Measurement nomenclature

ACS Style is adhered to with regard to grammar, punctuation, spelling, voice, editorial considerations, units of measure, nomenclature, chemical conventions, references and citations. 3 0 1 2... 

Here, fisAB denotes the angle as measured in liquid A, and the phases in parentheses have saturated the immediately preceding phase. A strictly rigorous nomenclature would be yet more complicated we simply assume that A and B are saturated by the solid and further take it for granted that the two phases at a particular interface are mutually saturated. mutual saturation effects are neglected, then the combination of Eqs. X-23 and X-21 gives... 

The nomenclature of biochemical compounds is in large measure a part of organic nomenclature. However, it has its own special problems, arising partiy from the fact that many biochemical compounds must be given names before their chemical stmctures have been fully determined, and partiy from the interest in grouping them according to biological function as much as to chemical class. 

Peracid Classification. Peracids can be broadly classified into organic and inorganic peracids, based on standard nomenclature. The limited number of inorganic peracids has required no subclassification scheme (4). However, the tremendous number of new organic peracids developed (85) has resulted in proposals for classification. Eor example, a classification scheme based on Hquid chromatography retention times and critical miceUization constants (CMC) of the parent acids has been proposed (89). The parent acids are used because of the instabiHty of the peracids under chromatographic and miceUization measurement conditions. This classification scheme is shown in Table 1. 

Hantzsch s proposal is consistent with characteristic infrared vibration frequencies of syn- and a fr-diazoates, suitably labeled with 15N, measured by Kiibler and Liittke (1963) and by an X-ray structure determination of a sy -diazoate by Alcock et al. (1980b). It is appropriate, therefore, to replace the syn/anti by the (Z/E) nomenclature for isomers (Sec. 7.1)... 

The host of new synthetic organic pesticides presents a variety of problems to the practicing physician because of the lack of basic fundamental information on these chemicals. The American Medical Association has organized a committee on pesticides to consider the following problems of economic poisons and to coordinate information and make it available to physicians and other interested persons or groups safe standards of use, development of prophylactic and antidotal measures, voluntary industry controls, standardization of nomenclature, and professional and public education. 

There are countless situations where the relative acidity or alkalinity of a substance or system is of critical importance. Agricultural conditions, water quality, food preservation, lung and kidney function—all are circumstances in which quantitative measures of acidity or basicity enable proper maintenance and regulation of vital processes. The term pH is widely used as an expression of acid/base content, but what is the origin of such nomenclature ... 

Some of the other properties of interest for fire hazard assessment cannot be measured with RHR calorimeters. They include flame spread, limiting oxygen index (LOI, or simply oxygen index, 01 both names have been used, but the author s preferred nomenclature is the one used here) and fire endurance. 

Physical quantities relevant to analytical measurements and the units and symbols used to express them are given in Table 1.3. Both SI and CGS units have been included because of current widespread use of the latter and for ease of comparison with older literature. However, only the SI nomenclature is now officially recognized and the use of the CGS system should be progressively discouraged. 

For the designation of pH in non-aqueous solvents, we use the forms described by Bosch and coworkers6 based on the recommendations of the IUPAC, In Compendium of Analytical Nomenclature. Definitive Rules 1997, 3rd edn, Blackwell, Oxford, UK, 1998. If one calibrates the measuring electrode with aqueous buffers and then measures the pH of an aqueous buffer solution, the term "pH is used if the electrode is calibrated in water and the pH of the neat buffered methanol solution then measured, the term, pH is used, and if the electrode is calibrated in the same solvent and the pH reading is made, then the term pH is used. 

Nomenclature. The form of words we employ in electroanalysis will tell us much about the parameters under study, as shown by Table 1.2. Being able to take a word apart, bit by bit, will tell us what the overall electroanalytical term means. We have already mentioned potentiometry and amperometry as being techniques for following potential and current, respectively. As another example, there is a commonly used joint term, i.e. voltam- , which implies measurement of current in response to potential variation. An example of this is a voltammogram, which is a trace ( -gram ) of current ( ammo- ) as a function of potential ( volt- ). 

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