The phrase "repeat samples" is correct and usable in written English.
You can use it when referring to the need for multiple samples of the same kind of material. For example, "The scientist will take multiple repeat samples to ensure accurate results."
Thirty two of these dogs had repeat samples (n = 80 in total) available for analysis.
Blood samples taken at age 48 72 h were diagnostic whereas repeat samples at an older age were normal in 4/6 babies.
Eighteen precipitation samples were analyzed and 148 samples were collected from surface waters across California in the Summer and Fall of 2013, with repeat samples from some locations collected in Winter and Spring of 2014 to examine seasonal variation.
The error bars are shown in blue and represent the standard deviation in cell viability within 8 repeat samples.
Repeat samples were often undertaken, but over highly variable intervals that were frequently not defined a priori.
The U.S. EPA requires routine sampling of drinking water for testing total coliform and E. coli, and if a routine sample is positive, then repeat samples are required.
Active sampling was conducted on day 1 and a repeat sample was taken onto a replicate Tenax TA tube on day 2. The results given in all tables and figures are the average values for repeat samples.
Total RNA was extracted from at least three biological repeat samples per experimental condition using Trizol RNA isolation reagent (GIBCO-BRL) according to the manufacturer's instructions.
Repeat samples from the same individual were excluded from the statistical analysis unless they seroconverted or tested negative for two consecutive sampling periods for a given pathogen.
Furthermore, no significant differences were observed when comparing repeat FPLC runs and/or repeat samples, pointing to the high reproducibility of our technique (Fig. S5).
The HIV infected individuals were not receiving HAART (Highly Active Antiretroviral Therapy) throughout the study, and individuals were followed over 5 years with repeat samples obtained from the same individuals as their disease progressed.
