纺织学报 ›› 2010, Vol. 31 ›› Issue (12): 89-92.

• 染整与化学品 • 上一篇    下一篇

染色纺织品中禁用偶氮染料的高效液相色谱-电喷雾电离质谱联用法测定

钱微君1;阮勇1;石东亮1;金美菊1;陈建勇2   

  1. 1. 宁波市纤维检验所 2. 浙江理工大学
  • 收稿日期:2009-11-13 修回日期:2010-07-21 出版日期:2010-12-15 发布日期:2010-12-15
  • 通讯作者: 钱微君

Determination of banned AZO colourants in dyed textiles by liquid chromatography- electrospray ionization mass spectrometry

QIAN Weijun1;RUAN Yong1;SHI Dongliang1;JIN Meiju1;CHEN Jianyong2   

  1. 1.Ningbo Fiber Inspection Institute 2.Zhejiang Sci-Tech Univeersity
  • Received:2009-11-13 Revised:2010-07-21 Online:2010-12-15 Published:2010-12-15

摘要:

建立了采用高效液相色谱-电喷雾电离质谱法(HPLC-ESI/MS)测定纯毛精纺花呢中残留偶氮染料的方法。纯毛精纺花呢试样中禁用偶氮染料经提取和还原后,在Eclipse XDB-C18柱(150 mm × 2.1 mm , I.D., 5 µm )上采用甲醇/醋酸-醋酸铵溶液(5 mmol/L, pH=5.5)为流动相进行梯度洗脱分离,采用电喷雾电离离子化技术在选择离子监测(SIM)模式下进行测定,外标法定量。实现了21种芳香胺的同时分离检测,其加标回收率为80.0%~102.4%,相对标准偏差小于9.4%。该方法简便、快速、灵敏,能满足纺织品中残留的检测需求。

Abstract:

A method has been developed for the determination of the banned AZO colourants in dyed pure worsted fabrics by high-performance liquid chromatography coupled with an electrospray ionization mass spectrometry (HPLC-ESI/MS). After the banned AZO colourants in dyed worsted fabrics were extracted and deoxidized, the separation was performed on a ZORBAX Eclipse XDB-C18 column(150 mm × 2.1 mm I.D., 5 µm)with mobile phase consisting of 5 mmol/L aqueous ammonium acetate-acetic acid/methanol in gradient elution. Detection was carried out by an ion trap mass spectrograph with an ESI interface in the positive mode using external standard method. Simultaneous separation and determination of 21 aromatic amines were realized. The recoveries were between 80.0~102.4 %, and the RSDs were less than 9.4 %. This method was found to be sensitive, fast and accurate, and it can be used for the determination of the banned AZO colourants in dyed textiles samples.

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