Autor: Motyka, K.; Mikuska, P.
Název práce v češtině: Continuous fluorescence determination of formaldehyde in air
Název práce v angličtině: Continuous fluorescence determination of formaldehyde in air
Studentská publikace: ne

Abstrakt anglicky: A flow method for the determination of formaldehyde in air is presented. A cylindrical wet effluent diffusion denuder (CWEDD) is used for continuous collection of formaldehyde from air into distilled-deionized water as denuder liquid. Collected formaldehyde in the denuder concentrate is on-line determined by fluorescence 2,4-pentandione method. The collection efficiency of HCHO is quantitative at the air flow rate of 0.51 min(-1). The calibration graph is linear in the range 2-300 mug m(-3) HCHO. The limit of detection is 1.6 mug m(-3) HCHO. The relative standard deviations for 2 x 10(-6) and 1 x 10(-5) M HCHO are 2.57 and 1.06%, respectively. Acetaldehyde, acetone, formic acid and acetic acid do not interfere. Delay of the signal is 2.5 min.
Jazyk v originále: english
Název časopisu: Anal. CHim. Acta
Rok: 2004
Svazek (ročník): 518
Číslo časopisu v rámci uvedeného svazku: 1-2
Strana od-do: 51-57

Q1: ne