Ashley K, Fischbach T J, Song R
U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, Cincinnati, OH 45226, USA.
Am Ind Hyg Assoc J. 1996 Feb;57(2):161-5. doi: 10.1080/15428119691015098.
A commercial rhodizonate-based test kit was evaluated for its potential use in the detection of lead in airborne particulate samples at work sites. Over 350 air samples were collected at abrasive blasting lead paint abatement sites using cellulose ester membrane filters and personal sampling pumps. The filter samples were tested with the chemical spot test and then analyzed by graphite furnace atomic absorption spectrophotometry. No positive readings were recorded for lead masses below 1.3 micrograms Pb/filter, and no negative readings were observed for lead amounts above 8.1 micrograms Pb/filter. Experimental data were statistically molded in an effort to estimate the performance parameters of the spot test kit. The identification limit of the kit was found to be approximately 3.6 microgram/filter sample. For lead mass values above approximately 10 micrograms Pb/filter, 95% confidence of a positive reading was found, while 95% confidence of a negative reading was found for lead masses below approximately 0.6 micrograms Pb/filter. Based on the results of this study the rhodizonate-based test kit for lead demonstrates potential for use in field screening for lead in personal breathing zone and area air samples.
对一种基于玫棕酸盐的商用检测试剂盒进行了评估，以确定其在检测工作场所空气颗粒物样本中铅含量方面的潜在用途。在喷砂去除含铅油漆的工作场所，使用纤维素酯膜过滤器和个人采样泵采集了350多个空气样本。对过滤器样本进行化学斑点试验，然后用石墨炉原子吸收光谱法进行分析。对于铅含量低于1.3微克铅/过滤器的样本，未记录到阳性读数；对于铅含量高于8.1微克铅/过滤器的样本，未观察到阴性读数。对实验数据进行统计建模，以估算斑点试验试剂盒的性能参数。发现该试剂盒的识别限约为3.6微克/过滤器样本。对于铅含量高于约10微克铅/过滤器的样本，有95%的把握得到阳性读数；对于铅含量低于约0.6微克铅/过滤器的样本，有95%的把握得到阴性读数。基于本研究结果，基于玫棕酸盐的铅检测试剂盒在个人呼吸区和区域空气样本中铅的现场筛查方面显示出应用潜力。
