Textiles - Determination of total content of boron
WARNING——Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document specifies the method for determination of total content of boron using inductively coupled plasma optical emission spectrometer (ICP-OES).
This document is applicable to various textile materials and their products.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
After the specimen is subject to microwave digestion by concentrated nitric acid-hydrogen peroxide, the digestion solution is diluted to the scale. The emission intensity of boron and internal standard yttrium is determined by ICP-OES, and their content is determined by internal standard method. The total content of boron in the specimen is calculated according to the concentration of boron determined by reference to the standard working curve.
Contents 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents and materials 6 Instruments and apparatus 7 Analytical steps 8 Result calculation and expression 9 Limit of quantification, recovery rate and precision 10 Test report Annex A (Informative) ICP-OES spectrogram of boron
Textiles - Determination of total content of boron
WARNING——Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document specifies the method for determination of total content of boron using inductively coupled plasma optical emission spectrometer (ICP-OES).
This document is applicable to various textile materials and their products.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
After the specimen is subject to microwave digestion by concentrated nitric acid-hydrogen peroxide, the digestion solution is diluted to the scale. The emission intensity of boron and internal standard yttrium is determined by ICP-OES, and their content is determined by internal standard method. The total content of boron in the specimen is calculated according to the concentration of boron determined by reference to the standard working curve.
Contents of GB/T 42700-2023
Contents
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Instruments and apparatus
7 Analytical steps
8 Result calculation and expression
9 Limit of quantification, recovery rate and precision
10 Test report
Annex A (Informative) ICP-OES spectrogram of boron
