Extraction and concentration of organic solutes from water

Goldberg, Marvin C.; DeLong, Lewis L.; Sinclair, Mark.

doi:10.1021/ac60323a020

Cited by 49 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 24-h-averaged concentrations of succinic, glutaric, and adipic acids each range from 0.2 to 0.5 pg m-3 in Los Angeles (11), although higher daytime values of 1.2 pg m-3 for glutaric acid and 1.6 pg m-3 for adipic acid have also been reported (12). Glutaric acid has been detected in rural areas of the Ohio River valley at concentrations of 0.002-0.05 Mg m-3 (13).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of organic material leached from coal by simulated rainfall

Fendinger¹,

Radway²,

Tuttle³

et al. 1989

Environ. Sci. Technol.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…A portion of the filtrate was used for dissolved organic carbon (DOC) analysis (10). The remaining filtrate (liquid or soluble fraction) was extracted for 24 h with dichloromethane in a continuous liquid-liquid extraction apparatus (11).…”

Section: Introductionmentioning

confidence: 99%

Characterization of organic material leached from coal by simulated rainfall

Fendinger¹,

Radway²,

Tuttle³

et al. 1989

Environ. Sci. Technol.

View full text Add to dashboard Cite

“…Small volumes (Ͻ4 L) can be batch-extracted in separatory funnels or in glass bottles, but for larger samples a continuous extraction technique is preferred. Goldberg et al [22] described a counter-flow LLE with three extraction stages which could use either lighter-thanwater or heavier-than-water solvents. A continuous LLE using flow through a Teflon helix to mix immiscible phases has been developed by Suffet and coworkers [10,23,24].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the goulden large‐sample extractor for acidic compounds in natural waters

Headley

Dickson

Swyngedouw

et al. 1996

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Abstract-The Goulden Large-Sample Extractor has received extensive use for monitoring and surveillance surveys of natural waters impacted by pulp and paper mills and agricultural runoff water. However, there are concerns about whether this sampler, which was originally developed for extractions of hydrophobic polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and other organochlorines, is suitable for sampling polar acidic compounds. The sampler was evaluated for recovery of surrogates for resin acids, fatty acids, herbicide acids, and chlorophenols from natural waters. Performance tests conducted in this work indicated that three surrogate compounds with K p (C DCM /C water pH 2 ) values from 16,700 to 1,260 were extracted from pH 2-adjusted 20-L water samples with an average recovery of 83.6%. The surrogate compounds with K p values less than 1,000 were extracted with significantly lower recoveries. The variability ranged from 10 to 36% relative standard deviation. Recoveries and variability compared favorably with reported recoveries and variabilities for neutral pesticide surrogates. Specific performance criteria (percent recoveries Ϯ standard deviation, number of determinations in parentheses) observed for the surrogates 2,4,6-tribromophenol, heptadecanoic acid, O-methylpodocarpic acid, dichlorophenylacetic acid, and 4-bromophenol were 89.5

show abstract

“…The most widely used evaporative concentration technique is the Kuderna-Danish (K-D) apparatus (20,21). This apparatus employs a three-ball Snyder column that furnishes about 2.7 plates (22). The snyder column is recommended in the EPA's 600 series, priority pollutants methods (1) and…”

mentioning

confidence: 99%