These properties are crucial when handling heat-sensitive molecules such as antibodies or labeling with short half-life isotopes such as 68Ga, 212/213Bi, 44Sc, or 64Cu. DTPA is one of the most extensive used acyclic chelators in radiochemistry. However, as a first-generation radiometal ...
Elements in the same group in the periodic table (a) have similar chemical properties. (b) are called isotopes. (c) have consecutive atomic numbers. (d) make up a period of elements. Refer to the periodic table and give the period and group number for...
Effects of alpine meadow degradation on the soil physical and chemical properties in Maqu, China 2024, Research in Cold and Arid Regions Show abstract Exploring the Spatiotemporal Heterogeneity of Stream Nitrogen Concentrations in a Typical Human-Activity-Influenced Headwater Watershed in South China 2024...
Many substances, however, both biological and chemical, conform to a different mechanism: In a given time period, half of the substance will disappear in a fixed time no matter how much is present to start with. Such substances are said to have ahalf-life. Radioactive isotopes obey this pr...
purification, although other elements may be removed, radioactive 210Pb is concentrated with non-radioactive 206Pb due to the same chemical properties of the two lead isotopes. In the 8 to 9 months after melting and purification, theα activity of lead can be as high as 100 α/ (cm2 "...
[7]. High variation of growth in trees between dry and less dry plots could be the reason for high heterogeneity in that year. It warrants a future study using sulfur, oxygen, and carbon isotopes on tree rings to decouple the effects of acid rain and drought on the growth decline of ...
CSChemical Synthesis CSCustom Scenery(aka Custom Scenery Object; also seen as CSO; Atari) CSCommon Source(amplifier topology) CSCollective Soul(band) CSControlled Substance CSCost Sharing CSChanServ(IRC Channel Server) CSCalifornia Special(automobile) ...
and Theo van Laar for fruitful discussions and assistance, to Michelle Gibbs and Kurt Fredrick for the gift of Arg and Lys isotopes for the SILAC analysis, and to Sophie Harvey, Liwen Zhang, and Arpad Somogyi at the Ohio State University Campus Chemical Instrument Center for mass spectrometry ...