Sentence examples for samplers were extracted from inspiring English sources
Field samplers were extracted twice with 100 mL of ethyl acetate on an orbital shaker at 60 rotations per minute (VWR) for nominally 2 h each time.
One laboratory blank POCIS, containing only the internal standards, and one field blank were extracted for each set of POCIS samplers.
Samplers were placed in Milli-Q water for 15 min to wet the HLB phase then were extracted in a 60 mL glass clean-up column containing 3-5 g of anhydrous sodium sulfate (Sigma, pre-dried at 450°C).
Groundwater was extracted from multilevel samplers and pumped through 7-cm-long columns of intact sediment or repacked sieved and coated or uncoated sediment from the underlying aquifer.
Pore-water was extracted using Rhizon® pore-water samplers inserted through a small hole punctured in the plastic wrap (for description and supplier, see p 99 100 in [31]).
The most common personal samplers are active devices that pump air through filters that are extracted for target compounds.
PE samplers were removed after 3 weeks and extracted twice for 24 h in 10 mL of 50 50 v:v hexane/acetone.
The sensitivity of multipollutant and Analyst samplers was comparable for HNO3, but the Analyst samplers were more sensitive to low concentrations of NO2.
The new multipollutant samplers and standard Analyst samplers were also compared by estimation of sensitivity given as limits of detection (LODs) and uncertainty given as relative standard deviations.
Samplers were exposed in duplicate; the accuracy of the method is about ±25%.
