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| 过氯乙烯滤膜采样-酸消解-钼蓝光度法测定磷酸雾 |
| To Determine Phosphoric Acid Fume with Perchloroethylene Filter Membrane Sampling-Acid Digestion-Molybdenumblue Spectrophotometry |
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| DOI： |
| 中文关键词: 废气 磷酸雾 酸消解 分光光度法 |
| 英文关键词: Wastegas Phosphoricacidfume Acid digestion Spectrophotometry |
| 基金项目: |
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| 摘要点击次数: 1141 |
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| 中文摘要: |
| 建立了过氯乙烯滤膜采样-酸消解-钼蓝分光光度法测定磷化车间磷酸雾的监测方法。实验室模拟采样的捕集效率为95.7% ~ 99.1% 。单个实验室对含5μ g 和15μ g样品进行多次测定, 其相对标准差小于5%, 样品加标回收率为98.2% ~ 100 .5%, 方法检测限为0.007 mg/ m 3 。对标样测定, 结果均在给定值范围内。 用该法与等离子发射光谱法 (ICP)对5个样品进行比对测定, 结果均令人满意。 |
| 英文摘要: |
| The monitoring methodsto detect phosphoric acid fumein phosphorylation workshop was made up with perchloroethylenefilter membranesampling-acid digestion-molybdenumbluespectrophotometry. Thetrapefficiency ofsimulatedsamplinginlaboratory was95.7% ~ 99.1%.In alaboratory,thesamplescontaining5 μg and15μg weredetermined manytimes,itsrelativestandard deviation waslessthan 5%, andtherecovery w as 98.2% ~ 100.5%. The detectionlimit was0.007 mg/m 3 . T he detection resultsofstandardsamples w erealllocated withinthelimitation. Compared withICP throughthecomparativedetectionoffivesamples,this methodscan betaken asan satisfiedone. |
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