Development and performance evaluation for a solid phase adsorption gas sampler of formaldehyde in indoor air
室内空气中甲醛的固相吸附气体采样管研制和性能评价
Results For the solid phase adsorption gas sampler, the collection efficiency was 98.7%, and the desorption efficiency was 98.6%.
结果固相吸附气体采样管采样效率、洗脱效率分别为(98.73±0.86)%和(98.60±1.20)%;
According to the principle of karl Fischer coulometry, the water content in rectified VCM dried by solid caustic soda was determined using Modle LG-5 liquid hydrocarbon flash vaporization sampler. The difference among parallel analytical datas was less than 20 × 10~ (-6).
利用卡尔.费休库仑法的原理,使用LG-5型液态烃闪蒸气化取样进样器,测定经固碱干燥系统干燥的精馏VCM中的水分含量,其平行分析数据误差小于20×10-6。
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