ASTM D4128-01

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An American National Standard
Designation: D 4128 – 01
Standard Guide for
Identification and Quantitation of Organic Compounds in
Water by Combined Gas Chromatography and Electron
1
Impact Mass Spectrometry
This standard is issued under the fixed designation D 4128; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 1.4 The guide is applicable to either packed or capillary
column gas chromatography, including wide-bore capillary
1.1 This guide covers the identification and quantitation of
columns. Because of their greatly enhanced resolution, capil-
organic compounds by gas chromatography/mass spectrometry
lary columns are strongly recommended.
(GC-MS) (electron impact) that are present or extracted from
1.5 This standard does not purport to address all of the
water and are capable of passing through a gas chromatograph
safety concerns, if any, associated with its use. It is the
without alteration. The guide is intended primarily for solu-
responsibility of the user of this standard to establish appro-
tions for which 1 ng or more of any component of interest can
priate safety and health practices and determine the applica-
be introduced onto a gas chromatographic column. This guide
bility of regulatory limitations prior to use.
has the advantage of providing tentative identifications of
volatile and semi-volatile organics, but is restricted to (a)
2. Referenced Documents
compoundsforwhichreferencespectracanbeobtainedand(b)
2.1 ASTM Standards:
compoundsthatcanbeseparatedbygaschromatography(GC).
3
D 1066 Practice for Sampling Steam
These restrictions are imposed on the guide, but are not a
3
D 1129 Terminology Relating to Water
limitation of the technique. The guide is written for, but not
D 1192 Specification for Equipment for Sampling Water
restricted to, analysis using automated data acquisition and
3
and Steam in Closed Conduits
handling.
3
D 1193 Specification for Reagent Water
1.2 Guidelines have been included for quantitation using
D 2908 Practice for Measuring Volatile Organic Matter in
ASTM Test Methods D3871, D3973, and other GC-MS
4
Water by Aqueous-Injection Gas Chromatography
volatile/semivolatile procedures used for environmental analy-
2
D 3370 Practices for Sampling Water from Closed Con-
sis . A detection amount of 1 ng can only be considered
3
duits
approximate. The actual detection limits for each component
D 3694 Practices for Preparation of Sample Containers and
must be determined in each laboratory. Actual detection
4
for Preservation of Organic Constituents
amounts will vary with the complexity of the matrix, the kind
D 3871 Test Method for Purgeable Organic Compounds in
and condition of the GC-MS system, the sample preparation
4
Water Using Headspace Sampling
technique chosen, and the application of cleanup techniques to
D 3973 Test Method for Low-Molecular Weight Haloge-
the sample extract, if any. Lower levels of detection can be
4
nated Hydrocarbons in Water
achieved using modern sensitive instruments or with selected
D 5175 Test Method for Organohalide Pesticides and Poly-
ion monitoring (SIM). To determine the interlaboratory detec-
chlorinated Biphenyls in Water by Microextraction and
tion estimate (IDE) and the interlaboratory quantitation esti-
4
Gas Chromatography
mate (IQE), follow Practices D 6091 and D 6512.
D 5316 Test Method for 1,2-Dibromoethane and 1,2-
1.3 The guide is applicable to the identification of many
Dibromo-3-Chloropropane in Water by Microextraction
organic constituents of natural and treated waters. It includes
4
and Gas Chromatography
all modes of sample introduction, including injection of or-
D 5317 Test Method for the Determination of Chlorinated
ganic extracts, direct aqueous injection, and purge and trap
Organic Acid Compounds in Water by Gas Chromatogra-
techniques.
4
phy with an Electron Capture Detector
D 5789 Practice for Writing Quality Control Specifications
1
This guide is under the jurisdiction ofASTM Committee D19 on Water and is 4
for Standard Test Methods for Organic Constituents
the direct responsibility of Subcommittee D19.06 on Methods for Analysis for
Organic Substances in Water
Current edition approved July 10, 2001. Published October 2001. Originally
published as D 4128 – 82. Last previous edition D 4128 – 94.
2 3
U.S. EPA Methods 624 and 8260 (volatiles) and U.S. EPA Methods 625 and Annual Book of ASTM Standards, Vol 11.01.
4
8270 (semivolatiles) are suitable for quantitation. Annual Book of ASTM Standards, Vol 11.02.
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