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BSI PD ISO/TS 21362:2018

$189.07

Nanotechnologies. Analysis of nano-objects using asymmetrical-flow and centrifugal field-flow fractionation

Published By Publication Date Number of Pages
BSI 2018 50
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PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
17 4 Symbols and abbreviated terms
19 5 Principles of operation
5.1 Field-flow fractionation (General)
20 5.2 Specific applications by applied field
5.2.1 Flow field
21 5.2.2 Centrifugal field
23 6 Method development for AF4
6.1 General
24 6.2 Sample specifications
25 6.3 Mobile phase specifications
26 6.4 Fractionation
6.4.1 Channel and membrane selection
28 6.4.2 Injection and relaxation
6.4.3 Optimizing flow conditions
6.4.4 Elution programme
29 6.4.5 Using FFF theory to select initial flow settings
30 7 Method development for CF3
7.1 General
7.2 Choice of mobile phase
7.3 Field strength selection
7.4 Field decay programme
31 7.5 Channel flow rate selection
7.6 Calculation of the relaxation time
7.7 ​Calculation of sample injection delay
8 Analysis of nano-objects
8.1 General
32 8.2 Online size analysis
33 8.3 Online concentration analysis
8.3.1 General
8.3.2 Mass-based methods
34 8.3.3 Number-based methods
35 8.4 Online material identification or composition
36 8.5 Off-line analysis (Fraction collection)
9 Qualification, performance criteria and measurement uncertainty
9.1 System qualification and quality control
9.1.1 Basic system qualification
37 9.1.2 Focusing performance
38 9.1.3 Flow rate of the carrier liquid
9.1.4 Separation field
9.2 Method performance criteria
9.2.1 Recovery
39 9.2.2 Selectivity
9.2.3 Retention
9.2.4 Resolution
9.3 Method precision and measurement uncertainty
40 10 General procedures for measurement of samples
10.1 General
10.2 Calibration of retention time for online size analysis
10.2.1 Calibration of the AF4 channel
41 10.2.2 Calibration of AF4 retention time for online size measurements
10.3 AF4 general measurement procedure
42 10.4 CF3 general measurement procedure
43 11 Test report
11.1 General
11.2 Apparatus and measurement parameters
11.2.1 AF4 recording/reporting specifications
44 11.2.2 CF3 recording/reporting specifications
11.3 Reporting test results
45 Bibliography
BSI PD ISO/TS 21362:2018
$189.07