A rapid air titration method for determining SO2 concentration in inhalation chambers.
A rapid air titration method for determining SO2 concentration in inhalation chambers.
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一种快速空气滴定法测定吸入室中 SO2 浓度。
DOI：
10.1080/15298668591394905
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Palmes,ED
中科院分区：
文献类型：
--
作者：
Snyder,EA;Palmes,ED
用West和Gaeke的副玫瑰苯胺-甲醛(PRA)法验证了一种快速测定吸入室SO2浓度的空气滴定方法。这种空气滴定(碘酸盐)法是使用淀粉指示剂的碘量法的改进。反应中使用了碘酸钾和过量的碘化钾。采样在10分钟或更短的时间内完成，浓度通过一个简单的公式计算。对于未经校正的碘酸盐鼓泡器结果，在0.5ppmSO2至100ppmSO2浓度范围内推导出线性方程，根据串联式鼓泡器浓度校正的数据和校正的平均碘酸盐鼓泡器效率的数据。在这一范围内，对于所有三组数据，与PRA方法的线性相关性为0.999。
A rapid air titration method for determining SO2concentration in inhalation chambers has been validated using the pararosaniline-formaldehyde (PRA) method of West and Gaeke. This air-titration (iodate) method is an adaptation of iodometric methods using a starch indicator. Potassium iodate and an excess of potassium iodide are used in the reaction. Sampling is completed in ten minutes or less and concentration is calculated by use of a simple formula. Linear equations were derived over the range of concentrations from 0.5 to 100 ppm SO2for uncorrected iodate bubbler results, data corrected for tandem bubbler concentrations and data corrected for mean iodate bubbler efficiency. Linear correlation with the PRA method over this range was 0.999 for all three sets of data.