Sentence examples for blank solvent from inspiring English sources

The same volume of blank solvent was added at each scheduled time intervals.

(From up to down: 45° Zhuyeqing Liquor, 45° FenJiu, mixed reference standards, blank solvent: methanol, respectively).

Blank solvent (acetonitrile or methanol) was spiked with the 14 test compounds to generate a nominal concentration of 1 mg/mL for each compound.

For all clotting assays, blank solvent was used as blank control group, and breviscapine and Vitamin K1 were used as positive control group and the time for clot formation was recorded by Semi-Automated Coagulation Analyzer.

The reaction mixture was vortex mixed for 10 s and incubated at 50°C for 15 min. The azo adduct formed was processed as described above, and the absorbance reading was taken at 470 nm using acetonitrile as blank solvent.

As a possible explanation for the inconsistent yields, the possibility of analytical contamination was checked; during the LC-MS/MS analysis of the nitrosamines, blank solvent samples were run before and after as quality control samples; however, no contamination or carryover was found.

Samples were run in batches that included double blanks (solvent blank), a method blank, matrix blank (blank serum), standards, QC samples, and unknowns in sequence.

Procedural blank and solvent blank were analyzed for every set of 20 samples.

And for each method, a blank sample (solvent plus I.S).

A typical instrument sequence consisted of a blank (injection solvent), three calibration standards (0.2, 0.5 and 1 ng ml−1 OTA), six sample extracts, two calibration standards (2 and 5 ng ml−1 OTA) and a methanol-water wash before LC shutdown.

Different concentrations of calycosin were added (final concentrations were 0.004, 0.011, 0.035, 0.111, 0.352, and 1.113 mmol/L), four duplicates every group, including blank and solvent control (0.5% DMSO).