Determination of migratable organic tin in toy materials - Gas chromatography-tandem mass spectrometry
Warning - The use of this standard may involve some dangerous materials, operations and equipment, but it does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the users of this document to prepare corresponding safety and protection measures and to determine the applicability of regulatory limitations prior to use.
1 Scope
This document describes the gas chromatography-tandem mass spectrometry for the determination of 11 kinds of migratable organic tin in toy materials.
This document is applicable to the determination of 11 kinds of migratable organic tin in toy materials, including methyltin (MeT), Dimethyltin (DMT), dipropyltin (DProT), butyltin (BuT), dibutyltin (DBT), tributyltin (TBT), monooctyltin (MOT), dioctyltin (DOT), tetrabutyltin (TeBT), diphenyltin (DPhT), and triphenyltin (TPhT).
2 Normative references
The following documents contain provisions 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 (including any amendments) applies.
GB 6675.4 Safety of toys - Part 4: Migration of certain elements
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 Classification of toy materials
Toy materials are mainly classified into the following three types.
——Type I toy materials: dry, fragile, powdery or flexible materials, including solid toy materials that will release powdery materials during use.
——Type II toy materials: liquid or viscous materials, including liquid or viscous toy materials that may be ingested or come into contact with skin during use.
——Type III toy materials: scrapable materials, including solid toy materials with or without coating that can be ingested into the body by biting by mouth, tearing by teeth, sucking or licking. In addition, such materials also include other materials that are not covered by Types I and II toy materials.
Table 1 gives common toy materials and their classification, and other toy materials need to be classified in the above way.
5 Principle
6 Reagents and materials
7 Apparatus
8 Sample preparation and extraction procedure
9 Analytical procedure
10 Determination
11 Result calculation
12 Limit of quantification
13 Precision
14 Test report
Annex A
(Normative)
Information on 11 kinds of organic tin compounds and their internal standards
Annex B
(Informative)
Total ion flow chromatograms of 11 kinds of organic tin
Annex C
(Informative)
Precision test results
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification of toy materials
5 Principle
6 Reagents and materials
7 Apparatus
8 Sample preparation and extraction procedure
9 Analytical procedure
10 Determination
11 Result calculation
12 Limit of quantification
13 Precision
14 Test report
Annex A (Normative) Information on 11 kinds of organic tin compounds and their internal standards
Annex B (Informative) Total ion flow chromatograms of 11 kinds of organic tin
Annex C (Informative) Precision test results
