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Stanovení formaldehydu ve vzduchu reflexní spektrofotometrií
[Determination of formaldehyde in air using reflectance spectrophotometry]
Vladimír Pitschmann, Zbyněk Kobliha, Emil Halámek, IvanaTušarová
Chemické listy.
2007 ;
101 (10) :
790-792.
Language Czech Country Czech Republic
Persistent link
https://www.medvik.cz/link/bmc07502420
A method for determination of formaldehyde in air using 4-amino-3-hydrazino-5-sulfanyl-1,2,4-triazole as chromogenic reagent has been described. The blue coloration formed on an indicator strip was evaluated using reflectance spectrophotometry. The detection limit is at least 0.07 mg m?3 of HCHO (the WHO limit is 0.1 mg m?3) after taking an air sample for 1 min at the flow rate 1 dm3 min-1.
Determination of formaldehyde in air using reflectance spectrophotometry
Bibliography, etc.
Lit.: 9
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