Word Finder - quantitative

definition

Of a measurement based on some quantity or number rather than on some quality

definition

Of a form of analysis that determines the amount of some element or compound in a sample

Definite economic problems can very rarely be dealt with by merely quantitative methods.

In an analysis course you will learn how to perform simple quantitative analyses.

However, there is an even sharper color change which is used in quantitative analysis.

Most did not provide quantitative data so the reports remain anecdotal.

The elementary use of graphic methods is qualitative rather than quantitative; i.e.

Method would generate an inadequate range of useful quantitative data and there are considerable concerns about reliability.

These terms are frequently equated with the statistical terms " quantitative " and " qualitative " .

Will the trial include qualitative as well as quantitative elements?

Various methods have been devised for the quantitative determination of phenol.

Apart from his administrative duties Fresenius occupied himself almost exclusively with analytical chemistry, and the fullness and accuracy of his text-books on that subject (of which that on qualitative analysis first appeared in 1841 and that on quantitative in 1846) soon rendered them standard works.

Their quantitative experiments were, however, too rough to permit of accurate generalization; and although Lavoisier and Laplace stated the principle that the same amount of heat must be supplied to decompose a compound as would be produced on its formation, the statement was not based on exact experiment, and only received experimental confirmation much later.

Every improvement involves, from a quantitative point of view, more or less of capital or of labour, so that it is the " antagonizing " influences, which are nearly all qualitative, which appear to be really important.

Quantitative chemistry had been all but neglected before the time of Lavoisier, for although a few chemists such as Tachenius, Bergman and others had realized the advantages which would accrue from a knowledge of the composition of N N N bodies by weight, and had laid down the lines upon which such determinations should proceed, the experimental difficulties in making accurate observations were enormous, and little progress could be made until the procedure was more accurately determined.

The formulation of the atomic theory by John Dalton gave a fresh impetus to the development of quantitative analysis; and the determination of combining or equivalent weights by Berzelius led to the perfecting of the methods of gravimetric analysis.

Another branch of physical chemistry has for its purpose the quantitative study of chemical action, a subject which has brought out in clear detail the analogies of chemical and physical equilibrium (see Chemical Action).

There is no logical principle which requires that we should derive qualitative change by logical analysis from quantitative difference.

The disciples of Newton maintained that in the fact of the mutual gravitation of the heavenly bodies, according to Newton's law, they had a complete quantitative account of their motions; and they endeavoured to follow out the path which Newton had opened up by investigating and measuring the attractions and repulsions of electrified and magnetic bodies, and the cohesive forces in the interior of bodies, without attempting to account for these forces.

According Lo both, it is always some substance, such as Socrates, which is quantitative, qualitative, relative, somewhere, some time, placed, conditioned, active, passive; so that all things in all other categories are attributes which are belongings of substances.

Thus such genes have been called quantitative trait loci or QTL.

No quantitative determination of the amount of gold in solution is available.

The quantitative estimate of the amount of this flora has revealed its enormous aggregate amount and therefore its great importance in the economy of oceanic and lacustrine animal life.

Several methods are employed for the quantitative estimation of urea.

A little later this same knowledge led him to the beginnings of quantitative organic analysis.

Up to about this time Lavoisier's work, mainly quantitative in character, had appealed most strongly to physicists, but it now began to win conviction from chemists also.

And in this way we pass on to the quantitative aspects of being.

For the quantitative determination of the metal, the salts are precipitated by caustic potash, the precipitate washed, dried and heated, and finally weighed as the dioxide.

In accordance with the recommendations of the Hemp Drugs Commission, the government of India passed an act in 1896 providing that, in regard to ganja and charas, cultivation of the plants should be restricted as much as possible, and that a direct quantitative duty should be levied on the drugs on issue from the warehouse in the province of consumption; while as regards bhang, cultivation of the hemp for its production should be prohibited or taxed, and collection of the drug from wild plants permitted only under licence, a moderate quantitative duty being levied in addition to vend fees.

Ptolemy's classification has been adopted as the basis of the more exactly quantitative modern system.

The symbolic logic, which confuses " is " with " is equal to," having introduced a particular kind of predicate into the copula, falls into the mistake of reducing all predication to the one category of the quantitative; whereas it is more often in the substantial, e.g.

Numerous salts of the acid are known, the basic ferric salt being occasionally used in quantitative analysis for the separation of iron from aluminium.

The third covers the period between 1831 and Clerk Maxwell's enunciation of the electromagnetic theory of light in 1865 and the invention of the self-exciting dynamo, which marks another great epoch in the development of the subject; and the fourth comprises the modern development of electric theory and of absolute quantitative measurements, and above all, of the applications of this knowledge in electrical engineering.

The accuracy of his measurement, by which he established within 2% the above law, was only limited by the sensibility, or rather insensibility, of the pith ball electrometer, which was his only means of detecting the electric charge.2 In the accuracy of his quantitative measurements and the range of his researches and his combination of mathematical and physical knowledge, Cavendish may not inaptly be described as the Kelvin of the 18th century.

Faraday's ideas thus pressed upon electricians the necessity for the quantitative measurement of electrical phenomena.'

Lenz (1804-1865), 1 Amongst the most important of Faraday's quantitative researches must be included the ingenious and convincing proofs he provided that the production of any quantity of electricity of one sign is always accompanied by the production of an equal quantity of electricity of the opposite sign.

As regards the latent process (latens processes) which goes on in all cases of generation and continuous development or motion, we examine carefully, and by quantitative measurements, the gradual growth and change from the first elements to the completed thing.

In consequence of the quantitative analyses he performed of a large number of salts, he has been credited with the discovery of the law of neutralization (Vorlesungen fiber die chemische Verwandtschaft der Korper, 1777).

In a restricted sense the term assaying is applied in metallurgy to the determination of the amount of gold or silver in ores or alloys; in this article, however, it will be used in a wider technical signification, and will include a description of the methods for the quantitative determination of those elements in ores which affect their value in metallurgical operations.

For their quantitative determination they are precipitated in nitric acid solution by means of silver nitrate, and the silver bromide well washed, dried and weighed.

This is the quantitative aspect of number.

The development from the name-series to the quantitative conception is aided by the numbering of material objects and the performance of elementary processes of comparison, addition, &c., with them.

It is possible, and (not so much for any application thereof as in order to more fully establish the analogy between the two kinds of co-ordinates) important, to give independent quantitative definitions of the two kinds of co-ordinates; but we may also derive the notion of line-co-ordinates from that of point-coordinates; viz.

But it may be doubted whether De Morgan's own system, "horrent with mysterious spiculae," as Hamilton aptly described it, is fitted to exhibit the real analogy between quantitative and qualitative reasoning, which is rather to be sought in the logical works of Boole.

The term "gas analysis" is given to that branch of analytical chemistry which has for its object the quantitative determination of the components of a gaseous mixture.

This is Spinoza's theory of the infinitely infinite," the limiting notion of infinity being of a numerical, quantitative series, each term of which is a qualitative determination itself quantitatively little, e.g.

In ancient classic poetry the measure which creates the metrical form consists only of this last quantitative element, which is rhythm.

But Reinsch's test cannot be used satisfactorily for a quantitative determination, nor can it be used in the presence of chlorates or nitrates.

He also devised a method of great value in the quantitative analysis of organic substances for the estimation of nitrogen, while the classification, of organic compounds into homologous series was advanced as one consequence of his researches into the acids generated by the oxidation of the alcohols.

The modern methods of oil testing rest chiefly on so-called "quantitative" reactions, a number of characteristic "values" being determined which, being based on the special nature of the fatty acids contained in each individual oil or fat, assist in identifying them and also in revealing adulteration.

It is true that many of these animals react somewhat differently to drugs, both as regards each other and as regards man, but for the most part the differences are quantitative rather than qualitative.

Under the mathematical principles come the general rules which furnish the ground for the application of quantitative reasoning to real facts of experience.