MilliporeSigma
  • Home
  • Search Results
  • Evaluation of passive samplers for the collection of dissolved organic matter in streams.

Evaluation of passive samplers for the collection of dissolved organic matter in streams.

Environmental monitoring and assessment (2014-12-17)
Daniel L Warner, Diana Oviedo-Vargas, Todd V Royer
ABSTRACT

Traditional sampling methods for dissolved organic matter (DOM) in streams limit opportunities for long-term studies due to time and cost constraints. Passive DOM samplers were constructed following a design proposed previously which utilizes diethylaminoethyl (DEAE) cellulose as a sampling medium, and they were deployed throughout a temperate stream network in Indiana. Two deployments of the passive samplers were conducted, during which grab samples were frequently collected for comparison. Differences in DOM quality between sites and sampling methods were assessed using several common optical analyses. The analyses revealed significant differences in optical properties between sampling methods, with the passive samplers preferentially collecting terrestrial, humic-like DOM. We assert that the differences in DOM composition from each sampling method were caused by preferential binding of complex humic compounds to the DEAE cellulose in the passive samplers. Nonetheless, the passive samplers may provide a cost-effective, integrated sample of DOM in situations where the bulk DOM pool is composed mainly of terrestrial, humic-like compounds.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Cellulose, microcrystalline, powder
Sigma-Aldrich
Cellulose, colloidal, microcrystalline
Sigma-Aldrich
Cellulose, microcrystalline, powder, 20 μm
Sigma-Aldrich
Cellulose, fibers, (medium)
Supelco
Cellulose, DS-0, powder, suitable for thin layer chromatography (TLC)
Sigma-Aldrich
Avicel® PH-101, tested according to Ph. Eur.
Supelco
Cellulose, acid washed, from spruce, for column chromatography
Supelco
Cellulose, acid washed, powder, for column chromatography
Supelco
Cellulose, powder, for column chromatography
Supelco
Cellulose, DFS-0, microcrystalline, suitable for thin layer chromatography (TLC)
Supelco
Avicel® PH-101, ~50 μm particle size
Sigma-Aldrich
α-Cellulose, BioReagent, suitable for insect cell culture
Sigma-Aldrich
α-Cellulose, powder
Sigma-Aldrich
Sigmacell Cellulose, Type 20, 20 μm
Sigma-Aldrich
Sigmacell Cellulose, Type 50, 50 μm
Sigma-Aldrich
Sigmacell Cellulose, Type 101, Highly purified, fibers