Speciation can be defined as the distribution of an element among defined chemical species in a system, and speciation analysis as the analytical activities of identifying and/or measuring the quantities of one or more individual chemical species in a sample. 1.3 Structural aspects of speciation: The definitions of species and speciation of elements are based on several different levels of atomic and molecular structure where species differences are manifest.
Noun. 1. rickshaw-a small two-wheeled cart for one passenger; pulled by one person. jinrikisha, ricksha. cart-a heavy open wagon usually having two wheels and drawn by an animal.oun. 1. rickshaw-a small two-wheeled cart for one passenger; pulled by one person. jinrikisha, ricksha. cart-a heavy open wagon usually having two wheels and drawn by an animal.
Hops' Scrimshaw The home of Elephant Frienbdly Scrimshaw. The History of Scrimshaw. Scrimshaw is an art form that is considered by some to be the only art form that originated in America, since the art of Scrimshaw was first practiced by sailors working on whaling ships out of New England.ops' Scrimshaw The home of Elephant Frienbdly Scrimshaw. The History of Scrimshaw. Scrimshaw is an art form that is considered by some to be the only art form that originated in America, since the art of Scrimshaw was first practiced by sailors working on whaling ships out of New England.