Sentence examples for a working standard from inspiring English sources

Further dilution was done in order to obtain a working standard solution of 1 μg ml-1 using absolute ethanol.

On the day of analysis, the stock solution was further diluted stepwise with water to obtain a working standard solution containing 1.0 μg/mL.

Fig. 1 Observed matrix effect during ion microprobe carbon isotopic analyses between three synthetic materials and the PPRG #215-1 Prechertian cherthatat has been used as a working standard previously.

Several groups have used the Precambrian rock chip PPRG #215-1 as a working standard for the analysis of carbon isotopes of organic material in Precambrian cherts [3, 7, 20, 21].

In this work, five possible standards were tested with repeated δ13C ion microprobe measurements against the PPRG #215-1 Prechertian cherthatat has been used as a working standard for these types of analyses by several laboratories.

Seven aliquots were employed for precision studies: a working standard at 0.8 mg/mL was prepared; two portions of each beverage respectively containing the target analytes at 0.25 mg/mL and 3 mg/mL were also prepared.

We have used an AGE-modified high-molecular-weight protein as a temporal working standard, expressing results as its weight equivalents.

The δC values of C2H2 were corrected to an EDTA working standard calibrated against a range of international standards, including NBS-19 and NBS-23 (−35.5‰ vs. VPDB).

The overall reproducibility of sulfur isotopic analysis, which was calculated by repeated measurement of a BaSO4 working standard, was ±0.1‰.

A series of working standard solutions were prepared by diluting aliquots of stock standard solution with DI water.

A series of working standard solutions of linifanib were prepared by further dilution of the stock solution using acetonitrile.