离子色谱电导检测法测定水基胶黏剂中氨的残留  

Determination of Ammonia in Water-borne Adhesives by Ion Chromatography

作　　者：者为[1] 范多青[1] 王庆华[1] 李响丽[1] 王文元[1] 史小波[1] 

机构地区：[1]红云红河烟草集团有限责任公司技术中心,云南昆明650202

出　　处：《分析测试学报》2012年第6期734-737,共4页Journal of Instrumental Analysis

基　　金：国家烟草专卖局标准项目资助

摘　　要：建立了一种离子色谱电导检测法测定水基胶黏剂中氨残留的方法。样品经10 mmol/L盐酸水溶液振荡、离心、过滤提取后,采用阳离子交换色谱柱分离和电导检测。在优化实验条件下,样品中的氨在0.05～2.0 mg/L范围内呈良好的线性关系(r2=0.999 8),加标回收率在93%～102%之间,相对标准偏差不高于4.3%,检出限(S/N=3)为0.007 mg/L,定量下限(S/N=10)为0.024 mg/L。结果表明该方法能够达到定量检测的目的。将该方法用于实际样品检测,结果可靠。通过对氨的稳定性实验发现,处理好的样品宜在12 h内测定。An ion chromatographic （IC） method was developed for the quantitative analysis of ammonia in water-borne adhesives. After extracted with 10 mmol/L hydrochloric acid and purified by oscil- lation eentrifugation and filtration, the ammonia was separated by ion chromatography and detected with electrical conductivity detector. The results showed that the ammonia had a good linearity （r2 = 0. 999 8 ） in the range of 0. 05 - 2.0 mg/L. The detection limit（ S/N = 3 ） was 0. 007 mg/L and the quantitation limit （ S/N = 10 ） was 0. 024 mg/L. The average recoveries were between 93% and 102% with relative standard deviations not more than 4.3% . The analysis of real samples verified the reliability of this method. The stability test of ammonia results suggested that the processed samples should be measured in 12 h.

关 键 词：离子色谱 电导检测 水基胶黏剂 氨 

分 类 号：O657.75[理学—分析化学] TQ113.26[理学—化学]