Exact(5)
The absence of volatile products from the RuO4 oxidation of this mature sample therefore suggests that covalent connection still exists between the polymer backbone and the A/B ring system after oxidation.
The objectives of this study were to characterize the DOM in landfill leachate through physico-chemical and optical analyses and to investigate the toxic metals (Ni2+, Pb2+ and Hg2+) binding affinity of three different ages (fresh sample L-1, young sample L-2 and mature sample L-3) DOM samples.
These include: (a) 37 position-specific features containing combined sequence and structure information of each position and (b) the distance between the start position of the mature sample and the closest end of the nearest precursor hairpin as it folds into a secondary structure.
The least mature sample, the July harvest of CIR switchgrass, released the most sugars (520 g/kg biomass) during enzymatic hydrolysis while requiring the least severe pretreatment conditions.
Therefore, the histology and ultrastructure of collagen fibers by SEM observations from this study might not be translated to mature sample, additionally to human due to of anatomical differences [ 44].
Similar(55)
Trench regolith from station 8 contained mature samples based on carbon content and maturity index (McKay et al. 1974).
In the studied samples, the Tmax ranges from 285 to 444 °C, indicating immature to marginally mature samples (Table 2, Fig. 7a).
Specifically, for the two least mature samples, the most aggressive milling method (configuration D) increased reflectance of vitrinite from 0.48% to 0.58%, and from 0.58% to 0.74%.
Mean pH value for laboratory prepared fresh leachate samples (L-1) was 5.68 whereas for young (L-2) and mature samples (L-3), the values were 7.94 and 7.87, respectively.
However, as noted above, the data given in data set 3 preclude the presence of a double bond in, or on the labdanoid A/B ring system in mature samples.
Among all binaphthyl isomers, 1,1-BiN is the most thermally unstable one and was found only in less mature samples; while 2,2-BiN is more stable and also present above the oil window range (Rospondek et al. 2009; Li et al. 2012a).
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