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SN/T 3058-2011: Determination of organotin compounds in paper box imported
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SN/T 3058-2011: Determination of organotin compounds in paper box imported

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Determination of organotin compounds in paper box imported People's Republic of China Entry-Exit Inspection and Quarantine Standards Detection organotin compound imports carton Issued on. 2011-09-09 2012-04-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Lu Gang, Cao Lijing, Zhang Bin, Ding Yu, Luo Xuan, Zhang Hui. Detection organotin compound imports carton

1 Scope

This standard specifies the method for the detection of imported carton organotin compounds. This standard applies to the determination of organotin compounds importing carton products. The standard of each organic tin component detection limit of 1.0mg/kg.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

The solution was extracted with methanol as ultrasonic carton sample extraction to tetraethyl borohydride derivatization of the extract of trimethyltin (TMT), monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), a phenyl tin (MPT) and triphenyltin (TPT) into Derivatized line was measured, quantified by external standard gas chromatography mass spectrometry.

4 Reagents and materials

Unless otherwise indicated, the reagents used for the standard AR test water should comply with the three water GB/T 6682 stipulated. 4.1 n-hexane. 4.2 methanol. 4.3 trimethyltin (TMT), certified standards. 4.4 monobutyltin (MBT), certified standards. 4.5 Dibutyltin (DBT), certified standards. 4.6 tributyltin (TBT), certified standards. 4.7 a phenyl tin (MPT), certified standards. 4.8 triphenyltin (TPT), certified standards. 4.9 tetraethyl borohydride certified standards. 4.10 anhydrous sodium acetate. 4.11 acetic acid. 4.12 silica gel, silica particle size 40μm. 4.13 Organic filter membrane. 50mm × 0.45μm. 4.14 anhydrous sodium sulfate solution. take the appropriate amount of anhydrous sodium sulfate burning 4h at 650 ℃, after cooling stored in a desiccator. 4.15 tetraethyl borohydride solution. in a fume hood under nitrogen, weighed 0.2g (accurate to 0.1mg) tetraethyl borohydride in 10mL Brown Color volumetric flask, dissolved in water, set the volume. This concentration of 2%. NOTE. This solution is unstable and should be using now. ...