EVALUATION OF DIFFERENT COLORIMETRIC REAGENTS FOR THE DETERMINATION OF FORMALDEHYDE IN INDOOR ENVIRONMENTS

被引：4
作者：
Silveira, Darllene [1 ]
Fernandes, Jessica Oliveira [1 ]
Pereira, Elisabete Alves [1 ]
机构：
[1] Univ Fed Sao Carlos, CCTS, Dept Fis Quim & Matemat, BR-18052780 Sorocaba, SP, Brazil
来源：
QUIMICA NOVA | 2015年 / 38卷 / 06期
关键词：
formaldehyde; colorimetric reagents; indoor air samples; AIR; ALDEHYDES; EXPOSURE; ASSAY;
D O I：
10.5935/0100-4042.20150078
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Different colorimetric reagents, the Nash reagent (acetylacetone/ammonia solution), Purpald (4-amino3- hydrazino-5-mercapto-1,2,4-triazole/sodium hydroxide solution) and 3-methyl-2-benzothiazolinone hydrazone (MBTH), were evaluated for the determination of formaldehyde in indoor air samples. Analytical parameters such as color stability of the product formed, sampling efficiency and reaction conditions were compared for the methodologies. Several method validation parameters were determined for the three colorimetric methods. The MBTH method showed better results and was used for the determination of formaldehydes in indoor environments.
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收藏
页码：842 / 847
页数：6
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