Results 341 to 350 of about 22,263,277 (404)

Enhanced procedural blank control for organic geochemical studies of critical sample material

Geobiology, 2016
Organic contamination of sedimentary rocks can produce artefacts in studies of hydrocarbon composition, and this can have significant negative consequences for interpretations of the geobiological record. False positives – that is cases of non‐syngenetic
Arne Leider   +2 more
semanticscholar   +1 more source

1 Choice of adequate sample material

, 2012
H. Rabenau   +3 more
semanticscholar   +2 more sources

Emerging materials for sample preparation

Journal of Separation Science, 2017
AbstractThis review provides an update on the implementation of emerging materials as sorbents for sample preparation in combination with chromatographic separation. We have focused on recent applications of metal–organic frameworks, layered double hydroxides, porous carbons obtained from polymers or biomass precursors, and silicates (clays and ...
Milad Ghani   +5 more
openaire   +4 more sources

Subsampling a Mixture of Sampled Material

Technometrics, 1972
We consider the problem of estimating the mean of some characteristic from composited samples. Such techniques are appropriate when the measurement of the required characteristic is costly or tedious as, for example, the determination of yield or diameter from baled wool.
Nicholas I. Fisher, Giles H. Brown
openaire   +2 more sources

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