流动注射-氢化物发生-冷原子吸收分光光度法测定高吸水性止血材料中汞的研究  

Study on Determination of Mercury in Super Absorbent Hemostatic Material by FI-HG-CAAS

作　　者：孙小莉 刘东 杨永环 汤祥忠 汤晓阳 刘向辉 SUN Xiaoli;LIU Dong;YANG Yonghuan;TANGXiangzhong;TANGXiaoyang;LIU Xianghui(Medical Instrument Testing of Henan,Zhengzhou Henan 45000)

机构地区：[1]河南省医疗器械检验所,河南郑州450003

出　　处：《河南科技》2018年第26期143-146,共4页Henan Science and Technology

基　　金：河南省科技攻关项目"胶原-透明质酸/丝素肽高吸水性止血材料的研制"(162102310380)

摘　　要：本文通过还原剂、载气流速及载液浓度等试验条件的探索,以确定原子吸收分光光度计仪器的最佳工作状态。分别采用硝酸-双氧水、硝酸-硫酸体系,在110℃下消解高吸水性止血材料,用流动注射-氢化物发生-冷原子吸收分光光度法测定高吸水性止血材料中的汞。结果表明:该方法的分析结果可靠,样品回收率为97.6%～103.8%,灵敏度为0.013 9ng/mL/1%,检出限为0.023ng/mL,相对标准偏差(n=6)≤4.0%,线性范围为0～50ng/mL。The optimal conditions, such as reductant, flow- rate of carrier and concentration, were systematically stud- ied. Nitric-hydrogen peroxide and nitric-sulfuric acid were applyed to decompose super absorbent hemostatic materi- al dressing at 110℃, the experimental results showed that the analytical result was reliable with the recovery in the range of 97.6%-103.8%, the characteristic concentration 0.0139ng/mL/1%, the detection limit of 0.023ng/mL, the relative standard deviation （n = 6） of less than 4.0%, the linear range between 0 and 50ng/mL.

关 键 词：汞 流动注射 氢化物发生器 高吸水性止血材料 

分 类 号：O657.31[理学—分析化学] O614.243[理学—化学]