Sentence examples for contents of trace from inspiring English sources

The total P, Fe, Al, Ca and Mg concentrations of the biochar were high (Additional file 1: Tables S1, S2) and so the total contents of trace and toxic elements.

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.

The number of samples analysed of each specific food item was decided on the basis of earlier experience concerning the variation in contents of trace elements in that specific food item, such that the number of samples analysed were larger for food items with larger variation in trace element concentration than for food items with lesser variation.

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 plants showed a high content of trace elements in the roots and above-ground biomass.

The weighted content of trace elements in Heidaigou formations is relatively low, which is beneficial for coal processing and utilization.

The theoretical content of trace elements in the macerals and minerals were then calculated using linear equations and the organic affinities of the trace elements are discussed.

The theoretical content of trace elements in the maceral groups and in the minerals of No. 6 coal from Heidaigou mine are listed in Table 12.

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

In order to avoid residues that can affect the precise content of trace elements, ultra-pure H2O and 2%% (V/V) HNO3 (65 %) are used to flush pipeline in turn, for 5 and 10 min, respectively.