EPA-RCA: 8015C: Nonhalogenated Organics by GC-FID
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Official Method Name
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Nonhalogenated Organics Using GC/FID |
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Current Revision
| Revision 4, June 2003 |
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Media
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VARIOUS |
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Instrumentation
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Gas Chromatography with Flame Ionization Detection |
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Method Subcategory
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Organic |
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Method Source
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Citation
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Brief Method Summary
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Depending on the analytes of interest, samples are introduced into the GC by a variety of techniques, including: purge-and-trap, direct injection of aqueous samples, injection of the concentrate from azeotropic distillation, vacuum distillation, or following solvent extraction. Analytes are detected by a flame ionization detector. |
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Scope and Application
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This method determines the concentration of various nonhalogenated volatile and semivolatile organic compounds in surface water, ground water, and solid matrices. In addition, gasoline range organics and diesel range organics may also be analyzed by this method. |
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Applicable Concentration Range
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Not Available. |
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Interferences
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(A) Contamination: Sample contamination may occur by diffusion of volatile organics through the septum seal during shipment and storage. The analysis of trip blanks will identify this problem. (B) Matrix interferences: Since the FID is non-selective, there is a potential for the interference of non-target compounds. (C) Memory Interferences: Carryover may occur whenever high and low concentration samples are analyzed in sequence. Rinse the sample syringe or purging device between samples. Also, unusually concentrated samples should be followed by injection of a solvent blank. |
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Quality Control Requirements
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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. |
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Sample Handling
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See See the introductory material to SW-846 Chapter Four, "Organic Analytes," and Method 5035 for information.
If the headspace technique is used, also see Method 5021. |
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Maximum Holding Time
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See SW-846 Chapter Four for information |
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Relative Cost
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$201 to $400 |
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Sample Preparation Methods
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See Method 5000 |
