here's some more grist for the mill. skoog west and holler 7th ed isbn 0030059380 - a good lower division book with 'wet' analytical and some beginning instrumental says that “analytical chemistry involves separating, identifying and determining the relative amounts of the components in a sample of matter. qualitative analysis reveals the .
the history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers.before the 20th century, most calculations were done by humans. early mechanical tools to help humans with digital calculations, like the abacus, were called 'calculating machines', called by proprietary names, or referred to as calculators.
an amalgam is an alloy of mercury with another metal. it may be a liquid, a soft paste or a solid, depending upon the proportion of mercury. these alloys are formed through metallic bonding, with the electrostatic attractive force of the conduction electrons working to bind all the positively charged metal ions together into a crystal lattice structure. almost all metals can form amalgams with mercury, the notable exceptions being iron, platinum, tungsten, and tantalum. silver-mercury amalgams a
percy george herbert fender 22 august 1892 – 15 june 1985 was an english cricketer who played 13 tests and was captain of surrey between 1921 and 1931. an all-rounder, he was a middle-order batsman who bowled mainly leg spin, and completed the cricketer's double seven times. noted as a belligerent batsman, in 1920 he hit the fastest recorded first-class century, reaching three figures in .
a computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.modern computers have the ability to follow generalized sets of operations, called programs. these programs enable computers to perform an extremely wide range of tasks.
synthesis. there are several methods for creating nanoparticles, including gas condensation, attrition, chemical precipitation, ion implantation, pyrolysis and hydrothermal synthesis. in attrition, macro- or micro-scale particles are ground in a ball mill, a planetary ball mill, or other size-reducing mechanism.
if the user of the methods does this for the major part of his work and is qualified by a degree in chemistry to make a professional judgment on the results, he is an analytical chemist, not a technician. many of the people i have known in mining and environment analytical laboratories have ph d's.
fullerene chemistry is a field of organic chemistry devoted to the chemical properties of fullerenes. research in this field is driven by the need to functionalize fullerenes and tune their properties. for example, fullerene is notoriously insoluble and adding a suitable group can enhance solubility.
traditionally, tablets have been made by granulation, a process that imparts two primary requisites to formulate: compatibility and fluidity. both wet granulation and dry granulation slugging and roll compaction are used. regardless of whether tablets are made by direct compression or granulation, the first step, milling and mixing, is the .