SN/T 2210-2008 (SN/T2210-2008, SNT 2210-2008, SNT2210-2008)
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| SN/T 2210-2008 | English | 719 |
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Determination of hexavalent chromium in health foods. IC-ICP-MS method
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SN/T 2210-2008
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| SN/T 2210-2021 | English | 245 |
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Determination of hexavalent chromium in foods for export
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SN/T 2210-2021
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Newer version: SN/T 2210-2021 Standards related to: SN/T 2210-2021
| Standard ID | SN/T 2210-2008 (SN/T2210-2008) | | Description (Translated English) | Determination of hexavalent chromium in health foods. IC-ICP-MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Word Count Estimation | 18,149 | | Date of Issue | 2008-11-18 | | Date of Implementation | 2009-06-01 | | Drafting Organization | China Shanghai Entry-Exit Inspection and Quarantine Bureau picking | | Administrative Organization | National Certification and Accreditation Administration Committee | | Regulation (derived from) | National Quality Inspection [2008] No. 577 | | Proposing organization | National Certification and Accreditation Administration Standardization Committee | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China | | Summary | This standard specifies the health food hexavalent chromium ion chromatography inductively coupled plasma mass spectrometry. This standard applies to hypoglycemic milk, nutritional supplements, health drinks Determination of hexavalent chromium. | SN/T 2210-2008
Determination of hexavalent chromium in health foods.IC-ICP-MS method
Exit inspection and quarantine industry standard book People's Republic of China
Determination of hexavalent chromium in health food
Ion Chromatography - Inductively Coupled Plasma Mass Spectrometry
Posted 2008-11-18
2009-06-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard and Appendix B 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 Shanghai Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Yang Zhenyu, Guo Dehua, Yang Kecheng, Ge Liping.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of hexavalent chromium in health food
Ion Chromatography - Inductively Coupled Plasma Mass Spectrometry
1 Scope
This standard specifies the health food hexavalent chromium ion chromatography - inductively coupled plasma mass spectrometry.
This standard applies to milk powder, nutrition powder, health drinks Determination of hexavalent chromium in hypoglycemic.
2 Method summary
Hexavalent chromium in the sample using an alkaline solution of sodium hydroxide and sodium carbonate extract, the extract by ion chromatography - inductively coupled plasma mass spectrometry
Measured, quantified by external standard.
3 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade, water resistivity greater than or equal 18.2MΩ/cm ultrapure water.
3.1 Nitric acid. pure class distinctions.
3.2 ammonia.
3.3 Magnesium chloride hexahydrate.
3.4 sodium hydroxide.
3.5 anhydrous sodium carbonate.
3.6 dipotassium hydrogen.
3.7 potassium dihydrogen phosphate
3.8 The alkaline extraction solution. 0.5mol/L sodium hydroxide (NaOH) and 0.28mol/L sodium carbonate (as Na2CO3) mixed solution. Take 20.0g
Sodium hydroxide (3.4) and 30.0g anhydrous sodium carbonate (3.5) was dissolved in water, water volume to 1000mL, mix well and set aside.
3.9 buffer solution. dipotassium hydrogen 8.71g (3.6) and 6.80g of potassium dihydrogen phosphate (3.7) was dissolved in water, dilute to 100mL, and mix.
3.10 hexavalent chromium standard solution. GB W (E) 080257, the standard value of 0.1g/L, or equivalent person.
3.11 hexavalent chromium standard intermediate solution. the hexavalent chromium standard solution (3.10) progressively diluted with water to 50μg/L, and the solution with the existing Pro.
3.12 mobile phase (56mmol/L nitrate -67mmol/L ammonia, pH = 9.3). accurate Pipette 2mL nitric acid (3.1) and ammonia 2.5mL
Water (3.2) solution in a large beaker, add water to about 500mL, and mix. With ammonia (3.2) or nitric acid (3.1) was adjusted to pH 9.3. shift
Into 500mL volumetric flask, and water volume. Before use, the ultrasonic treatment 10min.
3.13 microporous membrane. 0.45μm, aqueous-phase system.
4 instruments and equipment
4.1 Ion Chromatography - inductively coupled plasma mass spectrometer. with the column oven.
4.2 Analysis of balance. a sense of the amount of 0.001g.
4.3 ultrasonic generator.
4.4 mill.
4.5 vortex mixer.
4.6 oscillator.
4.7 Centrifuge. speed greater than or equal 10000r/min, the minimum temperature is less than or equal 4 ℃.
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