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GB/T 32669-2016Extinction spectra characterization of the aggregate structure of gold nanorods (English PDF)

金纳米棒聚集体结构的消光光谱表征

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Level / Type

National · Recommended

Issue date

April 25, 2016

Implementation date

November 1, 2016

Scope

GB/T 32669-2016 is the English-translated version of 金纳米棒聚集体结构的消光光谱表征.

GB/T 32669-2016 is the Chinese standard "Extinction spectra characterization of the aggregate structure of gold nanorods". Its scope clause reads: This standard specifies a method for characterizing the structure of gold nanorod aggregates based on extinction spectroscopy.

This standard applies to extinction spectroscopy to characterize the structure of gold nanorod aggregates, and other noble metal nanoclusters can also be used as reference. Its clauses include normative reference documents; terms and definitions.

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Document preview — GB/T 32669-2016

National Standard of the People's Republic of China

ICS: 71.040.50
Classification: G 80

Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Preface
Introduction
1 Scope
2 normative reference document
3 Terms and definitions
4 Principle
5 instrument
7 Measurement method
9 measurement results
Appendix A (informative) Calculation example of gold nanoparticle agglomeration parameter A
Appendix B (informative) EE and SS assembly characterization Example
Appendix C (informative) Evaluation of Uncertainty in Measurement Results
Appendix D (informative appendix) Reunion parameters Test report format

1 Scope

This standard specifies a method for characterizing the structure of gold nanorod aggregates based on extinction spectroscopy.

This standard applies to extinction spectroscopy to characterize the structure of gold nanorod aggregates, and other noble metal nanoclusters can also be used as reference.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 13966 terminology for analytical instruments

GB/T 19619 Glossary of Materials for Nanomaterials

GB/T 24369.1-2009 Characterization of gold nanorods - Part 1. UV/Vis/near infrared absorption spectroscopy

3 terms and definitions

GB/T 13966, GB/T 19619 and GB/T 24369.1-2009 and the following terms and definitions apply to this document.

3.1 Aggregates

Strongly bound or fused particles of new particles, the outer surface of which may be significantly smaller than its individual particle surface area

Sum [2-3].

Note 1. The forces that support the aggregates are strong forces, such as covalent bonds or from sintering or complex physical entanglement.

Note 2. Aggregates are also referred to as secondary particles, while source particles are referred to as primary particles.

3.2 Agglomerate

The aggregates, aggregates, or mixtures of weakly bound particles have a similar surface area to the sum of the surface area of their individual particles [2-3].

Note 1. The forces that support the aggregates are weak, such as van der Waals forces or simple physical entanglement.

Note 2. Agglomerates are also referred to as secondary particles, while source particles are referred to as primary particles.

3.3 Flocculation

The dispersed particles are contacted and adhered together to form a larger group of processes (IUPAC definition [4]).

3.4 Flocculation parameter

The integral area of the surface plasmon resonance peak in the gold nanoparticle extinction spectrum.

3.5 Aggregation parameter

The flocculation parameters in the gold nanoparticle extinction spectrum are divided by the maximum absorbance. […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 32 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 19619

Similar standards

GB/T 32006-2015|GB/T 24369.1-2009|GB/T 32668-2016|GB/T 19619-2004|GB/T 25248-2010

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