This method is for the determination of semivolatile organic compounds (SVOCs) in finished drinking water, source water, or drinking water in any treatment stage. This method is applicable to a wide range of organic compounds that are efficiently partitioned from the water sample onto a Carbon-18 organic phase chemically bonded to a solid matrix in a disk or cartridge, and sufficiently volatile and thermally stable for gas chromatography.
SVOC's are extracted from a water sample using liquid-soild extraction (LSE). One L of sample is passed through a cartridge or disk containing a solid matrix with a chemically bonded Carbon-18 organic phase. The organic compounds are eluted from the LSE cartridge or disk with small quantities of ethyl acetate followed by methylene chloride, the extract is concentrated and an aliquote is injected into a high resolution fused silica capillary column of a gas chromatography/mass spectrometry (GC/MS) system.
Sample collection equipment includins samplers and tubing should be free of plastic parts which may leach interfering anlaytes into the water.
Addition of the preservatives sodium sulfite and HCl to the sample bottles prior to shipping to the sampling site is not allowed by the method. The preservation needs to be done at the time of sample collection.
Note: Typical holding times are 14 days from sample collection to extraction. However, if the following analytes are to be determined, the samples cannot be held for 14 days and must be extracted immediately after collection and preservation: carboxin, diazinon,disulfoton, disulfoton sulfoxide, fenamiphos, and terbufos. If cyanizine is to be determined, a separate sample must be collected.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Samples must be extracted within 14 days from collection and analyzed within 30 days of extraction if stored at 4°C. |
| Preservatives: | All samples should be iced or refrigerated at 4°C and kept in the dark from the time of collection until extraction. Add of 40-50 mg of sodium sulfite to each water sample if residual chlorine is present. Adjust pH to <2 with 6N HCl at the sampling site. |
| Required Preps: | 1L Glass bottles with Teflon-lined lids |
| Collection Method: | Grab sampling |
| Analytical Methodology: | GC/MS |
| Documentation: | 
525.2
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Chlorpropham | C10H12ClNO2 |
101-21-3 |
0.1 |
µg/L |
| Simetryn | C8H15N5S |
1014-70-6 |
0.1 |
µg/L |
| Heptachlor epoxide | C10H5Cl7O |
1024-57-3 |
0.05 |
µg/L |
| Endosulfan sulfate | C9H6Cl6O4S |
1031-07-8 |
0.1 |
µg/L |
| Di(2-ethylhexyl)adipate | C22H42O4 |
103-23-1 |
0.6 |
µg/L |
| Aroclor-1260 | 11096-82-5 |
|||
| Aroclor-1254 | 11097-69-1 |
|||
| Aroclor-1221 | 11104-28-2 |
|||
| Aroclor-1232 | 11141-16-5 |
|||
| Pebulate | C10H21NOS |
1114-71-2 |
0.1 |
µg/L |
| Cycloate | C11H21NOS |
1134-23-2 |
0.05 |
µg/L |
| MGK-264 | C17H25NO2 |
113-48-4 |
0.1 |
µg/L |
| bis-(2-Ethylhexyl)phthalate | C24H38O4 |
117-81-7 |
0.6 |
µg/L |
| Di-n-octyl phthalate | C24H38O4 |
117-84-0 |
0.1 |
µg/L |
| Hexachlorobenzene | C6Cl6 |
118-74-1 |
0.05 |
µg/L |
| Anthracene | C14H10 |
120-12-7 |
0.02 |
µg/L |
| 2,4-Dinitrotoluene | C7H6N2O4 |
121-14-2 |
0.1 |
µg/L |
| Malathion | C10H19O6PS2 |
121-75-5 |
0.1 |
µg/L |
| Simazine | C7H12ClN5 |
122-34-9 |
0.05 |
µg/L |
| Aroclor-1248 | 12672-29-6 |
|||
| Aroclor-1016 | 12674-11-2 |
|||
| Pyrene | C16H10 |
129-00-0 |
0.05 |
µg/L |
| Terbufos | C9H21O2PS3 |
13071-79-9 |
0.1 |
µg/L |
| Dimethylphthalate | C10H10O4 |
131-11-3 |
0.5 |
µg/L |
| Ethoprop | C8H19O2PS2 |
13194-48-4 |
0.05 |
µg/L |
| Propazine | C9H16ClN5 |
139-40-2 |
0.1 |
µg/L |
| Merphos | C12H27PS3 |
150-50-5 |
µg/L | |
| Napropamide | C17H21NO2 |
15299-99-7 |
0.1 |
µg/L |
| Trifluralin | C13H16F3N3O4 |
1582-09-8 |
0.1 |
µg/L |
| 2,4,5-Trichlorobiphenyl (29) | 15862-07-4 |
0.05 |
µg/L | |
| Alachlor (Lasso) | C14H20ClNO2 |
15972-60-8 |
0.05 |
µg/L |
| Atraton | C9H17N5O |
1610-17-9 |
0.1 |
µg/L |
| Prometon | C10H19N5O |
1610-18-0 |
0.5 |
µg/L |
| 2,3-Dichlorobiphenyl (5) | C12H8Cl2 |
16605-91-7 |
0.1 |
µg/L |
| 2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid dimethyl ester (Dacthal) | C10H6Cl4O4 |
1861-32-1 |
0.05 |
µg/L |
| Chlorothalonil (Bravo) | C8Cl4N2 |
1897-45-6 |
0.1 |
µg/L |
| Atrazine | C8H14ClN5 |
1912-24-9 |
0.05 |
µg/L |
| Benzo(g,h,i)perylene | C22H12 |
191-24-2 |
0.05 |
µg/L |
| Propachlor | C11H14ClNO |
1918-16-7 |
0.05 |
µg/L |
| Vernolate | C10H21NOS |
1929-77-7 |
0.05 |
µg/L |
| Indeno(1,2,3-cd)pyrene | C22H12 |
193-39-5 |
0.05 |
µg/L |
| Butylate | C11H23NOS |
2008-41-5 |
0.1 |
µg/L |
| Benzo[b]fluoranthene | C20H12 |
205-99-2 |
0.02 |
µg/L |
| Fluoranthene | C16H10 |
206-44-0 |
0.1 |
µg/L |
| Benzo[k]fluoranthene | C20H12 |
207-08-9 |
0.02 |
µg/L |
| Acenaphthylene | C12H8 |
208-96-8 |
0.1 |
µg/L |
| Metribuzin (Sencor) | C8H14N4OS |
21087-64-9 |
0.05 |
µg/L |
| Cyanazine | C9H13ClN6 |
21725-46-2 |
0.1 |
µg/L |
| Chrysene | C18H12 |
218-01-9 |
0.02 |
µg/L |
| Molinate | C9H17NOS |
2212-67-1 |
0.1 |
µg/L |
| Fenamiphos (Nemacur) | C13H22NO3PS |
22224-92-6 |
1 |
µg/L |
| Tetrachlorvinphos | C10H9Cl4O4P |
22248-79-9 |
0.1 |
µg/L |
| Butachlor | C17H26ClNO2 |
23184-66-9 |
0.05 |
µg/L |
| Pronamide (Kerb, Propyzamide) | C12H11Cl2NO |
23950-58-5 |
0.1 |
µg/L |
| 2,2',4,4'-Tetrachlorobiphenyl (47) | 2437-79-8 |
0.1 |
µg/L | |
| Disulfoton sulfone | C8H19O4PS3 |
2497-06-5 |
0.05 |
µg/L |
| Disulfoton sulfoxide | 2497-07-6 |
0.1 |
µg/L | |
| Etridiazole | C5H5Cl3N2OS |
2593-15-9 |
0.09 |
µg/L |
| Chloroneb | C8H8Cl2O2 |
2675-77-6 |
0.1 |
µg/L |
| Norflurazon | C12H9ClF3N3O |
27314-13-2 |
0.1 |
µg/L |
| Benthiocarb | C12H16ClNOS |
28249-77-6 |
0.2 |
µg/L |
| Chlorpyrifos (Dursban) | C9H11Cl3NO3PS |
2921-88-2 |
0.05 |
µg/L |
| Disulfoton | C8H19O2PS3 |
298-04-4 |
1 |
µg/L |
| Aldrin | C12H8Cl6 |
309-00-2 |
0.05 |
µg/L |
| Bromacil | C9H13BrN2O2 |
314-40-9 |
0.2 |
µg/L |
| alpha-BHC | C6H6Cl6 |
319-84-6 |
0.1 |
µg/L |
| beta-BHC | C6H6Cl6 |
319-85-7 |
0.1 |
µg/L |
| delta-BHC | C6H6Cl6 |
319-86-8 |
0.1 |
µg/L |
| Endosulfan II | C9H6Cl6O3S |
33213-65-9 |
0.1 |
µg/L |
| Diazinon | C12H21N2O3PS |
333-41-5 |
0.1 |
µg/L |
| Tebuthiuron | C9H16N4OS |
34014-18-1 |
2.4 |
µg/L |
| trans-Nonachlor | C10H5Cl9 |
39765-80-5 |
0.05 |
µg/L |
| 2,3,3',4,4',5',6,6'-Octachlorobiphenyl (201) | 40186-71-8 |
0.05 |
µg/L | |
| Pendimethalin (Prowl) | C13H19N3O4 |
40487-42-1 |
0.1 |
µg/L |
| Tricyclazole | C9H7N3S |
41814-78-2 |
2.4 |
µg/L |
| Triadimefon (Bayleton) | C14H16ClN3O2 |
43121-43-3 |
0.1 |
µg/L |
| 4,4'-DDT | C14H9Cl5 |
50-29-3 |
0.1 |
µg/L |
| Benzo[a]pyrene | C20H12 |
50-32-8 |
0.02 |
µg/L |
| Chlorobenzilate (Acaraben) | C16H14Cl2O3 |
510-15-6 |
0.1 |
µg/L |
| alpha-Chlordane | C10H6Cl8 |
5103-71-9 |
0.05 |
µg/L |
| gamma-Chlordane | C10H6Cl8 |
5103-74-2 |
0.05 |
µg/L |
| Metolachlor | C15H22ClNO2 |
51218-45-2 |
0.05 |
µg/L |
| Hexazinone | C12H20N4O2 |
51235-04-2 |
0.14 |
µg/L |
| trans-Permethrin | C21H20Cl2O3 |
51877-74-8 |
0.1 |
µg/L |
| Carboxin | C12H13NO2S |
5234-68-4 |
1 |
µg/L |
| 2,2',3,3',4,4',6-Heptachlorobiphenyl (171) | 52663-71-5 |
0.1 |
µg/L | |
| Aroclor-1242 | 53469-21-9 |
|||
| Dibenz[a,h]anthracene | C22H14 |
53-70-3 |
0.05 |
µg/L |
| cis-Permethrin | C21H20Cl2O3 |
54774-45-7 |
0.1 |
µg/L |
| Ethyl parathion | C10H14NO5PS |
56-38-2 |
0.1 |
µg/L |
| Benzo(a)anthracene | C18H12 |
56-55-3 |
0.05 |
µg/L |
| Caffeine | C8H10N4O2 |
58-08-2 |
0.02 |
µg/L |
| gamma-BHC (Lindane) | C6H6Cl6 |
58-89-9 |
0.04 |
µg/L |
| Terbacil | C9H13ClN2O2 |
5902-51-2 |
0.1 |
µg/L |
| Terbutylazine | C9H16ClN5 |
5915-41-3 |
0.1 |
µg/L |
| Fluridone | C19H14F3NO |
59756-60-4 |
1 |
µg/L |
| 2,2',4,4',5,6'-Hexachlorobiphenyl (154) | 60145-22-4 |
0.1 |
µg/L | |
| Fenarimol | C17H12Cl2N2O |
60168-88-9 |
1 |
µg/L |
| 2,2',3',4,6-Pentachlorobiphenyl (98) | 60233-25-2 |
0.05 |
µg/L | |
| Dimethoate | C5H12NO3PS2 |
60-51-5 |
0.1 |
µg/L |
| Dieldrin | C12H8Cl6O |
60-57-1 |
0.2 |
µg/L |
| 2,6-Dinitrotoluene | C7H6N2O4 |
606-20-2 |
0.1 |
µg/L |
| Dichlorvos | C4H7Cl2O4P |
62-73-7 |
0.05 |
µg/L |
| Endrin | C12H8Cl6O |
72-20-8 |
0.2 |
µg/L |
| Methoxychlor | C16H15Cl3O2 |
72-43-5 |
0.1 |
µg/L |
| 4,4'-DDD | C14H10Cl4 |
72-54-8 |
0.1 |
µg/L |
| 4,4'-DDE | C14H8Cl4 |
72-55-9 |
0.1 |
µg/L |
| Prometryn | C10H19N5S |
7287-19-6 |
0.5 |
µg/L |
| Endrin aldehyde | C12H8Cl6O |
7421-93-4 |
0.1 |
µg/L |
| EPTC | C9H19NOS |
759-94-4 |
0.1 |
µg/L |
| Heptachlor | C10H5Cl7 |
76-44-8 |
0.03 |
µg/L |
| Hexachlorocyclopentadiene | C5Cl6 |
77-47-4 |
0.05 |
µg/L |
| Mevinphos (Phosdrin) | C7H13O6P |
7786-34-7 |
0.079 |
µg/L |
| Isophorone | C9H14O |
78-59-1 |
0.5 |
µg/L |
| Toxaphene | C10H10Cl8 |
8001-35-2 |
2 |
µg/L |
| Acenaphthene | C12H10 |
83-32-9 |
0.1 |
µg/L |
| Ametryne | C9H17N5S |
834-12-8 |
0.1 |
µg/L |
| Diethylphthalate | C12H14O4 |
84-66-2 |
0.5 |
µg/L |
| Di-n-butylphthalate | C16H22O4 |
84-74-2 |
1 |
µg/L |
| Phenanthrene | C14H10 |
85-01-8 |
0.04 |
µg/L |
| Butylbenzylphthalate | C19H20O4 |
85-68-7 |
0.5 |
µg/L |
| Fluorene | C13H10 |
86-73-7 |
0.05 |
µg/L |
| Pentachlorophenol | C6HCl5O |
87-86-5 |
1 |
µg/L |
| Terbutryn | C10H19N5S |
886-50-0 |
0.35 |
µg/L |
| Naphthalene | C10H8 |
91-20-3 |
0.3 |
µg/L |
| Methyl Paraoxon | 950-35-6 |
0.25 |
µg/L | |
| Diphenamid | C16H17NO |
957-51-7 |
0.05 |
µg/L |
| Endosulfan I | C9H6Cl6O3S |
959-98-8 |
0.1 |
µg/L |
| Acetochlor | C14H20ClNO2 |
34256-82-1 |
0.1 |
µg/L |
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.