscopy (SIMS) is a powerful tool to visualize the distributions of isotopes and/or elements in samples, and is becoming common to variety field of sciences including material science [1], cosmochem-istry [2] and biology [3]. The CAMECA NanoSIMS 50L ion microprobe represents the in-situ microanalysis by SIMS, combining ultra high ...
متن کاملSulfate in Foraminiferal Calcium Carbonate : Investigating a Potential Proxy for Sea Water Carbonate Ion Concentration
The sulfur content of planktonic and benthic foraminifera was measured in specimens recovered from deep-sea sediment cores and individuals grown in culture. A new method for measuring sulfur in foraminiferal calcium carbonate was developed, employing a high-resolution inductively coupled plasma-mass spectrometer. The sulfur measurements, expressed as sulfur-to-calcium (S/Ca) ratios in the foram...
متن کاملRelative bioavailability of calcium from calcium formate, calcium citrate, and calcium carbonate.
Calcium is an essential nutrient required in substantial amounts, but many diets are deficient in calcium making supplementation necessary or desirable. The objective of this study was to compare the oral bioavailability of calcium from calcium formate, a new experimental dietary calcium supplement, to that of calcium citrate and calcium carbonate. In a four-way crossover study, either a placeb...
متن کاملIon chromatography detection of fluoride in calcium carbonate.
Fluoride in aquatic systems is increasing due to anthropogenic pollution, but little is known about how this fluoride affects organisms that live in and around aquatic habitats. Fluoride can bioaccumulate in structures comprised of calcium carbonate, such as shells and skeletons of both freshwater and saltwater species as diverse as snails, corals, and coccolithophorid algae. In this article, i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: GEOCHEMICAL JOURNAL
سال: 2010
ISSN: 0016-7002
DOI: 10.2343/geochemj.1.0089