Sentence examples for rare compounds from inspiring English sources

Extremely rare compounds, such as the insect hormones, have been isolated by chromatography (a method of separating the components of a solution, or mixture, based on selective adsorption onto a layer or column of suitable material).

That question is also being asked by unscrupulous dealers, who are happy to import and sell these untested, rare compounds of unknown purity, dissolve them in acetone and spray them on an inert herbal carrier material which they sell online to anyone with a credit card.

The context weighting gives rare compounds a high weight and common compounds a low weight, encouraging paths to go through reactions that use common compounds as side compounds.

Bacterial diversity analysis of such extreme environments by culture independent approaches has grown in significance because of their diverse, unusual chemistry and the opportunity they provide to identify rare compounds and genes (Kuddus and Ramtekke 2012).

Different alkaloids profiles, including both ubiquitous and potentially rare compounds, were observed.

Apart from 7 (23%) of the patients found to be homozygous for rare [p.G553R (G537R), p. F596SfsX16 (F580Sfs)] or novel [p.E136EfsX35, p.H391IfsX65, p.L469YfsX22] mutations, the remainder were rare compound heterozygotes, including 3 patients in whom the second mutant allele could not be identified.

We report the discovery of rare compound heterozygous mutations in the myosin heavy chain 7B gene, MYH7B, as a novel likely cause of SNHL, by exome sequencing a family of five individuals.

By far, the highest increase obtained in both cases is that of β-carotene, one of the main goals of our engineering effort; these results, together with those of Ducreux et al. [ 2] and Lu et al. [ 19], clearly show that β-carotene, although it is a very rare compound in cultivated potato [ 15], can accumulate to remarkable levels after metabolic engineering.

Further studies on these "rarer" compounds are particularly necessary because some studies have shown effects on microalgal communities even at very low environmental concentrations.

The large error between replicates gives the CARA poor Z' scores, invalidating the CARA for high-throughput screening, in which one seeks rare active compounds in a collection of mostly inactive compounds.

Electronics industries have been affected, particularly camera manufacturers, leading to a desperate scramble for raw materials that has even included buying tons of obscure rare earth compounds from corporate stockpiles in Europe and airlifting them to Japan.