Sentence examples for sample at the concentration from inspiring English sources

Among organophosphorus pesticides, chlorpyrifos was detected in four samples and concentrations ranged from 3.27 to 9.31 μg/l, which was lower than the standard value of Japan (MPHW 1997) whereas diazinon was detected in only one sample at the concentration of 7.86 μg/l, which was much higher than the Australian Health Value of 3 μg/l for diazinon (NHMRC 1996).

It is notable that narasin was found in one sample at the concentration of 1.6 mg/kg, which exceeded the permissible content (0.7 mg/kg).

The measurement repeatability was calculated based on the measurements from five extractions in a sample at the concentration of 5 μg L−1.

Parathion was found in two tested samples at the concentration of 0.73 and 6.23 μg/l.

The next day, cells were treated with samples at the concentration of 0, 20, 40, 60 μg/ml.

Application of these sorbent media allowed to determine cocaine and benzoylecgonine in urine samples at the concentration level of 100 ng/ml with good recovery values as 81.7% ± 6.6 and 73.8% ± 4.2, respectively.

In this study, ethion was not detected in any of the tested samples whereas fenthion was detected in two samples at the concentration of 25.11 and 56.3 μg/l, respectively.

Absorbance data at 280 nm were acquired from 90 µl samples at the concentration of 150 µM in 50 mM Tris (pH 8.0).

For both fibers, the linear range was determined by conducting the extraction under optimum conditions (in triplicate) from samples at the concentration level ranging from 0.1 to 25 μg L−1.

As control, the DMSO did not affect the growth of the sample strains at the concentration used in this study.

To validate the performance of the biosensor, ethanol solution samples at the concentrations of 5%, 7.5 %, 10, 12.5% and 12.5in volumetric fractions were used, respectively.