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Determination of lead and cadmium in cosmetics grade talc. Graphite furnace atomic absorption spectrometry method
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SN/T 2292-2009
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Basic data | Standard ID | SN/T 2292-2009 (SN/T2292-2009) | | Description (Translated English) | Determination of lead and cadmium in cosmetics grade talc. Graphite furnace atomic absorption spectrometry method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | D54 | | Classification of International Standard | 73.080 | | Word Count Estimation | 7,787 | | Date of Issue | 2009-02-20 | | Date of Implementation | 2009-09-01 | | Quoted Standard | GB/T 2010; GB/T 6682 | | Regulation (derived from) | National Quality Inspection [2009] No. 67 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the cosmetic grade talc, lead, cadmium graphite furnace atomic absorption method. This standard applies to cosmetic grade talc, lead, cadmium graphite furnace atomic absorption spectrometry. | SN/T 2292-2009: Determination of lead and cadmium in cosmetics grade talc. Graphite furnace atomic absorption spectrometry method
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Determination of lead and cadmium in cosmetics grade talc.Graphite furnace atomic absorption spectrometry method
Exit inspection and quarantine industry standard book People's Republic of China
Cosmetic grade talc detection of lead, cadmium
Graphite Furnace Atomic Absorption Spectrometry
Posted 2009-02-20
2009-09-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Liaoning Entry-Exit-Entry Inspection and Shanxi People's Republic of China
Quarantine Bureau.
The main drafters of this standard. Sunzhe Ping, Yang Xiaobing, Huang Daliang, Chen Xinyue, Ren Yuwei.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Cosmetic grade talc detection of lead, cadmium
Graphite Furnace Atomic Absorption Spectrometry
1 Scope
This standard specifies the cosmetic grade talc of lead and cadmium by graphite furnace atomic absorption spectrometry.
This standard applies to cosmetic grade talc lead, cadmium graphite furnace atomic absorption spectrometry.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2010 talc bulk sampling and sample preparation method
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
3 Method summary
Hot dilute nitric acid solution to extract talc Pb and Cd elements by graphite furnace atomic absorption spectrophotometer, peak area, marked
Standard curve quantification.
4 Reagents
Unless otherwise indicated, the reagents are pure class distinctions. Water for the two water GB/T 6682 regulations.
4.1 nitric acid (ρ = 1.42g/mL).
4.2 nitrate solution (0.5mol/L). 31.3mL amount of nitric acid (4.1), diluted with water to 1000mL.
4.3 lead standard stock solution. Direct use of certified standard solution, its concentration of 1000μg/mL.
4.4 cadmium standard stock solution. Direct use of certified standard solution, its concentration of 1000μg/mL.
4.5 lead standard working solution. the lead standard stock solution (4.3) with 0.5mol/L nitrate (4.2) stepwise diluted to 1.0μg/mL.
4.6 Cadmium standard working solution. cadmium standard stock solution (4.4) with 0.5mol/L nitrate (4.2) by serial dilution to 0.010μg/mL.
5. Apparatus
5.1 Atomic absorption spectrophotometer. with graphite furnace atomic devices.
5.2 water bath.
5.3 microwave digestion.
5.4 ultrasonic device.
Than 5.5 colorimetric tube. 25mL.
5.6 Analysis of balance. a sense of the amount of 0.1mg.
6 Sample
Samples according to GB/T 2010 were prepared, then milled so that all through 325 mesh, save backup in a desiccator.
7 Procedure
7.1 Sample
Weigh 1g ~ 2g (accurate to 0.0001g) sample 3 parts, parallel measurement. Each sample was measured at least twice, whichever results
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