Passive sampling detection method of formaldehyde in environment

The invention discloses a passive sampling detection method of formaldehyde in the environment, comprising the following steps of: adopting a unpowered diffusive sampler for passive sampling of formaldehyde, performing a reaction between formaldehyde and 2,4-dinitrophenylhydrazine (DNPH) in an acid...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SHI CHAOOU, LIU JUAN, YIN XUEMEI, XU FANGYUAN, XU XUEPING, HUANG CAIYONG, MA HAO, WU LAIMING, YAO BAOLONG, XIE YULIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a passive sampling detection method of formaldehyde in the environment, comprising the following steps of: adopting a unpowered diffusive sampler for passive sampling of formaldehyde, performing a reaction between formaldehyde and 2,4-dinitrophenylhydrazine (DNPH) in an acid medium for online derivation; extracting formaldehyde 2,4-dinitrophenylhydrazone to be detected by the use of acetonitrile; detecting by the adoption of a liquid chromatographic system, and calculating the concentration of formaldehyde. The method provided by the invention is simple and easy to operate, has high sensitivity, low detection limit and good linearity, is widely applied, and has very high practical application values.