USGS-NWQL: O-3118-83: Base/Neutral Extractable Compounds in Water by GC-MS
- Summary
- Analytes
- Revision
- Data and Sites
Official Method Name
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Base/Neutral Extractable Compounds, Total Recoverable, Gas Chromatography/Mass Spectrometric | ||||
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Current Revision
| 1987 | ||||
Media
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WATER | ||||
Instrumentation
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Gas Chromatography with Mass Spectrometry Detection | ||||
Method Subcategory
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Organic | ||||
Method Source
|
USGS-NWQL
|
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Citation
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Methods for the Determination of Organic Substances in Water and Fluvial Sediments, Techniques of Water-Resources Investigations of the United States Geological Survey, Book 5, Chapter A3 Edited by R.L. Wershaw, M.J. Fishman, R.R Grabbe, and L.E. Lowe | ||||
Brief Method Summary
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Organic base/neutral compounds are extracted from water and water-suspended-sediment mixtures with methylene chloride. The extract is concentrated and analyzed by gas chromatography (GC) using a flame-ionization detector (FID) or a mass spectrometric (MS) detector. | ||||
Scope and Application
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This method is suitable for the determination of methylene chloride extractable base/neutral compounds in water and water-suspended-sediment mixtures containing at least 2 ug/L of the analyte. | ||||
Applicable Concentration Range
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2-40 | ||||
Interferences
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Any compound having chemical and physical properties similar to an analyte of interest may interfere. | ||||
Quality Control Requirements
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Quality-control samples area analyzed at a minimum of one in every ten samples. These QC samples include at least one of each of the following: blanks, quality control samples, third party check solutions, replicates, and spikes. Correlation coefficients for calibration curves must be at least 0.99. QC samples must fall within 1.5 standard deviations of the mean value. If all of the data-acceptance criteria in the SOPs are met, then the analytical data are acceptable. | ||||
Sample Handling
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Description: 1 L Glass bottle, amber bottle baked at 450oC by laboratory. SOME GCC's should be filtered. Treatment and Preservation: DO NOT RINSE BOTTLE. Do not fill bottle beyond shoulder. Chill sample and maintain at 4oC, ship immediately. | ||||
Maximum Holding Time
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7 days after arrival at the National Water Quality Laboratory | ||||
Relative Cost
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$201 to $400 | ||||
Sample Preparation Methods
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This method has 41 analytes associated with it.
Analyte | Detection Level |
Bias | Precision | Pct False Positive |
Pct False Negative |
Spiking Level |
---|---|---|---|---|---|---|
1,2,4-Trichlorobenzene(120-82-1)
|
N/A | N/A | N/A | |||
1,2-Dichlorobenzene(95-50-1)
|
N/A | N/A | N/A | |||
1,3-Dichlorobenzene(541-73-1)
|
N/A | N/A | N/A | |||
1,4-Dichlorobenzene(106-46-7)
|
N/A | N/A | N/A | |||
2,3,7,8-Tetrachlorodibenzo-p-dioxin(1746-01-6)
|
N/A | N/A | N/A | |||
2-Chloronaphthalene(91-58-7)
|
N/A | N/A | N/A | |||
3,3'-Dichlorobenzidine(91-94-1)
|
N/A | N/A | N/A | |||
4-Bromophenyl phenyl ether(101-55-3)
|
N/A | N/A | N/A | |||
4-Chlorophenylphenyl ether(7005-72-3)
|
N/A | N/A | N/A | |||
Acenaphthene(83-32-9)
|
N/A | N/A | N/A | |||
Acenaphthylene(208-96-8)
|
N/A | N/A | N/A | |||
Anthracene(120-12-7)
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N/A | N/A | N/A | |||
Benz[a]anthracene(56-55-3)
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N/A | N/A | N/A | |||
Benzidine(92-87-5)
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N/A | N/A | N/A | |||
Benzo(a)pyrene(50-32-8)
|
N/A | N/A | N/A | |||
Benzo(b)fluoranthene(205-99-2)
|
N/A | N/A | N/A | |||
Benzo(g,h,i)perylene(191-24-2)
|
N/A | N/A | N/A | |||
Benzo(k)fluoranthene(207-08-9)
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N/A | N/A | N/A | |||
Butyl benzyl phthalate(85-68-7)
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N/A | N/A | N/A | |||
Di-n-butyl phthalate(84-74-2)
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N/A | N/A | N/A | |||
Dibenzo(a,h)anthracene(53-70-3)
|
N/A | N/A | N/A | |||
Diethyl phthalate(84-66-2)
|
N/A | N/A | N/A | |||
Dimethyl phthalate(131-11-3)
|
N/A | N/A | N/A | |||
Fluoranthene(206-44-0)
|
N/A | N/A | N/A | |||
Hexachlorobenzene(118-74-1)
|
N/A | N/A | N/A | |||
Hexachlorobutadiene(87-68-3)
|
N/A | N/A | N/A | |||
Hexachlorocyclopentadiene(77-47-4)
|
N/A | N/A | N/A | |||
Indeno(1,2,3-cd)pyrene(193-39-5)
|
N/A | N/A | N/A | |||
N-Nitrosodiphenylamine(86-30-6)
|
N/A | N/A | N/A | |||
NDMA(62-75-9)
|
N/A | N/A | N/A | |||
NDPA(621-64-7)
|
N/A | N/A | N/A | |||
Naphthalene(91-20-3)
|
N/A | N/A | N/A | |||
Nitrobenzene(98-95-3)
|
N/A | N/A | N/A | |||
Organics, semivolatile(E-12884)
|
N/A | N/A | N/A | |||
Organochlorine pesticides(E-12851)
|
N/A | N/A | N/A | |||
Phenanthrene(85-01-8)
|
N/A | N/A | N/A | |||
Volatile organic compounds(E-12419)
|
N/A | N/A | N/A | |||
bis(2-Chloroethoxy)methane(111-91-1)
|
N/A | N/A | N/A | |||
bis(2-Chloroethyl) ether(111-44-4)
|
N/A | N/A | N/A | |||
bis(2-Chloroisopropyl) ether(108-60-1)
|
N/A | N/A | N/A | |||
bis(2-Ethylhexyl) phthalate(117-81-7)
|
N/A | N/A | N/A |
Precision Descriptor Notes: | Surrogate recoveries must be from 40 percent to 130 percent unless a matrix effect can be demonstrated. Water and water-suspended-sediment samples were spiked with surrogate standards and recoveries were determined by two operators in a single laboratory over an 8 month period. Results are as follows: 1-Fluoronaphthalene was detect with the ion of mass 146 and analyzed over the concentration range 48-104 ng/uL. 45 samples were analyzed with mean recovery of 65% and 29%-RSD. p-Dibromobenzene was detected with the ion of mass 236 and analyzed over a concentration range of 51-107 ng/uL. 46 samples were analyzed with a mean recovery of 67% and 26%-RSD. 2,2'-Difluorobiphenyl was detected with the ion of mass 190 and over the concentration range of 43-79 ng/uL. 46 samples were analyzed with 68% mean recovery and 20%-RSD. Additional precision information is available in the official method publication. |
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Detection Level Note: | Method detection limits (MDLs) were determined for this method using the procedures of the U.S. Environmental Protection Agency (1997). |
Revision | PDF/Link |
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1987 |
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