CAJ | 학술논문

石墨炉原子吸收分析法具有灵敏度高、检出限低、干扰少等优点，已被广泛应用于环境、食品等领域中金属元素的痕量分析。采用石墨炉原子吸收法测定若干建筑涂料中铜元素的含量，标准曲线线性范围在0～100μg/L范围内，相关系数r=0.9966，试样经炭化、灰化、酸溶解、过滤后，就可以上机测定，方法快速简便。测定结果显示，10种涂料的吸光度为0.087～0.365，铜质量分数均低于90 mg/kg，符合国家建筑材料环保要求。
석묵로원자흡수분석법구유령민도고、검출한저、간우소등우점，이피엄범응용우배경、식품등영역중금속원소적흔량분석。채용석묵로원자흡수법측정약간건축도료중동원소적함량，표준곡선선성범위재0～100μg/L범위내，상관계수r=0.9966，시양경탄화、회화、산용해、과려후，취가이상궤측정，방법쾌속간편。측정결과현시，10충도료적흡광도위0.087～0.365，동질량분수균저우90 mg/kg，부합국가건축재료배보요구。
The method of graphite furnace atomic absorption has the advantage of high sensitivity,low detection limit and less interference, which has been widely applied in the trace analysis of metal elements in the field of environment,food and so on. In this paper,the content of copper element in a number of architectural coatings were determined by graphite furnace atomic absorption method. While the standard curve linear range from 0 to 100 μg/L,the correlation coefficient r=0. 996 6. The sample was measured by the machine after carbonizing,ashing,acid dissolving,and filtrating. The test results showed that the absorbance of nine kinds of coating was 0. 087~0. 365,copper levels were less than 90 mg/kg,all the measured materials were accord with national requirements of environmental protection building materials.