EPA-RCA: 8111: Haloethers in Water, Soil, and Waste Samples by Chromatography and Electron Capture Detection

Summary
Analytes
Revision
Data and Sites

Official Method Name

Haloethers by Gas Chromatography

Current Revision

Revision 0, December 1996

Media

VARIOUS

Instrumentation

Gas Chromatography with Electron Capture Detection

Method Subcategory

Organic

Method Source

EPA-RCA

Citation

SW-846 Online: Test Methods for Evaluating Solid Waste, Physical/Chemical Methods

Brief Method Summary

Samples are extracted and cleaned up (according to sample matrix) and the solvent appropriately exchanged. The samples are directly injected into a gas chromatograph where they are analyzed using a wide-bore capillary column and an electron capture detector.

Scope and Application

This method determines the concentration of haloethers in water, soil, and waste samples by using wide-bore open-tubular, capillary-column gas chromatography procedures while utilizing either single-column/single detector or dual column/dual-detector approaches.

Applicable Concentration Range

Not Available.

Interferences

(A) Memory Interferences: Carryover may occur whenever high and low concentration samples are analyzed in sequence. For prevention, rinse the sample syringe between samples with solvent. Also, unusually concentrated samples should be followed by the analysis of a solvent blank. Additional solvent blanks interspersed with the sample extracts should be analyzed whenever a solvent blank indicates cross-contamination.
(B) Coeluting Compounds: Some compounds coelute using this procedure, in which case, they must be reported as coeluting. The samples may be reanalyzed by GC/MS. Dichlorobenzenes are known to coelute with haloethers under certain conditions, in which case, it may be necessary to analyze the extract with two different column packings to resolve all of the compounds.
(C) Electronegative Compound Interferences: Interferences may be caused by halogenated compounds, phthalates, and other oxygenated compounds, in which case, second column or GC/MS confirmation is necessary to ensure proper analyte identification.
(D) Method interferences: Contaminants in solvents, reagents, glassware, and other sample processing hardware may lead to elevated baselines and/or other interferences in the gas chromatograms. Routine analysis of reagent blanks should be performed as a check for method interferences.
(E) Refer to Methods 3500, 3600, and 8000.

Quality Control Requirements

Refer to Chapter One and Methods 8000, 3500, and 5000 for specific QC procedures. Procedures include: validation of sample preparation, introduction, and analysis, initial demonstration of proficiency, calibration verification, evaluation of retention times, analysis of method blanks, matrix spikes, duplicates, surrogates, and laboratory control samples. In addition, refer to Method 8000, Section 8.0 for QC procedures on preparation and analysis.

Sample Handling

See SW-846 Chapter Four for information. See the introductory material to this chapter, "Organic Analytes", Section 4.1. Extracts must be stored in the dark at or below 4^oC.

Maximum Holding Time

Aqueous samples - 7 days (sample), 40 days (extract). Solid samples - 14 days (sample), 40 (extract). Also, see SW-846 Chapter Four for information.

Relative Cost

$201 to $400

Sample Preparation Methods

3500, 3510, 3520, 3600, 3620, 3640, 3660

This method has 14 analytes associated with it.

Analyte	Detection Level	Bias	Precision	Spiking Level
2,4,5-Trichlorophenyl 4-nitrophenyl ether(22532-68-9) 2,4,5-Trichlorophenyl 4-nitrophenyl ether	N/A	N/A	N/A
2,4,6-Trichlorophenyl 4-nitrophenyl ether(1836-77-7) 2,4,6-Trichlorophenyl 4-nitrophenyl ether	N/A	N/A	N/A
2,4-Dibromophenyl 4-nitrophenyl ether(2671-93-4) 2,4-Dibromophenyl 4-nitrophenyl ether	N/A	N/A	N/A
2,4-Dichlorophenyl 3-methyl-4-nitrophenyl ether(42488-57-3) 2,4-Dichlorophenyl 3-methyl-4-nitrophenyl ether	N/A	N/A	N/A
2,6-Dichlorophenyl 4-nitrophenyl ether(2093-28-9) 2,6-Dichlorophenyl 4-nitrophenyl ether	N/A	N/A	N/A
2-Chlorophenyl 4-nitrophenyl ether(2091-61-4) 2-Chlorophenyl 4-nitrophenyl ether Benzene, 1-chloro-2-(4-nitrophenoxy)- Ether, o-chlorophenyl p-nitrophenyl- o-Chlorophenyl p-nitrophenyl ether	N/A	N/A	N/A
3-Chlorophenyl 4-nitrophenyl ether(2303-23-3) 3-Chlorophenyl 4-nitrophenyl ether	N/A	N/A	N/A
4-Bromophenyl phenyl ether(101-55-3) 1-Bromo-4-phenoxybenzene 4-Bromodiphenylether 4-Bromophenyl phenyl ether Benzene, 1-bromo-4-phenoxy- Bromophenyl, 4-phenyl ether Phenyl-4-bromophenyl ether p-Bromodiphenyl ether p-Bromophenyl phenyl ether	N/A	97% Rec (SL)	2.10 % RSD (SL)	0.50 ug/g
4-Chlorophenyl 4-nitrophenyl ether(1836-74-4) 4-Chlorophenyl 4-nitrophenyl ether	N/A	N/A	N/A
4-Chlorophenylphenyl ether(7005-72-3) 1-Chloro-4-phenoxybenzene 4-Chlorodiphenyl ether 4-Chlorophenyl ether 4-Chlorophenylphenyl ether Benzene, 1-chloro-4-phenoxy Chlorophenyl, 4-phenyl ether Monochlorodiphenyl oxide p-Chlorophenyl phenyl ether	N/A	92% Rec (SL)	3.50 % RSD (SL)	5.00 ug/g
Organics, semivolatile(E-12884) Organics, semivolatile Semi-volatile organics Semivolatile organics	N/A	N/A	N/A
bis(2-Chloroethoxy)methane(111-91-1) 1,1'-(methylenebis(oxy))bis(2-chloro-Ethane) Dichloromethoxy ethane Ethane, 1,1'-[methylenebis(oxy)]bis[2-chloro- Methane, bis(2-chloroethoxy)- bis(2-Chloroethoxy)methane	N/A	N/A	N/A
bis(2-Chloroethyl) ether(111-44-4) 1,1'-Oxybis(2-chloro-ethane) 2,2'-Dichlorodiethyl ether 2,2'-Dichloroethyl ether BCEE Chlorex Dichloroethyl ether Dichloroethyl ether,beta,beta'- Ethane, 1,1'-oxybis[2-chloro- Ether, bis(2-chloroethyl) bis(2-Chloroethyl) ether sym-Dichloroethyl ether	N/A	N/A	N/A
bis(2-Chloroisopropyl) ether(108-60-1) 2,2'-Dichloroisopropyl ether 2,2'-oxybis(1-chloropropane) DCIP Dichlorodiisopropyl ether Ether, bis(2-chloro-1-methylethyl) Propane, 2,2'-oxybis[1-chloro- bis(2-Chloro-1-methylethyl) ether bis(2-Chloroisopropyl) ether	N/A	112% Rec (SL)	4.30 % RSD (SL)	2.50 ug/g

Precision Descriptor Notes:	Precisions and accuracy values are based on the analyses of spiked sandy loam soils.
Detection Level Note:	None.

Revision	PDF/Link
Revision 0, December 1996

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EPA-RCA: 8111: Haloethers in Water, Soil, and Waste Samples by Chromatography and Electron Capture Detection

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