M
ANUAL
VOLUME I: Multiresidue Methods
U.S. Department of Health and Human Services ? Public Health Service
Food and Drug Administration
PESTICIDE
A
NALY TICAL
DEPA
RT
M
E
N
T
O
F
H
E
A
L
T
H
&
H
U
M
A
N
S
ERVICES
.
U
S
A
Pesticide Analytical Manual Vol. I
Transmittal No. 2000-1 (10/1999)
Form FDA 2905a (6/92)
PESTICIDE ANALYTICAL MANUAL VOLUME I
3rd Edition, 1994
Revised, September, 1996
Revised, October, 1997
Revised, October 1999
EDITORIAL STAFF
Carolyn M. Makovi, Editor
Bernadette M. McMahon, Editor Emerita
EDITORIAL BOARD
Marion Clower, Jr., Ph.D.
Charles H. Parfitt, Jr.
John J. O’Rangers, Jr., Ph.D.
Ronald R. Roy
Richard Schmitt, Ph.D., EPA
TECHNICAL ADVISORS
Jerry E. Froberg
Marvin L. Hopper
Fred R. Krick
Ronald G. Luchtefeld
Milton A. Luke
MANAGING EDITORS
Management Methods Branch
Office of the Associate Commissioner for Management and Operations
Design and Format: R.O.W. Sciences, Inc.
under contract to U.S. Food and Drug Administration
The mention of specific items of equipment and chemicals by brand name or the supplying of manufacturers’
names and addresses do not constitute endorsement of a product or source by the United States Government.
Pesticide Analytical Manual Vol. I TABLE OF CONTENTS
iii
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
PESTICIDE ANALYTICAL MANUAL
VOLUME I
TABLE OF CONTENTS
Introduction to PAM
Preface to PAM I 3rd edition
Guide to Use of PAM I
Chapter 1 Regulatory Operations
101 Regulatory Policy
102 Preparation of Analytical Samples
103 Method Application in Regulatory Analysis
104 Analytical Results
105 Analytical Limits of Quantitation
Chapter 2 General Analytical Operations and Information
201 Percentage Fat, Water, and Sugars in Foods
202 Basic Analytical Techniques
203 Equipment and Procedures for Comminuting
204 Special Reagent Preparation
205 Reference Standards
206 Quality Assurance/Quality Control
207 Laboratory Safety
208 Hazardous Waste Disposal
Chapter 3 Multiclass Multiresidue Methods
301 General Information
302 Method I for Nonfatty Foods
303 Method II for Nonfatty Foods
304 Method for Fatty Foods
Chapter 4 Selective Multiresidue Methods
401 Method for N-Methylcarbamates
402 Method for Acids and Phenols
403 Method for Phenylurea Herbicides
404 Method for Benzimidazoles
TABLE OF CONTENTS Pesticide Analytical Manual Vol. I
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)iv
Chapter 5 Gas Liquid Chromatography
501 General Information
502 Columns
503 Detectors
504 Quantitation
505 Bibliography
Chapter 6 High Performance Liquid Chromatography
601 General Information
602 Columns
603 Mobile Phase Selection, Preparation, and Delivery
604 Injection Systems
605 Detectors
606 Residue Identification and Quantitation
607 Quality Assurance and Troubleshooting
608 Bibliography
Appendix I PESTDATA
Appendix II Protocols and Reporting Forms for Testing Chemicals
Through PAM Multiresidue Methods
Index to PAM I Methods, by Chemicals Tested for Recovery
Index to Names Used for Chemicals in PAM I
Index to CAS Registry Numbers for Chemicals in PAM I
Index to Subjects
Transmittal No. 98-1 (10/97)
Form FDA 2905a (6/92)
v
Pesticide Analytical Manual Vol. I
PESTICIDE ANALYTICAL MANUAL
INTRODUCTION
The Food and Drug Administration (FDA) is responsible under the Federal Food,
Drug, and Cosmetic Act for enforcing tolerances established by the Environmental
Protection Agency (EPA) for amounts of pesticide residues that may legally re-
main on food (including animal feed). In meeting this responsibility, FDA collects
and analyzes food from commercial channels of trade for determining compliance
with EPA tolerances. The residue data gathered under this regulatory monitoring
program are also used for evaluating the extent and significance of pesticide
residues in the food supply.
The Pesticide Analytical Manual (PAM) is published by FDA as a repository of the
analytical methods used in FDA laboratories to examine food for pesticide resi-
dues for regulatory purposes.
1
The manual is organized according to the scope of
the analytical methods:
Volume? I contains multiresidue methods (MRMs) that are used by FDA on a
routine basis, because of their efficiency and broad applicability,
especially for analyzing foods of unknown pesticide treatment his-
tory.
Volume II contains methods designed for the analysis of commodities for resi-
dues of only a single compound (although some methods are ca-
pable of determining several related compounds). These methods
are most often used when the likely residue is known to the chemist
and/or when the residue of interest cannot be determined by com-
mon MRMs.
PAM is designed to be used by analysts experienced in trace residue analysis. All
of the techniques employed are subject to potential interferences from reagents,
apparatus, containers, contaminated air supply, and handling by personnel. The
experienced analyst is alert for these possibilities and recognizes the need to con-
firm results by other techniques that measure different chemical or physical prop-
erties of the analyte.
Experienced residue analysts are aware that no report of validation in another
laboratory can substitute for verification that the method does indeed work in the
analyst’s own laboratory. The analyst should verify method performance in each
particular application by a trial of the method that includes examination of re-
agent and sample blanks and measurement of the recovery of added analyte. The
editors invite analysts to report results of their experiences with PAM methods.
Revisions
Starting with transmittal 96-1 (9/96), revisions of PAM I have been issued in two ways:
(1) changes in most manual sections will be distributed as hard (paper) copies, with
symbols or marking lines that have been changed, and (2) updates to the tables
1
40 CFR 180.101 (c)
INTRODUCTION
Pesticide Analytical Manual Vol. I
vi
Transmittal No. 98-1 (10/97)
Form FDA 2905a (6/92)
in Chapters 3 and 4, Appendix I, and the indices to methods, names, and CAS Registry
numbers will be issued only via Internet. No hard copies will be distributed for the
latter updated sections, but updates will be available more frequently than in the past.
As chapter tables of contents are revised, they will include the date on which each
section within the chapter was transmitted; dates associated with those sections
distributed only electronically will reflect the most recent version at the time the table
of contents issued.
Internet Access to PAM I Files
PAM I is now available via Internet as Adobe Acrobat “portable document format”
(pdf) files. Pdf format permits the user to read and print the document from any
computer using appropriate free software.
To obtain a copy of PAM I files, go to the World Wide Web site at: http://
vm.cfsan.fda.gov/~frf/pami1.html. The resulting page describes PAM and provides
links to currently available files. Follow the instructions for downloading.
Adobe Acrobat Reader is required to view and print pdf files. Download a copy of this
free software from Adobe’s web site at http://www.adobe.com/acrobat/readstep.html.
A link to that site is provided on the PAM I page. Choose the version of Acrobat Reader
appropriate to your own computer system.
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
vii
Pesticide Analytical Manual Vol. I
PREFACE
PREFACE TO PAM I 3RD EDITION
The third edition of PAM I follows by 26 years the publication of the second
edition. During that period, 29 revisions were made, reflecting new or revised
methods, new technologies, and periodic updates of tables describing the capabili-
ties of PAM I methods. Preparation of PAM I 3rd edition was motivated by three
major deficiencies in the oft-revised 2nd edition: outdated material, obsolete or-
ganization of methods, and lack of consistent style.
Changes in multiresidue methods (MRMs) over the past 26 years have been sig-
nificant. Among the most notable changes are those related to instrumental deter-
minative techniques. Capillary columns and improved detectors have enhanced
GLC applications; HPLC, with its various operating modes, has extended
multiresidue capabilities to pesticides not amenable to GLC determination; and
mass spectrometry, in the form of compact, automated instruments readily com-
bined with GLC, has replaced many cumbersome, less sensitive, and less definitive
techniques. PAM I 3rd edition attempts to provide a more up-to-date picture of
the status of instrumentation currently used in FDA pesticide laboratories.
Despite advances in instrumentation, the basic approach to determination of trace
level residues has not departed dramatically from that used in the 1960s. Residues
are still extracted from the food commodity, isolated from co-extracted materials,
and determined by instrumental techniques that separate residues from one an-
other. While these analytical steps continue to be part of any MRM, methods
research, coupled with advances in analytical technologies, has produced MRMs
capable of determining a greater number of widely different types of pesticide
residues in a single extract, i.e., “multiclass MRMs.” Research has also produced
other MRMs that determine multiple residues of chemically related pesticides,
such as N-methylcarbamates; these types of methods are known as “selective MRMs.”
PAM I 2nd edition organized methods according to the chemical class of the
targeted residues, an organization that does not conform to modern methodology.
A major change in the PAM I 3rd edition is its grouping of methods into multiclass
MRMs (Chapter 3) and selective MRMs (Chapter 4).
Another change in method descriptions accommodates the choices available to
the experienced residue analyst. Typically, the residue laboratory chooses from
among several validated options within basic methodology; choices are dictated by
the particular commodity, available instrumentation, and targeted residues. Thus,
PAM I 3rd edition method descriptions consist of individual extraction, cleanup,
and determinative step modules, with indications of which combinations are vali-
dated. This organization permits easier reference to the precise combination of
steps used in an analysis and facilitates sharing particular methods with colleagues.
Future addition or revision of methods will be simplified by adding or replacing
only the necessary sections or modules. The numbering system used in Chapters
3 and 4 is explained in the Guide to PAM I.
Finally, PAM I 3rd edition incorporates a new and consistent design. A new num-
bering system is used, in which chapter and subsection numbers avoid the restric-
tive 2nd edition decimal system. Pages are numbered within major subsections.
Four indices are included: (1) to methods applicable for individual residues, (2)
to preferred names for pesticides, (3) to Chemical Abstracts Service (CAS) Regis-
try Numbers for the chemicals, and (4) to subjects by key word. An introductory
Guide to PAM I, on the following pages, explains the organization of chapters
Pesticide Analytical Manual Vol. I
viii
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
PREFACE
and the most useful path for finding pertinent information within the volume.
The user is urged to take advantage of these tools and to offer comments or
improvements that would make them more useful. PAM I remains, as always, a
loose-leaf volume, designed for continuing update.
The Editors acknowledge the continuing cooperation and support of the pesticide
chemists in FDA District and Regional Laboratories, District Research Centers,
and Division of Pesticides and Industrial Chemicals; those who contributed sub-
stantially to 3rd edition preparation are included as technical advisors on the title
page. Many of these advisors drafted or reviewed individual sections of the 3rd
edition, and all FDA chemists responded repeatedly to requests for information
about the applications of analytical methodology for pesticide residues. The edi-
tors also acknowledge the preparation of specialized sections by Mark Wirtz (QA/
QC and GLC Quantitation by Electronic Integration) and Ann Stack (Safety),
numerous editorial reviews performed by Norma Yess, secretarial assistance pro-
vided by Joan Duy, and comments on portions of the chapters on GLC and HPLC
by Dr. Colin Poole. Without the assistance of all these individuals, the 3rd edition
would not have been possible, and we are grateful to them.
December, 1993
ix
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
Pesticide Analytical Manual Vol. I GUIDE TO PAM I
GUIDE TO PAM I
Each chapter in Volume I covers a different topic. Effective use of PAM I requires
an understanding of the reasons that specific information is included in the chap-
ter in which it appears.
The user is advised to: (1) become familiar with the information in this manual
and where it is located, as explained on pages x–xi; (2) understand how to choose
and find appropriate methods, as detailed on pages xii–xiii; (3) review pages xiv–
xvi for other information about Volume I and comparison to the 2nd edition; and
(4) learn to use the indices provided.
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)x
GUIDE TO PAM I Pesticide Analytical Manual Vol. I
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Chapter 1 provides information and directions that reflect FDA regu-
latory policy. PAM I is not the authoritative source for publication of
FDA policy, but policy decisions that directly affect the application of
pesticide analytical methodology are included here as a service to
the manual user.
Chapter 3 includes multiclass multiresidue methods (MRMs), those
that are capable of determining pesticide residues of many chemical
types. The actual number and identity of the residues determinable
by the methods are usually dependent on the number and variety of
different determinative steps used to examine the extract. Each
method in this chapter is presented as a series of modules for
the extraction, cleanup, and determinative steps; a complete method
is defined as a combination of one or more modules from each
step. Complete methods that have been validated in interlaboratory
studies, including collaborative studies performed under the aus-
pices of AOAC International, are listed; these are sanctioned for use
in regulatory analyses. Other combinations of modules must be treated
as experimental methodology; additional supporting data for the
validity of the analysis are required when such combinations are
used in regulatory analyses.
Chapter 2 is a collection of data and directions on
a variety of unrelated topics, each of which pro-
vides background information needed to perform
methods of Chapters 3 and 4. Where information
in Chapters 1 and 2 appears to overlap (e.g., Sec-
tions 102, Preparation of Analytical Samples; and
203, Equipment and Procedures for Comminuting),
the material in Chapter 1 reflects the agency policy
that must be followed for enforcement of regula-
tions, and Chapter 2 provides information and hints
found useful by FDA pesticide chemists.
xi
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
Pesticide Analytical Manual Vol. I GUIDE TO PAM I
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Chapter 4 includes descriptions of selective MRMs, i.e., methods
designed to determine a limited number of residues related by
chemical structure. Selective MRMs target residues that are not
amenable to determination by the multiclass MRMs of Chapter
3. In actual practice, FDA laboratories often examine an extract
from a multiclass MRM with determinative step(s) from selec-
tive MRMs to broaden the scope of the analysis. When such uses
have been validated in interlaboratory studies, the determina-
tive steps are included as modules in Chapter 3 methodology.
When no interlaboratory validation has occurred, such combi-
nations are treated as experimental methodology, with the same
requirements noted above for use in regulatory analyses.
Tables of data are provided for each method in Chapters 3 and 4 to describe the
analytical behavior of each chemical tested through the method. Data are available
only for methods sanctioned for use by virtue of previous interlaboratory studies.
Chapter 5, GLC, and Chapter 6, HPLC, provide background information about
the two major determinative steps used in MRMs. Basic information about the
techniques is included, as well as specific directions for implementing use of the
instruments based on experiences in FDA laboratories. Manual users attempting
to employ the determinative steps defined in Chapters 3 and 4 may need to refer
to Chapters 5 and 6 for additional information and advice.
Appendix I combines information on GLC behavior of particular chemicals with
recoveries of the chemicals through Chapter 3 methods. Appendix II defines the steps
of protocols that were used to develop such method behavior data, for use in
continuing testing.
Chapter 1
Regulatory Operations
Chapter 2
General Analytical
Operations and Information
Chapter 3
Multiclass
MRMs
Chapter 5
GLC
Chapter 4
Selective
MRMs
Chapter 6
HPLC
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)xii
GUIDE TO PAM I Pesticide Analytical Manual Vol. I
STEP-BY-STEP SAMPLE ANALYSIS
PAM I provides information and/or directions to facilitate performance of each step
in sample analysis. Use these sections for information needed at each step:
REVIEW Secs. 101, Appropriate procedures for regulatory
PROCEDURES 103 analyses
PREPARE Sec. 102 Portion of commodity to include in analytical
SAMPLE sample, regulatory requirements for subsamples
Sec. 203 How to comminute or homogenize various
commodities
CHOOSE Based on commodity type:
METHOD Based on targeted residues:
REVIEW Sec. 201 Percentage fat, water, and sugars in commodity
BACKGROUND
INFORMATION Sec. 202 Detailed directions for column
(as needed) chromatography, solvent concentration
Sec. 204 Directions for preparing frequently used reagents
Sec. 205 Reference standards
Sec. 206 Quality assurance/quality control
Sec. 207 Safety
Sec. 208 Hazardous waste disposal
Chap. 5 Operation of GLC systems
Chap. 6 Operation of HPLC systems
PERFORM Chap. 3 Method directions
ANALYSIS Chap. 4
IDENTIFY Tables, Details of behavior of chemicals tested
RESIDUES Appendix I through methods, for tentative identification
QUANTITATE Secs. 504, Quantitation for GLC, HPLC
RESIDUES 606
CONFIRM Sec. 103 Approach to confirmation of residue
RESIDUES identity
REPORT Secs. 104, FDA procedures
RESIDUES 105
xiii
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
Pesticide Analytical Manual Vol. I GUIDE TO PAM I
(fruits and vegetables,
grains, etc.)
t
t
CHOICE OF METHOD BASED ON COMMODITY TYPE
PRODUCTS >2% FAT Sec. 304 Appropriate extraction for product; relatively
(dairy, meat, fish, nonpolar residues; actual residues covered
oilseeds, etc.) depends on determinative step(s) included
Sec. 401 N-methylcarbamate residues
Sec. 402 Acidic and phenolic residues
NONFATTY PRODUCTS Sec. 302 Nonpolar and polar residues, if no cleanup
(<2% fat) is used; actual residues covered depends on
determinative step(s) included
Sec. 303 Relatively nonpolar residues; actual residues
covered depends on determinative step(s)
included
Sec. 401 N-methylcarbamate residues
Sec. 402 Acidic and phenolic residues
Sec. 403 Phenylurea herbicide residues
Sec. 404 Benomyl (as MBC), thiophanate-methyl,
allophanate, and thiabendazole
EGGS, EGG WHITES Sec. 303 E2; relatively nonpolar residues
DRIED EGG WHITES Sec. 303 E3; relatively nonpolar residues
CHOICE OF METHOD BASED ON TARGETED RESIDUES
SPECIFIC RESIDUE(S) Use Index to Methods to find method(s)
applicable to targeted residue(s).
N-METHYL- Sec. 302 Use appropriate extraction + C3 or C4 +
CARBAMATES DL1. Confirm residues with Sec. 401.
ACIDS, PHENOLS Sec. 402 Confirm residues by use of additional
appropriate GLC systems.
PHENYLUREAS Sec. 403 Confirm residues as directed in method.
BENZIMIDAZOLES Sec. 404 Confirm residues as directed in method.
NO TARGET Sec. 301 Use scheme for multiclass MRM, Figure 301-a.
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)xiv
GUIDE TO PAM I Pesticide Analytical Manual Vol. I
NOTES ON TERMINOLOGY
Within PAM I, abbreviations are explained the first time they are used within any
major subsection of a chapter (Section 101, 204, etc.). Subsequent use within that
major subsection is not explained.
Certain common abbreviations are used without explanation throughout the volume;
these include units of length, weight, volume, time, and concentration.
PAM I alphabetized tables of data use the following sequence: [space] ! “ # $ % & ’ ()
* + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V
W X Y Z [\]. Because commas precede hyphens in this sequence, chemical names that
start with combinations of numbers, hyphens, and commas may not appear where
expected, e.g., 2,4,5,-T precedes 2-chloroethyl caprate.
"LIB" references refer to FDA’s in-house Laboratory Information Bulletins, issued by
Office of Regulatory Affairs, Division of Field Science, 5600 Fishers Lane, Rockville,
MD 20857. LIB references are used only for material that was not subsequently
published in the scientific literature; the latter reference is used whenever available.
NUMBERING OF METHODS MODULES
Methods described in Chapters 3 and 4 of this volume are presented as a series of
extraction, cleanup, and determination modules. This organization offers flexible
combination of modules as appropriate to the commodity being analyzed and/or the
residues being targeted. The analyst and laboratory are responsible for assuring that
the combination is valid.
Each method in Chapters 3 and 4 is treated as a major subsection, i.e., it is
numbered consecutively with a whole number: 301, 302, etc., 401, 402, etc. Within
those subsections, modules are numbered according to the following scheme:
Extraction E, followed by a number.
“E” module numbers are repeated in different methods (i.e., E1
of Section 302 is not the same as E1 of Section 303) so both the
section number and the module number must be included in a
reference. For example, 302 E1 defines an extraction step, but
E1 does not.
Cleanup C, followed by a number.
As above, “C” module numbers are repeated in different methods
and both the section number and the module number must be
referenced.
Determination DG, followed by a number, for GLC determinative steps.
DL, followed by a number, for HPLC determinative steps.
Unlike E and C numbers, there is no repetition of DG or DL
numbers, because the same determinative steps are used to exam-
ine cleaned-up extracts from many different methods. DG1 always
refers to the same GLC system, no matter what section of Chapter
3 (or 4) it is combined with.
xv
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)
Pesticide Analytical Manual Vol. I GUIDE TO PAM I
COMPARISON TO SECOND EDITION
Where PAM I 2nd edition material appears in the 3rd edition, section numbers are
different. The following list of equivalent references applies:
2nd Edition Description 3rd Edition
Methods
211.13a-k/231.1 (Mills) method for fatty foods extractions 304 E1-E5
211.14a Petroleum ether-acetonitrile partitioning 304 C1-C4
211.14b Petroleum ether-acetonitrile “backwash” not in 3rd ed
211.14c Partition chromatography not in 3rd ed
211.14d Florisil cleanup with ethyl ether/petr ether 304 C1, C3
211.15a-c Supplemental cleanups not in 3rd ed
211.15d Alkaline hydrolysis supplemental cleanup part of 304 C7
212.13a-d/232.1 (MOG) method for nonfatty foods extractions 303 E1-E5
212.14 Cross-reference to Florisil with ethers 303 C1
212.2 (Luke) method for nonfatty foods with 302 E1+C5
Florisil cleanup
221.1 (Hopper) method for chlorophenoxy acids, 402
phenols
232.2 Sweep co-distillation method for OPs not in 3rd ed
232.3 (Storherr) method for OPs not in 3rd ed
232.4/242.1 (Luke) method for nonfatty foods, no cleanup 302 E1
242.2 (Krause) method for N-methylcarbamates 401
242.3 (PICRC) method for benzimidazoles 404
242.4 (Luchtefeld) method for substituted ureas 403
251.1 Silicic acid separation of PCBs and pesticides not in 3rd ed
251.2 Derivatization and separation of PCBs, pesticides not in 3rd ed
252.1 Florisil elution with methylene chloride 303 C2,
304 C2, C4
253 Exhaustive extraction of organochlorine residues not in 3rd ed
Gas Chromatography (Chapter on GLC has been revised extensively; references to
equivalent sections reflect the same topic but not necessarily the same information.)
300 Application of GLC to pesticide residue analysis 501, 504
301 Columns 502
310 Detectors 503
311 Electron capture detector 503 B
312 Microcoulometric detector not in 3rd ed
313 Potassium chloride thermionic detector not in 3rd ed
314 Flame photometric detector 503 C
315 Electrolytic conductivity detector 503 D
316 N/P detector 503 E
320 Multiple detectors not in 3rd ed
330 GLC parameters and data tables 302 DG1-DG23,
Appendix I
HPLC (Chapter on HPLC has undergone only minor revision, but chapter and
sections are renumbered.)
500 General information 601, 608
510 HPLC columns 602
520 Mobile phase selection, preparation, delivery 603
Transmittal No. 94-1 (1/94)
Form FDA 2905a (6/92)xvi
GUIDE TO PAM I Pesticide Analytical Manual Vol. I
530 Injection systems 604
540 Detectors 605
550 Data handling 606
560 Quality assurance and troubleshooting 607
Tables
201 Chemicals tested through specific methods tables follow
method
sections
202 Percentage Fat, Water, and Sugar in Foods 201
Appendix I PESTDATA lists of GLC data and recoveries Appendix I
Other Information
110, 120 [Combined] lists of apparatus and reagents not in 3rd ed
130 Standards 205
141-142 Preparation of analytical portion, compositing 102, 203
143.1 Reporting analytical results 104 B
143.2 Analytical limit of quantitation 105
230 Organophosphate residues not in 3rd ed
Chapter 4 TLC not in 3rd ed
Chapter 6 Confirmation not in 3rd ed,
except 103 E