石墨炉原子吸收法测定Lanaset染料染色羊绒中铬残留量

纺织学报 ›› 2012, Vol. 33 ›› Issue (5): 91-94.

石墨炉原子吸收法测定Lanaset染料染色羊绒中铬残留量

李志刚

浙江工业职业技术学院

收稿日期:2011-07-07 修回日期:2012-02-09 出版日期:2012-05-15 发布日期:2012-05-15
通讯作者: 李志刚 E-mail:13605884092@163.com

Determination of chromium residue in cashmere dyeing with Lanaset by graphite furnace atomic absorption spectrometry

LI Zhi-Gang

Zhejiang Industuy Polytechnic College

Received:2011-07-07 Revised:2012-02-09 Online:2012-05-15 Published:2012-05-15
Contact: ［中］李志刚 [英]LI Zhi-Gang E-mail:13605884092@163.com

摘要/Abstract

摘要： Lanaset是一种由含有活性溴代丙烯酰胺基团的毛用活性染料与金属络合物混合的染料,为了解Lanaset染料对羊绒染色后铬的残留量，采用微波消解进行前处理，以HNO3+H2O2(5+2，V/V)作为消解试剂，采用石墨炉原子吸收（GFAAS）法，建立了一种简便、灵敏、准确的羊绒中痕量铬的GFAAS测定方法。设定样品消化液灰化温度为1100℃，实验原子化温度为2300℃。结果显示，铬的最低检出浓度为0.22 μg/L，相对标准偏差为3.6%～6.3%，回收率为96.0%～102.3%。对15份试验样品进行检测，铬含量在0.126～0.289 mg/kg范围，明显低于生态纺织品标准限量要求。

关键词: 羊绒 , 铬 , 染色 , 染料

Abstract: Lanaset is activated by the bromide containing acrylamide groups of wool with reactive dyes and metal complex dyes mixed in order to understand Lanaset chromium dyes for dyeing wool residues, microwave digestion pretreatment to HNO3 + H2O2 (5 +2, V / V) as a digestion reagent, using graphite furnace atomic absorption (GFAAS) method, to establish a simple, sensitive and accurate cashmere in the GFAAS determination of trace amounts of chromium . Set the temperature of the sample digested ash 1100 ℃, experimental atomization temperature of 2300 ℃. The results show that the minimum detectable concentration of chromium is 0.22 μg / L, relative standard deviation of 3.6% to 6.3%, recovery was 96.0% ~ 102.3%. 15 test samples for testing, chromium content in the 0.126 ~ 0.289 mg / kg range, significantly lower than the limit required Eco-textiles standards.

Key words: cashmere , chrome , dyeing , dye

李志刚. 石墨炉原子吸收法测定Lanaset染料染色羊绒中铬残留量[J]. 纺织学报, 2012, 33(5): 91-94.

LI Zhi-Gang. Determination of chromium residue in cashmere dyeing with Lanaset by graphite furnace atomic absorption spectrometry[J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(5): 91-94.

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