isotope dilution-mass
11Creatinine — Not to be confused with creatine. Creatinine …
12ID — gen. abbr. Inner Diameter math. abbr. Inside Diameter metal. abbr. Inside Dimension nucl. abbr. Isotope Dilution mass abbr. IDentification comp. abbr. Identification comp. abbr. Identifier acronym Idaho acronym IDentification …
13dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …
14analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …
15Dimethyltryptamine — Systematic (IUPAC) name 2 (1H indol 3 yl) N …
16Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …
17nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
18Isotopes of calcium — Calcium (Ca) has four stable isotopes (40Ca and 42Ca through 44Ca), plus two more isotopes (46Ca and 48Ca) that have such long half lives that for all practical purposes they can be considered stable. It also has a cosmogenic isotope, radioactive …
19Uranium-lead dating — Uranium lead is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years, and with routine precisions in the 0.1 1 percent range. [Parrish, Randall R.; Noble,… …
20Samuel Conway — Dr. Samuel C. Conway Dr. Conway at Anthrocon 2008 Born June 4, 1965 (1965 06 04) …
