Sentence examples for the content of trace from inspiring English sources

The content of trace elements in plants, pseudo-total and extracted by 0.01 M CaCl2, were determined using the method of spectrophotometry.

Confusion arose, however, because it came to be recognized that the content of trace elements defined by the name adakite could be attributed to specific source rocks in several environments unrelated to slab melting, and interpretations of the origin of adakites changed.

The content of trace elements, vitrinite, inertinite, clay minerals, pyrite, quartz, carbonates, ash and sulfur in the 6 products of different densities that were obtained from the float-sink experiments, raw coal and the fines of less than 0.5 mm were used to calculate the correlation coefficients.

The organic affinity index (Ao) of different trace elements in the coal was calculated using Eq. (5): A_{o} = C_{o} W_{o} /C (5 where, Co is the average content of a specific trace element in the organic matter (μg/g), C is the content of trace elements in the raw coal (μg/g), and Wo is the content of organic matter in the coal (mass fraction).

During Vermeer's time, Dutch lead was mined from deposits located in the Low Countries; however, by the 19th century, most lead was imported from Australia and the Americas, and differed from the white lead Vermeer would have used both in the isotope composition of the lead and in the content of trace elements found in the ores.

The contents of trace elements in organic and inorganic components were studied by many researchers in this way (Gluskoter et al. 1977; Solari et al. 1989; Martinez-Tarazona et al. 1992; Pires et al. 1997; Klika et al. 1997; Klika and Kolonaznik 2000; Querol et al. 2001; Wagner and Tlotleng 2012; Oliveira et al. 2013; Equeenuddin et al. 2016; Bai et al. 2017).

It is very important to analyze the contents of trace elements in the honey samples because of their toxicity and because they can be transported through the root system into nectar or to the surfaces of the leaves.

It is recommended that tin whisker investigators consider hydrogen content and the content of other trace contaminants as part of their experimental design.

Sixty four mires, representative of the different landscape units, were analyzed for the content of 16 trace elements (Cr, Mn, Ni, Cu, Zn, and Pb using AAS; Cd by GF-AAS; Hg by the cold vapour method; and V, Co, As, Sr, Mo, Th, and U by XRF) as well as other peat characteristics (peat type, degree of humification, pH and ash content).

The content of some trace elements, especially the ratios of some related elements (Sr/Ba in this paper) are good signs for distinguishing sedimentary environment (Zhao 1998).

The maceral composition and the content of 18 trace elements in the products from the float-sink experiments are listed in Table 9.