EPA Method 608 Organochlorine Pesticides and PCBs
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ID： |
54F46EB60DBB41F5ACF4073C3ED1DE45 |
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文件大小(MB)： |
0.32 |
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页数： |
32 |
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文件格式： |
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日期： |
2003-1-16 |
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购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
APPENDIX A TO PART 136,METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND,INDUSTRIAL WASTEWATER,METHOD 608—ORGANOCHLORINE PESTICIDES AND PCBS,1. Scope and Application,1.1 This method covers the determination of certain organochlorine pesticides and PCBs.,The following parameters can be determined by this method:,Parameter STORET No. CAS No.,Aldrin . . . . . . . . . . . . . . . . . . . . . . . .,"-BHC . . . . . . . . . . . . . . . . . . . . . . . .,$-BHC . . . . . . . . . . . . . . . . . . . . . . . .,*-BHC . . . . . . . . . . . . . . . . . . . . . . . .,(-BHC . . . . . . . . . . . . . . . . . . . . . . . .,Chlordane . . . . . . . . . . . . . . . . . . . . .,4,4'-DDD . . . . . . . . . . . . . . . . . . . . . .,4,4'-DDE . . . . . . . . . . . . . . . . . . . . . .,4,4'-DDT . . . . . . . . . . . . . . . . . . . . . .,Dieldrin . . . . . . . . . . . . . . . . . . . . . . .,Endosulfan I . . . . . . . . . . . . . . . . . . .,Endosulfan II . . . . . . . . . . . . . . . . . .,Endosulfan sulfate . . . . . . . . . . . . . . .,Endrin . . . . . . . . . . . . . . . . . . . . . . . .,Endrin aldehyde . . . . . . . . . . . . . . . .,Heptachlor . . . . . . . . . . . . . . . . . . . .,Heptachlor epoxide . . . . . . . . . . . . . .,Toxaphene . . . . . . . . . . . . . . . . . . . . .,PCB-1016. . . . . . . . . . . . . . . . . . . . . .,PCB-1221 . . . . . . . . . . . . . . . . . . . . . .,PCB-1232 . . . . . . . . . . . . . . . . . . . . . .,PCB-1242 . . . . . . . . . . . . . . . . . . . . . .,PCB-1248 . . . . . . . . . . . . . . . . . . . . . .,PCB-1254 . . . . . . . . . . . . . . . . . . . . . .,PCB-1260 . . . . . . . . . . . . . . . . . . . . . .,39330 309-00-2,39337 319-84-6,39338 319-85-7,34259 319-86-8,39340 58-89-9,39350 57-74-9,39310 72-54-8,39320 72-55-9,39300 50-29-3,39380 60-57-1,34361 959-98-8,34356 33212-65-9,34351 1031-07-8,39390 72-20-8,34366 7421-93-4,39410 76-44-8,39420 1024-57-3,39400 8001-35-2,34671 12674-11-2,39488 1104-28-2,39492 11141-16-5,39496 53469-21-9,39500 12672-29-6,39504 11097-69-1,39508 11096-82-5,1.2 This is a gas chromatographic (GC) method applicable to the determination of the,compounds listed above in municipal and industrial discharges as provided under,40 CFR Part 136.1. When this method is used to analyze unfamiliar samples for any or,all of the compounds above, compound identifications should be supported by at least,one additional qualitative technique. This method describes analytical conditions for a,second gas chromatographic column that can be used to confirm measurements made,with the primary column. Method 625 provides gas chromatograph/mass spectrometer,(GC/MS) conditions appropriate for the qualitative and quantitative confirmation of,results for all of the parameters listed above, using the extract produced by this method.,1.3 The method detection limit (MDL, defined in Section 14.1)1 for each parameter is listed,in Table 1. The MDL for a specific wastewater may differ from those listed, depending,upon the nature of interferences in the sample matrix.,1.4 The sample extraction and concentration steps in this method are essentially the same as,in Methods 606, 609, 611, and 612. Thus, a single sample may be extracted to measure,the parameters included in the scope of each of these methods. When cleanup is,required, the concentration levels must be high enough to permit selecting aliquots, as,necessary, to apply appropriate cleanup procedures. The analyst is allowed the latitude,under Section 12, to select chromatographic conditions appropriate for the simultaneous,measurement of combinations of these parameters.,1.5 Any modification of this method, beyond those expressly permitted, shall be considered,as a major modification subject to application and approval of alternate test procedures,under 40 CFR Parts 136.4 and 136.5.,1.6 This method is restricted to use by or under the supervision of analysts experienced in,the use of a gas chromatograph and in the interpretation of gas chromatograms. Each,analyst must demonstrate the ability to generate acceptable results with this method,using the procedure described in Section 8.2.,2. Summary of Method,2.1 A measured volume of sample, approximately 1 L, is extracted with methylene chloride,using a separatory funnel. The methylene chloride extract is dried and exchanged to,hexane during concentration to a volume of 10 mL or less. The extract is separated by,gas chromatography and the parameters are then measured with an electron capture,detector.2,2.2 The method provides a Florisil column cleanup procedure and an elemental sulfur,removal procedure to aid in the elimination of interferences that may be enc……
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