摘要
建立了简单的对台式计算机机箱内粉尘含铅量的检测方法。用原子吸收法,在优化的仪器工作条件下,将检测目标控制在测定铅的线性范围中,精度优良。结果表明,机箱内粉尘铅含量平均值为0.027μg,机箱外排风口的粉尘铅含量平均值为0.007μg,对其t检验,t=3.886,P<0.01,两组差别显著。可见,机箱内环境为高铅危险沾污区域。
Set a simple method to collect and detect the content of lead in the powders sampled from the cases of desktop computers. Discussed various test conditions and effect factors, developed the method for determination of lead by atomic absorption spectrometry. This method acts with high sensitivity, accurateness. The results revealed, mean value of lead inside cases is 0.027 μg according to our new method comparison standard, mean value near the vents is 0.007 μg, t-test showed, t=3.886, P 〈 0.01, two groups appear significant difl＇erence. Obviously, the areas in boxes are highly dangerous because of the lead powders contained.
出处
《广东化工》
CAS
2013年第6期21-21,33,共2页
Guangdong Chemical Industry
关键词
铅
粉尘
电子信息产品
原子吸收光谱法
lead： dust： electronic information products
atomic absorption spectrometry
