Upper foliage samples in the rinsed category displayed an increasing trend across drying methods, with the highest concentrations in room-dried samples (9.0 ± 1.3 ng g -1 , 1SD, n = 3), followed by oven-dried (8.4 ± 0.93 ng g -1 , 1SD, n = 3) and freeze-dried samples (8.0 ± 1.9 ng g -1 , 1SD, n = 3).
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Evaluation of sampling and sample preparation methodologies for determination of mercury concentrations and stable mercury isotopes in foliage samples.
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