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Carbonate clumped isotope analysis involves the reaction of carbonate minerals with phosphoric acid to release CO for measurement in a gas-source isotope ratio mass spectrometer. Although the clumped isotope proxy is based on the temperature dependence of C- O bonding preference in the mineral lattice, which is captured in the product CO , there is limited information on the phosphoric acid reaction mechanism and the magnitude of clumped isotopic fractionation (mass 63 in CO to mass 47 in CO ) during the acid digestion.
This article was published in the following journal.
Name: Rapid communications in mass spectrometry : RCM
Thallium (Tl) is typical rare element with severe toxicity comparable to Hg and Pb. To track Tl pollution, isotopic fractionation of Tl was evaluated during pyrite smelting for sulfuric acid productio...
Accurate identification of nitrate (NO) sources is critical to address the issue of groundwater pollution. The nitrogen (N) isotopic enrichment factor (ɛ) is an important parameter to explain the N c...
To evaluate the pretreatment processing for Cd isotope analysis of environmental samples, acid extractions and total digestions were examined with various environmental certified reference materials. ...
Small intestinal starch digestion in ruminants is potentially limited by inadequate production of carbohydrases. Previous research has demonstrated that small intestinal starch digestion can be improv...
Bamboo leaves soups were subjected to in vitro digestion (including separated oral, gastric and small intestinal digestions, and complete digestion containing above three stages), and their phenolics ...
This study will give comparison of the bone pain remission and the adverse reaction of Zoledronic acid combine with High dose fractionation radiotherapy(30Gy/10f) and Zoledronic acid combi...
The aim of our study was to evaluate the value of two different altered fractionation schedules – hyperfractionation and accelerated fractionation with concomitant boost – in compariso...
Hypothesis: Combined treatment with valproic acid and ATRA can be used to achieve disease stabilization for a subset of patients with acute myelogenous leukemia (AML), and this effect can ...
The purpose of this study is to compare the changes in blood lipids and feelings of satiety after consumption of acid stable or acid unstable oil-in-water emulsions in which the droplets a...
The investigational drug, Obeticholic Acid (OCA) is a modified bile acid. Bile acids are used by the body to help with digestion. It is hypothesized that regular treatment with OCA will ...
Techniques for measuring specific nucleic acid interaction with another nucleic acid or with a protein by digestion of the non-interacting nucleic acid by various nucleases. After all non-interacting regions are eliminated by nuclease digestion, the protected nucleic acid that remains is analyzed. DNA FOOTPRINTING utilizes this technique to analyze the DNA contact sites of DNA-BINDING PROTEINS.
Sulfuric acid diammonium salt. It is used in CHEMICAL FRACTIONATION of proteins.
Group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. It is inherited as an X-linked or autosomal recessive defect. Mutations occurring in many different genes cause human Severe Combined Immunodeficiency (SCID).
An enzyme of the hydrolase class that catalyzes the reaction of triacylglycerol and water to yield diacylglycerol and a fatty acid anion. It is produced by glands on the tongue and by the pancreas and initiates the digestion of dietary fats. (From Dorland, 27th ed) EC 184.108.40.206.
The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.