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SN/T 3781-2014: Determination of α-bromocinamic aldehyde in textiles for import and export - Gas chromatography-mass spectrometry
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SN/T 3781-2014: Determination of α-bromocinamic aldehyde in textiles for import and export - Gas chromatography-mass spectrometry

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Determination of α-bromocinamic aldehyde in textiles for import and export - Gas chromatography-mass spectrometry People's Republic of China Entry-Exit Inspection and Quarantine Standards α- bromo cinnamic aldehyde determination in the import and export of textiles Gas chromatography - mass spectrometry Issued on. 2014-01-13 2014-08-01 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. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Chen Jun, Gu Juan red, Pan Kwai, Geng Yanhong, Wu, Xu Zhendong. α- bromo cinnamic aldehyde determination in the import and export of textiles Gas chromatography - mass spectrometry

1 Scope

This standard specifies the textiles α- bromo cinnamic aldehyde gas chromatography - mass spectrometry. This standard applies to the determination textiles α- bromo cinnamic aldehyde.

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. GB/T 8170 repair value expressed about the rules and limit values and judgment Principle 3 After hexane as the extraction solvent by ultrasonic extraction textiles α- bromo cinnamic aldehyde, and the extract was concentrated by rotary evaporation, using gas Chromatography - mass spectrometry - selected ion monitoring method (GC/MS-SIM) was measured, quantified by external standard.

4 Reagents and materials

4.1 hexane (HPLC grade). 4.2 α- bromo cinnamic aldehyde Standard substance. Formula C9H7BrO, CAS number. 5443-49-2, purity ≥99%. 4.3 α- bromo cinnamic aldehyde stock standard solution. Accurately weigh 100mg (accurate to 0.0001g) α- bromo cinnamic aldehyde content standards in 100mL Flask, diluted with n-hexane (4.1) to the mark, mix and concentration of the solution is 1000mg/L (cryopreservation). NOTE. The standard stock solution -18 ℃ dark preservation for 3 months. 4.4 α- bromo cinnamic aldehyde standard solution. take appropriate α- bromo cinnamic aldehyde standard stock solution (4.3) as required with n-hexane (4.1) stepwise Diluted to appropriate concentration series of standard working solution. NOTE. The standard working solution using now. 5. Apparatus 5.1 Gas chromatography - mass spectrometry (GC-MS). equipped with electronic bombardment source (EI). 5.2 Analysis of balance. a sense of the amount of 0.0001g and 0.001g. 5.3 vortex mixer. 5.4 rotary evaporator. 5.5 nitrogen blowing instrument. 5.6 Ultrasonic Cleaning. frequency of 40kHz. 5.7 filter. 0.45μm, organic phase. ...