氯化钡比浊法测定车间空气中硫酸雾含量的方法研究  

Study on Determination of Sulphuric Acid Mist Content in Air of Workshop by Barium Chloride Turbidimetric Method

作　　者：黄丽 HUANG Li(Baiyin Nonferrous Group Co.Ltd.,Baiyin 730900,China)

机构地区：[1]白银有色集团股份有限公司,甘肃白银730900

出　　处：《甘肃冶金》2021年第4期119-121,126,共4页Gansu Metallurgy

摘　　要：采用尘毒多功能采样仪在某车间内采集硫酸雾样品,用蒸馏水洗脱后,选取乙二醇和丙三醇两种试剂分别配制混合试剂,使样品溶液与氯化钡反应生成硫酸钡。在420 nm波长下用紫外可见分光光度计测量其吸光度,进行定量样品中硫酸雾的含量,从而得出车间空气中硫酸雾含量。通过分析比较得出用丙三醇优于乙二醇的试验条件。采用此方法的线性良好,具有良好的准确度和精密度,符合测定要求,能够准确快速的测定车间空气中硫酸雾含量。The sulfuric acid mist sample was collected in a workshop with the dust poison multi-functional sampling instrument,after elution with distilled water,a more optimized mixed reagent was selected to react with barium chloride to produce barium sulfate.The absorbance was measured by ultraviolet visible spectrophotometer at the wavelength of 420 nm,and the content of sulfuric acid mist in the sample was quantified,so as to obtain the content of sulfuric acid mist in the air of the workshop.This method has good linearity,good accuracy and precision,meets the requirements of determination,and can accurately and rapidly determine the content of sulfuric acid mist in the air of workplace.

关 键 词：车间空气 尘毒多功能采样器 蒸馏水洗脱 氯化钡 分光光度计 硫酸雾 

分 类 号：R122.11[医药卫生—环境卫生学]