ASTM C1284-18
(Practice)Standard Practice for Electrodeposition of the Actinides for Alpha Spectrometry
Standard Practice for Electrodeposition of the Actinides for Alpha Spectrometry
SIGNIFICANCE AND USE
5.1 The determination of actinide elements by alpha spectrometry measurement is an essential part of many environmental research, bioassay, and monitoring programs. Alpha spectrometry measurements identify and quantify the alpha-emitting actinide elements. A variety of separation methods will typically precede the electrodeposition of a sample for alpha spectrometry measurements. In addition to the electrodeposition procedure presented in this practice, the scientific literature contains other procedures for actinide electrodeposition.
Note 1: An alternate method for mounting actinides for alpha spectrometry measurements by coprecipitation with neodymium fluoride is described in Practice C1163.
SCOPE
1.1 This practice covers the preparation of separated actinide fractions for alpha spectrometry measurement.2 It is applicable to any of the actinides that can be dissolved in dilute ammonium sulfate solution. Examples of applicable actinide fractions would be an elution from an ion exchange / extraction chromatography separation or the final strip from a solvent extraction separation.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1284 − 18
Standard Practice for
1
Electrodeposition of the Actinides for Alpha Spectrometry
This standard is issued under the fixed designation C1284; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Practice
4.1 Guidance is provided for the electrodeposition of sepa-
1.1 This practice covers the preparation of separated ac-
2
rated actinide fractions onto metal discs.This practice is based
tinide fractions for alpha spectrometry measurement. It is
applicabletoanyoftheactinidesthatcanbedissolvedindilute on cathodic deposition of the hydrated oxides of the actinides
from an acidic medium containing an ammonium salt. The
ammonium sulfate solution. Examples of applicable actinide
fractionswouldbeanelutionfromanionexchange/extraction resultant electrodeposited samples are suitable for alpha spec-
trometry measurements.
chromatography separation or the final strip from a solvent
extraction separation.
5. Significance and Use
1.2 The values stated in SI units are to be regarded as
5.1 The determination of actinide elements by alpha spec-
standard. No other units of measurement are included in this
trometry measurement is an essential part of many environ-
standard.
mental research, bioassay, and monitoring programs. Alpha
1.3 This standard does not purport to address all of the
spectrometry measurements identify and quantify the alpha-
safety concerns, if any, associated with its use. It is the
emitting actinide elements. A variety of separation methods
responsibility of the user of this standard to establish appro-
will typically precede the electrodeposition of a sample for
priate safety, health, and environmental practices and deter-
alphaspectrometrymeasurements.Inadditiontotheelectrode-
mine the applicability of regulatory limitations prior to use.
position procedure presented in this practice, the scientific
1.4 This international standard was developed in accor-
literature contains other procedures for actinide electrodeposi-
dance with internationally recognized principles on standard-
tion.
ization established in the Decision on Principles for the
NOTE 1—An alternate method for mounting actinides for alpha spec-
Development of International Standards, Guides and Recom-
trometry measurements by coprecipitation with neodymium fluoride is
mendations issued by the World Trade Organization Technical
described in Practice C1163.
Barriers to Trade (TBT) Committee.
6. Interferences
2. Referenced Documents
6.1 Any element present in the separated fraction which is
3
2.1 ASTM Standards:
capable of cathodic electrodeposition will be present on the
210
C859Terminology Relating to Nuclear Materials metal disc. In particular Po (5.30 MeV) deposited on the
232
C1163PracticeforMountingActinidesforAlphaSpectrom-
discwouldinterferewiththeyielddeterminationof U(5.32
243
etry Using Neodymium Fluoride
MeV) or Am (5.28 MeV) tracers used in the determination
241
D1193Specification for Reagent Water
of isotopic uranium and Am (5.15 MeV), respectively.
6.2 Incomplete separation of rare earth elements or incom-
3. Terminology
plete wet ashing for the removal of organic material will
3.1 Except as otherwise defined herein, definitions of terms
decrease the efficiency of the electrodeposition and may result
are as given in Terminology C859.
in a thick deposit unsuitable for alpha spectrometry measure-
ment.
1
This practice is under the jurisdiction of ASTM Committee C26 on Nuclear
−2
Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of 6.3 The quantity of actinide should be such that <5 µg cm
Test.
are electrodeposited on the metal disc. Thicker deposits are
CurrenteditionapprovedJune1,2018.PublishedJuly2018.Originallyapproved
typically unsuitable for measurement by alpha spectrometry
in 1994. Last previous edition approved in 2010 as C1284–10. DOI: 10.1520/
due to the resulting attenuation and decrease in energy resolu-
C1284-18.
2
Based on Talvitie, N. A., “Electrodeposition of Actinides for Alpha Spectro-
tion.
metric Determination,” Analytical Chemistry, Vol 44, 1972, pp. 280–283.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7. Apparatus
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 Electrodeposition Power Supply—Constant current, ad-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. justable from 0 to 2
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1284 − 10 C1284 − 18
Standard Practice for
1
Electrodeposition of the Actinides for Alpha Spectrometry
This standard is issued under the fixed designation C1284; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
2
1.1 This practice covers the preparation of separated actinide fractions for alpha spectrometry measurement. It is applicable to
any of the actinides that can be dissolved in dilute ammonium sulfate solution. Examples of applicable actinide fractions would
be the final an elution from an ion exchange / extraction chromatography separation or the final strip from a solvent extraction
separation.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 ASTM Standards:
C859 Terminology Relating to Nuclear Materials
C1163 Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride
D1193 Specification for Reagent Water
3. Terminology
3.1 Except as otherwise defined herein, definitions of terms are as given in Terminology C859.
4. Summary of Practice
4.1 Guidance is provided for the electrodeposition of separated actinide fractions onto metal discs. This practice is based on
cathodic deposition of the hydrated oxides of the actinides from an acidic medium containing an ammonium salt. The resultant
electrodeposited samples are suitable for alpha spectrometry measurements.
5. Significance and Use
5.1 The determination of actinide elements by alpha spectrometry measurement is an essential part of many environmental
research, bioassay, and monitoring programs. Alpha spectrometry measurements identify and quantify the alpha-emitting actinide
elements. A variety of separation methods will typically precede the electrodeposition of a sample for alpha spectrometry
measurements. In addition to the electrodeposition procedure presented in this practice, the scientific literature contains other
procedures for actinide electrodeposition.
NOTE 1—An alternate method for mounting actinides for alpha spectrometry measurements by coprecipitation with neodymium fluoride is described
in Practice C1163.
1
This practice is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of Test.
Current edition approved June 1, 2010June 1, 2018. Published July 2010July 2018. Originally approved in 1994. Last previous edition approved in 20052010 as C1284 - 00
(2005).C1284 – 10. DOI: 10.1520/C1284-10.10.1520/C1284-18.
2
Based on Talvitie, N. A., “Electrodeposition of Actinides for Alpha Spectrometric Determination,” Analytical Chemistry, Vol 44, 1972, pp. 280–283.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1284 − 18
6. Interferences
6.1 Any element present in the separated fraction which is capable of cathodic electrodeposition will be present on the metal
210 232
disc. In particular Po (5.30 MeV) deposited on the disc would interfere with the yield determination of U (5.32 MeV) or
243 241
Am (5.28 MeV) tracers used in the determination of isotopic uranium and Am (5.15 MeV), respectively.
6.2 Incomplete separation of rare earth elements or incomplete wet ashing for the removal of organic material will decrease the
efficiency of the electrodeposit
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.