calibration curve
21Radiokohlenstoffdatierung — Die Radiokohlenstoffdatierung, auch 14C Datierung, C14 Datierung/ methode, Radiokarbon Datierung/ methode (lat. carbo ‚Kohle‘), ist ein Verfahren zur radiometrischen Datierung von kohlenstoffhaltigen, insbesondere organischen Materialien. Der… …
22Analytical chemistry — For the journal, see Analytical Chemistry (journal). Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials.[1] Qualitative analysis gives an… …
23New Chronology (Fomenko) — Not to be confused with New Chronology (Rohl). Cover of History: Fiction or Science? Chronology volumes 1,2,3 The New Chronology is a fringe theory in history, which argues that the conventional chronology is fundamentally flawed, that events… …
24Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …
25New Chronology (Fomenko-Nosovsky) — The New Chronology is a rewriting of world chronology, based on the contention that conventional chronology is fundamentally flawed. The central concepts of the New Chronology are derived from the ideas of Nikolai Morozov,cite… …
26Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… …
27Standard addition — The method of standard addition is used in instrumental analysis to determine concentration of a substance (analyte) in an unknown sample by comparison to a set of samples of known concentration, similar to using a calibration curve. Standard… …
28Linear least squares (mathematics) — This article is about the mathematics that underlie curve fitting using linear least squares. For statistical regression analysis using least squares, see linear regression. For linear regression on a single variable, see simple linear regression …
29Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
30Ultraviolet–visible spectroscopy — Beckman DU640 UV/Vis spectrophotometer. Ultraviolet visible spectroscopy or ultraviolet visible spectrophotometry (UV Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet visible spectral region. This… …
