Sentence examples for were collected once from inspiring English sources

During the dry weather studies, samples were collected once per week for 5 weeks.

Syngas samples were collected once the plant was operating at stable, steady-state conditions.

Eggs were collected once daily while egg weight and feed intake were determined at 28-d intervals.

Samples were collected once a week diluted and analyzed for molybdo-reactive silica concentration using the procedure given below.

They were collected once per minute using a sampling rate of 100 kHz for 2 s duration.

Seeds from traps were collected once a week, counted at the spot, bagged, labeled and transported to the laboratory.

The seawater samples for nutrient analysis were collected once a day from 20 April to 12 May in 2013.

Semen collections (digital manipulation) were performed twice weekly for 14 weeks and blood samples (for plasma concentrations of cortisol and testosterone) were collected once a week.

Measurements were collected once for each patient during the first day of mechanical ventilation at the time of blood gas analysis.

For silver analysis, mixed liquor (10 mL) and effluent (35 mL) samples were collected once daily from each SBR; 3 and 5.5 h after spiking, respectively.

Gas samples were collected once a day for 3 days within a 5-day period (i.e., days 1, 3, and 5).